15 de março de 2018
10
Banco de Dados Desenvolvimento de Query Manutenção SQL Server

SQL Server – Como padronizar o Collation de todas as colunas do database

Tempo de Leitura: 15 minutos

Olá pessoal!
Tudo tranquilo?

Neste artigo, gostaria de compartilhar com vocês um problema que tive recentemente, o qual várias colunas, de várias tabelas de um determinado database utilizavam uma collation diferente do padrão do DB, fazendo com que ao realizar joins e condições WHERE entre colunas VARCHAR/CHAR/NVARCHAR com collations diferentes, o banco nos retorne a seguinte mensagem de erro:

Cannot resolve the collation conflict between “SQL_Latin1_General_CP1_CI_AI” and “SQL_Latin1_General_CP1_CI_AS” in the equal to operation.

O que é uma COLLATION?

O Collation nada mais é do que a forma de codificação de caracteres que um banco de dados utiliza para interpretá-los.

Um Collation é um agrupamento desses caracteres em uma determinada ordem (cada Collation tem uma ordem diferente), onde o “A” é um caracter diferente do “a”, caso o collation seja case-sensitive (diferenciação de maiúsculos e minúsculos) e o “a” é diferente do “á”, caso o collation seja Accent-Sensitive (diferenciação de acentos).

O COLLATION possui três níveis de hierarquia:
– Servidor
– Database
– Coluna

Caso o database seja criado sem especificar qual a collation que será utilizada, ele será criado com a collation do servidor (idioma do sistema operacional). Quando uma tabela é criada sem especificar o collation das colunas de texto (VARCHAR, NVARCHAR, CHAR, etc), o collate do database será utilizado como o collation das tabelas.

No SQL Server, o nome da Collation segue o seguinte padrão de nomeclatura:
SQL_CollationDesignator_CaseSensitivity_AccentSensitivity_KanatypeSensitive_WidthSensitivity

Exemplo de Collation:
SQL_Latin1_General_CP1_CS_AS

Onde:

CollationDesignator: Especifica as regras de agrupamento básicas usadas pelo agrupamento do Windows, onde as regras de classificação são baseadas no alfabeto ou no idioma.
CaseSensitivity: CI especifica que não diferencia maiúsculas de minúsculas, CS especifica que diferencia maiúsculas de minúsculas.
AccentSensitivity: AI especifica que não diferencia acentos, AS especifica que diferencia acento.
KanatypeSensitive: Omitido especifica que não faz distinção de caracteres kana, KS especifica que faz distinção de caracteres kana.
WidthSensitivity: Omitido especifica que não distingue largura, WS especifica que distingue largura.

Se uma coluna estiver utilizando uma COLLATION case sensitive (CS), uma query como SELECT * FROM Tabela WHERE Coluna LIKE ‘%Oracle%’ irá retornar o registro “Oracle”, mas não irá retornar o registro “oracle”.

A mesma coisa acontece com uma coluna utilizando um COLLATION accent sensitive (AS). Uma query como SELECT * FROM Tabela WHERE Coluna LIKE ‘%JOÃO%’ irá retornar o registro “João”, mas não irá retornar o registro “Joao”.

Para verificar a lista completa de Collations por região e idioma, acesse este link, lembrando que o mais utilizado no idioma Português (Brasil) é o SQL_Latin1_General_CP1_CI_AI (ou SQL_Latin1_General_CP1_CS_AS).

Para saber mais sobre o que é Collation, dê uma olhada no artigo SQL Server – Cannot resolve the collation conflict between … in the equal to operation..

Como identificar a collation padrão?

Para identificar a collation padrão de um database, basta utilizar a query abaixo:

USE [dirceuresende]
GO
SELECT collation_name
FROM sys.databases
WHERE database_id = DB_ID()

USE [dirceuresende]

SELECT collation_name

FROM sys.databases

WHERE database_id = DB_ID()

Resultado:

Para identificar a collation padrão da sua instância, basta utilizar o comando abaixo:

SELECT SERVERPROPERTY('Collation')

1	SELECT SERVERPROPERTY('Collation')

Resultado:

Geração da base para os testes

Para padronizar os exemplos e ajudar no entendimento prático desse artigo, vou utilizar um script simples para gerar dados de exemplo (testes):

------------------------------------------------------------------------
-- Geração dos dados para teste
------------------------------------------------------------------------
CREATE TABLE dbo.Cliente (
CPF VARCHAR(11) COLLATE Latin1_General_CS_AS NOT NULL PRIMARY KEY CLUSTERED,
Nome VARCHAR(50)
)
INSERT INTO dbo.Cliente ( CPF, Nome )
VALUES ( '12345678909', 'Joãozinho' )
CREATE NONCLUSTERED INDEX SK01 ON dbo.Cliente(CPF) INCLUDE(Nome)
CREATE TABLE dbo.Pedido (
Id INT IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED,
Dt_Pedido DATETIME DEFAULT GETDATE(),
Vl_Pedido MONEY,
CPF_Cliente VARCHAR(11) COLLATE Latin1_General_CS_AS CONSTRAINT [FK_Cliente] FOREIGN KEY(CPF_Cliente) REFERENCES dbo.Cliente(CPF) NOT NULL
)
INSERT INTO dbo.Pedido ( Vl_Pedido, CPF_Cliente )
VALUES
(
9.99, -- Vl_Pedido - money
'12345678909' -- Id_Cliente - int
)
CREATE NONCLUSTERED INDEX SK02 ON dbo.Pedido(Id, Dt_Pedido, CPF_Cliente)

------------------------------------------------------------------------

-- Geração dos dados para teste

------------------------------------------------------------------------

CREATE TABLE dbo.Cliente (

CPF VARCHAR(11) COLLATE Latin1_General_CS_AS NOT NULL PRIMARY KEY CLUSTERED,

Nome VARCHAR(50)

)

INSERT INTO dbo.Cliente ( CPF, Nome )

VALUES ( '12345678909', 'Joãozinho' )

CREATE NONCLUSTERED INDEX SK01 ON dbo.Cliente(CPF) INCLUDE(Nome)

CREATE TABLE dbo.Pedido (

Id INT IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED,

Dt_Pedido DATETIME DEFAULT GETDATE(),

Vl_Pedido MONEY,

CPF_Cliente VARCHAR(11) COLLATE Latin1_General_CS_AS CONSTRAINT [FK_Cliente] FOREIGN KEY(CPF_Cliente) REFERENCES dbo.Cliente(CPF) NOT NULL

)

INSERT INTO dbo.Pedido ( Vl_Pedido, CPF_Cliente )

VALUES

(

9.99, -- Vl_Pedido - money

'12345678909' -- Id_Cliente - int

)

CREATE NONCLUSTERED INDEX SK02 ON dbo.Pedido(Id, Dt_Pedido, CPF_Cliente)

Como padronizar a collation de todas as colunas?

Caso você queira padronizar a collation de todas as colunas de um database, de modo que elas utilizem uma collation específica ou a padrão do database, desenvolvi um script que irá identificar todas as colunas que estão fora do padrão e irá executar um comando de ALTER TABLE para aplicar a alteração.

Como existem dependências (constraints, índices e foreign keys), o script irá dropar os objetos dependentes identificados, aplicar as alterações e recriar esses objetos. Por conta disso, recomendo fortemente que você teste bem antes de executar esse script em produção. De preferência, faça um backup de estrutura antes.

Script para alterar a collation de todas as colunas (e dependências) que estejam com o Collation diferente do database
Visualizar código-fonte

SET NOCOUNT ON
-------------------------------------------------------------------------
-- Identifica as colunas com collation diferente do padrão do database conectado
-------------------------------------------------------------------------
IF (OBJECT_ID('tempdb..#Colunas') IS NOT NULL) DROP TABLE #Colunas
SELECT
B.[object_id] AS table_object_id,
B.[name] AS table_name,
B.[schema_id] AS table_schema_id,
C.[name] AS [type_name],
D.[name] AS [schema_name],
D.[schema_id],
A.*,
C.system_type_id AS type_system_type_id,
C.user_type_id AS type_user_type_id,
C.collation_name AS type_collation_name,
E.collation_name AS [database_default_collation]
INTO
#Colunas
FROM
sys.columns		            AS A
JOIN sys.tables	            AS B ON A.[object_id] = B.[object_id]
JOIN sys.types		    AS C ON A.user_type_id = C.user_type_id
JOIN sys.schemas	            AS D ON B.[schema_id] = D.[schema_id]
JOIN sys.databases	            AS E ON E.database_id = DB_ID()
WHERE
B.is_ms_shipped = 0
AND A.collation_name <> E.collation_name COLLATE DATABASE_DEFAULT
IF (OBJECT_ID('tempdb..#Tabelas') IS NOT NULL) DROP table #Tabelas
SELECT DISTINCT
table_object_id,
table_name,
table_schema_id,
[schema_name]
INTO
#Tabelas
FROM
#Colunas
-------------------------------------------------------------------------
-- Identifica os índices que utilizam essas colunas
-------------------------------------------------------------------------
IF (OBJECT_ID('tempdb..#Indices') IS NOT NULL) DROP TABLE #Indices
SELECT 
A.*,
B.[name] AS index_name,
B.[type],
B.[type_desc],
B.is_unique,
B.is_primary_key,
B.is_unique_constraint,
B.is_disabled
INTO 
#Indices
FROM
#Colunas A
JOIN sys.indexes B ON A.table_object_id = B.[object_id]
WHERE
EXISTS(SELECT NULL FROM sys.index_columns X WHERE X.index_id = B.index_id AND X.column_id = A.column_id)
IF (OBJECT_ID('tempdb..#Indices_Alteracao') IS NOT NULL) DROP TABLE #Indices_Alteracao
SELECT DISTINCT
table_object_id,
table_schema_id,
table_name,
[schema_name],
type_collation_name,
database_default_collation,
index_name,
is_unique_constraint,
is_primary_key
INTO
#Indices_Alteracao
FROM
#Indices
-------------------------------------------------------------------------
-- Gera os scripts
-------------------------------------------------------------------------
DECLARE 
@CmdAlterTable VARCHAR(MAX) = '',
@CmdDropIndex VARCHAR(MAX) = '',
@CmdCreateIndex VARCHAR(MAX) = '',
@CmdDropFK VARCHAR(MAX) = '',
@CmdCreateFK VARCHAR(MAX) = '',
@CmdDropIndexConstraint VARCHAR(MAX) = '',
@CmdCreateIndexConstraint VARCHAR(MAX) = '',
@CmdDisableCK VARCHAR(MAX) = '',
@CmdEnableCK VARCHAR(MAX) = '',
@Fl_Debug BIT = 1
SELECT 
@CmdDropIndex += (CASE WHEN is_unique_constraint = 0 AND is_primary_key = 0 THEN 'DROP INDEX [' + index_name + '] ON [' + [schema_name] + '].[' + table_name + ']; ' ELSE '' END),
@CmdDropIndexConstraint += (CASE WHEN is_unique_constraint = 1 OR is_primary_key = 1 THEN 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] DROP CONSTRAINT [' + index_name + ']; ' ELSE '' END),
@CmdDisableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] NOCHECK CONSTRAINT ALL; ',
@CmdEnableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] CHECK CONSTRAINT ALL; '
FROM
#Indices_Alteracao
-------------------------------------------------------------------------
-- Identifica AS FK's que utilizam essas colunas
-------------------------------------------------------------------------
SELECT
@CmdDropFK += N'ALTER TABLE ' + QUOTENAME(C.[name]) + '.' + QUOTENAME(B.[name]) + ' DROP CONSTRAINT ' + QUOTENAME(A.[name]) + ';'
FROM
sys.foreign_keys AS A
JOIN sys.tables AS B ON A.parent_object_id = B.[object_id]
JOIN sys.schemas AS C ON B.[schema_id] = C.[schema_id]
JOIN #Tabelas AS D ON B.[object_id] = D.table_object_id
SELECT
@CmdCreateFK += N'ALTER TABLE ' + QUOTENAME(H.[name]) + '.' + QUOTENAME(G.[name]) + ' ADD CONSTRAINT ' + QUOTENAME(D.[name]) + ' FOREIGN KEY (' + 
STUFF((
SELECT
',' + QUOTENAME(A.[name])
FROM
sys.columns AS A
INNER JOIN sys.foreign_key_columns AS B ON B.parent_column_id = A.column_id AND B.parent_object_id = A.[object_id]
WHERE
B.constraint_object_id = D.[object_id]
ORDER BY
B.constraint_column_id
FOR XML PATH(N''), TYPE).value(N'.[1]', N'nvarchar(max)'), 1, 1, N'') + ') REFERENCES ' + QUOTENAME(F.[name]) + '.' + QUOTENAME(E.[name]) + '(' + 
STUFF((
SELECT
',' + QUOTENAME(C.[name])
FROM
sys.columns AS C
INNER JOIN sys.foreign_key_columns AS fkc ON fkc.referenced_column_id = C.column_id AND fkc.referenced_object_id = C.[object_id]
WHERE
fkc.constraint_object_id = D.[object_id]
ORDER BY
fkc.constraint_column_id
FOR XML PATH(N''), TYPE
).value(N'.[1]', N'nvarchar(max)'), 1, 1, N''
) + ');'
FROM
sys.foreign_keys AS D
JOIN sys.tables AS E ON D.referenced_object_id = E.[object_id]
JOIN sys.schemas AS F ON E.[schema_id] = F.[schema_id]
JOIN sys.tables AS G ON D.parent_object_id = G.[object_id]
JOIN sys.schemas AS H ON G.[schema_id] = H.[schema_id]
JOIN #Tabelas AS I ON G.[object_id] = I.table_object_id
WHERE
E.is_ms_shipped = 0
AND G.is_ms_shipped = 0
SELECT
@CmdCreateIndex += (CASE WHEN B.is_unique_constraint = 0 AND B.is_primary_key = 0 THEN 'CREATE ' + (CASE WHEN B.is_unique = 1 THEN 'UNIQUE ' ELSE '' END) + B.[type_desc] COLLATE DATABASE_DEFAULT + ' INDEX [' + B.[name] + '] ON [' + SCHEMA_NAME(C.[schema_id]) + '].[' + C.[name] + '] (' + E.KeyColumns + ')' + ISNULL(' INCLUDE (' + I.IncludedColumns + ')', '') + ISNULL(' WHERE ' + B.filter_definition, '') + ' WITH (' + CASE WHEN B.is_padded = 1 THEN 'PAD_INDEX = ON' ELSE 'PAD_INDEX = OFF' END + ', ' + 'FILLFACTOR = ' + CONVERT(VARCHAR(5), CASE WHEN B.fill_factor = 0 THEN 100 ELSE B.fill_factor END) + ', ' +
'SORT_IN_TEMPDB = OFF, ' + (CASE WHEN B.[ignore_dup_key] = 1 THEN 'IGNORE_DUP_KEY = ON' ELSE 'IGNORE_DUP_KEY = OFF' END) + ', ' + (CASE WHEN F.no_recompute = 0 THEN 'STATISTICS_NORECOMPUTE = OFF' ELSE 'STATISTICS_NORECOMPUTE = ON' END) + ', ' +
'ONLINE = OFF, DATA_COMPRESSION = PAGE, ' + (CASE WHEN B.[allow_row_locks] = 1 THEN 'ALLOW_ROW_LOCKS = ON' ELSE 'ALLOW_ROW_LOCKS = OFF' END) + ', ' + (CASE WHEN B.[allow_page_locks] = 1 THEN 'ALLOW_PAGE_LOCKS = ON' ELSE 'ALLOW_PAGE_LOCKS = OFF' END) + ') ON [' + G.[name] + ']; ' ELSE '' END),
@CmdCreateIndexConstraint += (CASE WHEN B.is_unique_constraint = 1 OR B.is_primary_key = 1 THEN 'ALTER TABLE [' + A.[schema_name] + '].[' + A.table_name + '] ADD CONSTRAINT [' + A.index_name + '] ' + (CASE WHEN B.is_primary_key = 1 THEN 'PRIMARY KEY ' ELSE '' END) + (CASE WHEN B.is_unique = 1 AND B.is_primary_key = 0 THEN 'UNIQUE ' ELSE '' END) + B.[type_desc] COLLATE DATABASE_DEFAULT + ' (' + E.KeyColumns + ')' + ISNULL(' INCLUDE (' + I.IncludedColumns + ')', '') + ISNULL(' WHERE ' + B.filter_definition, '') + ' WITH (' + CASE WHEN B.is_padded = 1 THEN 'PAD_INDEX = ON' ELSE 'PAD_INDEX = OFF' END + ', ' + 'FILLFACTOR = ' + CONVERT(VARCHAR(5), CASE WHEN B.fill_factor = 0 THEN 100 ELSE B.fill_factor END) + ', ' +
'SORT_IN_TEMPDB = OFF, ' + (CASE WHEN B.[ignore_dup_key] = 1 THEN 'IGNORE_DUP_KEY = ON' ELSE 'IGNORE_DUP_KEY = OFF' END) + ', ' + (CASE WHEN F.no_recompute = 0 THEN 'STATISTICS_NORECOMPUTE = OFF' ELSE 'STATISTICS_NORECOMPUTE = ON' END) + ', ' +
'ONLINE = OFF, DATA_COMPRESSION = PAGE, ' + (CASE WHEN B.[allow_row_locks] = 1 THEN 'ALLOW_ROW_LOCKS = ON' ELSE 'ALLOW_ROW_LOCKS = OFF' END) + ', ' + (CASE WHEN B.[allow_page_locks] = 1 THEN 'ALLOW_PAGE_LOCKS = ON' ELSE 'ALLOW_PAGE_LOCKS = OFF' END) + ') ON [' + G.[name] + ']; ' ELSE '' END)
FROM
#Indices_Alteracao	AS A
JOIN sys.indexes    AS B ON A.table_object_id = B.[object_id] AND A.index_name = B.[name] COLLATE DATABASE_DEFAULT
JOIN sys.tables     AS C ON C.[object_id] = B.[object_id]
JOIN sys.indexes	AS D ON B.[object_id] = D.[object_id] AND B.index_id = D.index_id
JOIN
(
SELECT
*
FROM
(
SELECT
X3.[object_id],
X3.index_id,
STUFF((
SELECT
', [' + X2.[name] + ']' + CASE WHEN MAX(CONVERT(INT, X1.is_descending_key)) = 1 THEN ' DESC' ELSE '' END
FROM
sys.index_columns AS X1
JOIN sys.columns  AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 0
WHERE
X1.[object_id] = X3.[object_id]
AND X1.index_id = X3.index_id
GROUP BY
X1.[object_id],
X2.[name],
X1.index_id
ORDER BY
MAX(X1.key_ordinal)
FOR XML PATH('')
),   1, 2, ''
) AS KeyColumns
FROM
sys.index_columns AS X3
GROUP BY
X3.[object_id],
X3.index_id
) AS X4
)                    AS E ON B.[object_id] = E.[object_id] AND B.index_id = E.index_id
JOIN sys.stats       AS F ON F.[object_id] = B.[object_id] AND F.stats_id = B.index_id
JOIN sys.data_spaces AS G ON B.data_space_id = G.data_space_id
JOIN sys.filegroups  AS H ON B.data_space_id = H.data_space_id
LEFT JOIN
(
SELECT
*
FROM
(
SELECT
X3.[object_id],
X3.index_id,
STUFF((
SELECT
', [' + X2.[name] + ']'
FROM
sys.index_columns AS X1
JOIN sys.columns  AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 1
WHERE
X1.[object_id] = X3.[object_id]
AND X1.index_id = X3.index_id
GROUP BY
X1.[object_id],
X2.[name],
X1.index_id
FOR XML PATH('')
),   1, 2, ''
) AS IncludedColumns
FROM
sys.index_columns AS X3  
GROUP BY
X3.[object_id],
X3.index_id
) AS tmp1
WHERE
IncludedColumns IS NOT NULL
) AS I ON I.[object_id] = B.[object_id] AND I.index_id = B.index_id
SELECT
@CmdAlterTable += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] ALTER COLUMN [' + [name] + '] ' + UPPER([type_name]) + (CASE WHEN UPPER([type_name]) <> 'SYSNAME' THEN '(' + (CASE WHEN A.max_length > 0 THEN CAST(A.max_length AS VARCHAR(10)) ELSE 'MAX' END) + ')' ELSE '' END) + ' COLLATE ' + [database_default_collation] + ' ' + (CASE WHEN A.is_sparse = 1 THEN 'SPARSE ' ELSE '' END) + (CASE WHEN A.is_nullable = 1 THEN 'NULL' ELSE 'NOT NULL' END) + ';'
FROM
#Colunas A
-------------------------------------------------------------------------
-- Executa os scripts
-------------------------------------------------------------------------
PRINT '---------- Dropando as contraints FK'
IF (NULLIF(LTRIM(RTRIM(@CmdDropFK)), '') IS NOT NULL) PRINT @CmdDropFK
IF (@Fl_Debug = 0) EXEC(@CmdDropFK)
PRINT '---------- Desativando as Check Contraints'
IF (NULLIF(LTRIM(RTRIM(@CmdDisableCK)), '') IS NOT NULL) PRINT @CmdDisableCK
IF (@Fl_Debug = 0) EXEC(@CmdDisableCK)
PRINT '---------- Dropando os índices'
IF (NULLIF(LTRIM(RTRIM(@CmdDropIndex)), '') IS NOT NULL) PRINT @CmdDropIndex
IF (@Fl_Debug = 0) EXEC(@CmdDropIndex)
PRINT '---------- Dropando os índices em constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdDropIndexConstraint)), '') IS NOT NULL) PRINT @CmdDropIndexConstraint
IF (@Fl_Debug = 0) EXEC(@CmdDropIndexConstraint)
PRINT '---------- Alterando a tabela'
IF (NULLIF(LTRIM(RTRIM(@CmdAlterTable)), '') IS NOT NULL) PRINT @CmdAlterTable
IF (@Fl_Debug = 0) EXEC(@CmdAlterTable)
PRINT '---------- Reativando as constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdEnableCK)), '') IS NOT NULL) PRINT @CmdEnableCK
IF (@Fl_Debug = 0) EXEC(@CmdEnableCK)
PRINT '---------- Recriando os índices'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndex)), '') IS NOT NULL) PRINT @CmdCreateIndex
IF (@Fl_Debug = 0) EXEC(@CmdCreateIndex)
PRINT '---------- Recriando os índices em constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndexConstraint)), '') IS NOT NULL) PRINT @CmdCreateIndexConstraint
IF (@Fl_Debug = 0) EXEC(@CmdCreateIndexConstraint)
PRINT '---------- Recriando as FKs'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateFK)), '') IS NOT NULL) PRINT @CmdCreateFK
IF (@Fl_Debug = 0) EXEC(@CmdCreateFK)

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SET NOCOUNT ON

-------------------------------------------------------------------------

-- Identifica as colunas com collation diferente do padrão do database conectado

-------------------------------------------------------------------------

IF (OBJECT_ID('tempdb..#Colunas') IS NOT NULL) DROP TABLE #Colunas

SELECT

B.[object_id] AS table_object_id,

B.[name] AS table_name,

B.[schema_id] AS table_schema_id,

C.[name] AS [type_name],

D.[name] AS [schema_name],

D.[schema_id],

A.*,

C.system_type_id AS type_system_type_id,

C.user_type_id AS type_user_type_id,

C.collation_name AS type_collation_name,

E.collation_name AS [database_default_collation]

INTO

#Colunas

FROM

sys.columns AS A

JOIN sys.tables AS B ON A.[object_id] = B.[object_id]

JOIN sys.types AS C ON A.user_type_id = C.user_type_id

JOIN sys.schemas AS D ON B.[schema_id] = D.[schema_id]

JOIN sys.databases AS E ON E.database_id = DB_ID()

WHERE

B.is_ms_shipped = 0

AND A.collation_name <> E.collation_name COLLATE DATABASE_DEFAULT

IF (OBJECT_ID('tempdb..#Tabelas') IS NOT NULL) DROP table #Tabelas

SELECT DISTINCT

table_object_id,

table_name,

table_schema_id,

[schema_name]

INTO

#Tabelas

FROM

#Colunas

-------------------------------------------------------------------------

-- Identifica os índices que utilizam essas colunas

-------------------------------------------------------------------------

IF (OBJECT_ID('tempdb..#Indices') IS NOT NULL) DROP TABLE #Indices

SELECT

A.*,

B.[name] AS index_name,

B.[type],

B.[type_desc],

B.is_unique,

B.is_primary_key,

B.is_unique_constraint,

B.is_disabled

INTO

#Indices

FROM

#Colunas A

JOIN sys.indexes B ON A.table_object_id = B.[object_id]

WHERE

EXISTS(SELECT NULL FROM sys.index_columns X WHERE X.index_id = B.index_id AND X.column_id = A.column_id)

IF (OBJECT_ID('tempdb..#Indices_Alteracao') IS NOT NULL) DROP TABLE #Indices_Alteracao

SELECT DISTINCT

table_object_id,

table_schema_id,

table_name,

[schema_name],

type_collation_name,

database_default_collation,

index_name,

is_unique_constraint,

is_primary_key

INTO

#Indices_Alteracao

FROM

#Indices

-------------------------------------------------------------------------

-- Gera os scripts

-------------------------------------------------------------------------

DECLARE

@CmdAlterTable VARCHAR(MAX) = '',

@CmdDropIndex VARCHAR(MAX) = '',

@CmdCreateIndex VARCHAR(MAX) = '',

@CmdDropFK VARCHAR(MAX) = '',

@CmdCreateFK VARCHAR(MAX) = '',

@CmdDropIndexConstraint VARCHAR(MAX) = '',

@CmdCreateIndexConstraint VARCHAR(MAX) = '',

@CmdDisableCK VARCHAR(MAX) = '',

@CmdEnableCK VARCHAR(MAX) = '',

@Fl_Debug BIT = 1

SELECT

@CmdDropIndex += (CASE WHEN is_unique_constraint = 0 AND is_primary_key = 0 THEN 'DROP INDEX [' + index_name + '] ON [' + [schema_name] + '].[' + table_name + ']; ' ELSE '' END),

@CmdDropIndexConstraint += (CASE WHEN is_unique_constraint = 1 OR is_primary_key = 1 THEN 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] DROP CONSTRAINT [' + index_name + ']; ' ELSE '' END),

@CmdDisableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] NOCHECK CONSTRAINT ALL; ',

@CmdEnableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] CHECK CONSTRAINT ALL; '

FROM

#Indices_Alteracao

-------------------------------------------------------------------------

-- Identifica AS FK's que utilizam essas colunas

-------------------------------------------------------------------------

SELECT

@CmdDropFK += N'ALTER TABLE ' + QUOTENAME(C.[name]) + '.' + QUOTENAME(B.[name]) + ' DROP CONSTRAINT ' + QUOTENAME(A.[name]) + ';'

FROM

sys.foreign_keys AS A

JOIN sys.tables AS B ON A.parent_object_id = B.[object_id]

JOIN sys.schemas AS C ON B.[schema_id] = C.[schema_id]

JOIN #Tabelas AS D ON B.[object_id] = D.table_object_id

SELECT

@CmdCreateFK += N'ALTER TABLE ' + QUOTENAME(H.[name]) + '.' + QUOTENAME(G.[name]) + ' ADD CONSTRAINT ' + QUOTENAME(D.[name]) + ' FOREIGN KEY (' +

STUFF((

SELECT

',' + QUOTENAME(A.[name])

FROM

sys.columns AS A

INNER JOIN sys.foreign_key_columns AS B ON B.parent_column_id = A.column_id AND B.parent_object_id = A.[object_id]

WHERE

B.constraint_object_id = D.[object_id]

ORDER BY

B.constraint_column_id

FOR XML PATH(N''), TYPE).value(N'.[1]', N'nvarchar(max)'), 1, 1, N'') + ') REFERENCES ' + QUOTENAME(F.[name]) + '.' + QUOTENAME(E.[name]) + '(' +

STUFF((

SELECT

',' + QUOTENAME(C.[name])

FROM

sys.columns AS C

INNER JOIN sys.foreign_key_columns AS fkc ON fkc.referenced_column_id = C.column_id AND fkc.referenced_object_id = C.[object_id]

WHERE

fkc.constraint_object_id = D.[object_id]

ORDER BY

fkc.constraint_column_id

FOR XML PATH(N''), TYPE

).value(N'.[1]', N'nvarchar(max)'), 1, 1, N''

) + ');'

FROM

sys.foreign_keys AS D

JOIN sys.tables AS E ON D.referenced_object_id = E.[object_id]

JOIN sys.schemas AS F ON E.[schema_id] = F.[schema_id]

JOIN sys.tables AS G ON D.parent_object_id = G.[object_id]

JOIN sys.schemas AS H ON G.[schema_id] = H.[schema_id]

JOIN #Tabelas AS I ON G.[object_id] = I.table_object_id

WHERE

E.is_ms_shipped = 0

AND G.is_ms_shipped = 0

SELECT

@CmdCreateIndex += (CASE WHEN B.is_unique_constraint = 0 AND B.is_primary_key = 0 THEN 'CREATE ' + (CASE WHEN B.is_unique = 1 THEN 'UNIQUE ' ELSE '' END) + B.[type_desc] COLLATE DATABASE_DEFAULT + ' INDEX [' + B.[name] + '] ON [' + SCHEMA_NAME(C.[schema_id]) + '].[' + C.[name] + '] (' + E.KeyColumns + ')' + ISNULL(' INCLUDE (' + I.IncludedColumns + ')', '') + ISNULL(' WHERE ' + B.filter_definition, '') + ' WITH (' + CASE WHEN B.is_padded = 1 THEN 'PAD_INDEX = ON' ELSE 'PAD_INDEX = OFF' END + ', ' + 'FILLFACTOR = ' + CONVERT(VARCHAR(5), CASE WHEN B.fill_factor = 0 THEN 100 ELSE B.fill_factor END) + ', ' +

'SORT_IN_TEMPDB = OFF, ' + (CASE WHEN B.[ignore_dup_key] = 1 THEN 'IGNORE_DUP_KEY = ON' ELSE 'IGNORE_DUP_KEY = OFF' END) + ', ' + (CASE WHEN F.no_recompute = 0 THEN 'STATISTICS_NORECOMPUTE = OFF' ELSE 'STATISTICS_NORECOMPUTE = ON' END) + ', ' +

'ONLINE = OFF, DATA_COMPRESSION = PAGE, ' + (CASE WHEN B.[allow_row_locks] = 1 THEN 'ALLOW_ROW_LOCKS = ON' ELSE 'ALLOW_ROW_LOCKS = OFF' END) + ', ' + (CASE WHEN B.[allow_page_locks] = 1 THEN 'ALLOW_PAGE_LOCKS = ON' ELSE 'ALLOW_PAGE_LOCKS = OFF' END) + ') ON [' + G.[name] + ']; ' ELSE '' END),

@CmdCreateIndexConstraint += (CASE WHEN B.is_unique_constraint = 1 OR B.is_primary_key = 1 THEN 'ALTER TABLE [' + A.[schema_name] + '].[' + A.table_name + '] ADD CONSTRAINT [' + A.index_name + '] ' + (CASE WHEN B.is_primary_key = 1 THEN 'PRIMARY KEY ' ELSE '' END) + (CASE WHEN B.is_unique = 1 AND B.is_primary_key = 0 THEN 'UNIQUE ' ELSE '' END) + B.[type_desc] COLLATE DATABASE_DEFAULT + ' (' + E.KeyColumns + ')' + ISNULL(' INCLUDE (' + I.IncludedColumns + ')', '') + ISNULL(' WHERE ' + B.filter_definition, '') + ' WITH (' + CASE WHEN B.is_padded = 1 THEN 'PAD_INDEX = ON' ELSE 'PAD_INDEX = OFF' END + ', ' + 'FILLFACTOR = ' + CONVERT(VARCHAR(5), CASE WHEN B.fill_factor = 0 THEN 100 ELSE B.fill_factor END) + ', ' +

FROM

#Indices_Alteracao AS A

JOIN sys.indexes AS B ON A.table_object_id = B.[object_id] AND A.index_name = B.[name] COLLATE DATABASE_DEFAULT

JOIN sys.tables AS C ON C.[object_id] = B.[object_id]

JOIN sys.indexes AS D ON B.[object_id] = D.[object_id] AND B.index_id = D.index_id

JOIN

(

SELECT

FROM

(

SELECT

X3.[object_id],

X3.index_id,

STUFF((

SELECT

', [' + X2.[name] + ']' + CASE WHEN MAX(CONVERT(INT, X1.is_descending_key)) = 1 THEN ' DESC' ELSE '' END

FROM

sys.index_columns AS X1

JOIN sys.columns AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 0

WHERE

X1.[object_id] = X3.[object_id]

AND X1.index_id = X3.index_id

GROUP BY

X1.[object_id],

X2.[name],

X1.index_id

ORDER BY

MAX(X1.key_ordinal)

FOR XML PATH('')

), 1, 2, ''

) AS KeyColumns

FROM

sys.index_columns AS X3

GROUP BY

X3.[object_id],

X3.index_id

) AS X4

) AS E ON B.[object_id] = E.[object_id] AND B.index_id = E.index_id

JOIN sys.stats AS F ON F.[object_id] = B.[object_id] AND F.stats_id = B.index_id

JOIN sys.data_spaces AS G ON B.data_space_id = G.data_space_id

JOIN sys.filegroups AS H ON B.data_space_id = H.data_space_id

LEFT JOIN

(

SELECT

FROM

(

SELECT

X3.[object_id],

X3.index_id,

STUFF((

SELECT

', [' + X2.[name] + ']'

FROM

sys.index_columns AS X1

JOIN sys.columns AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 1

WHERE

X1.[object_id] = X3.[object_id]

AND X1.index_id = X3.index_id

GROUP BY

X1.[object_id],

X2.[name],

X1.index_id

FOR XML PATH('')

), 1, 2, ''

) AS IncludedColumns

FROM

sys.index_columns AS X3

GROUP BY

X3.[object_id],

X3.index_id

) AS tmp1

WHERE

IncludedColumns IS NOT NULL

) AS I ON I.[object_id] = B.[object_id] AND I.index_id = B.index_id

SELECT

@CmdAlterTable += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] ALTER COLUMN [' + [name] + '] ' + UPPER([type_name]) + (CASE WHEN UPPER([type_name]) <> 'SYSNAME' THEN '(' + (CASE WHEN A.max_length > 0 THEN CAST(A.max_length AS VARCHAR(10)) ELSE 'MAX' END) + ')' ELSE '' END) + ' COLLATE ' + [database_default_collation] + ' ' + (CASE WHEN A.is_sparse = 1 THEN 'SPARSE ' ELSE '' END) + (CASE WHEN A.is_nullable = 1 THEN 'NULL' ELSE 'NOT NULL' END) + ';'

FROM

#Colunas A

-------------------------------------------------------------------------

-- Executa os scripts

-------------------------------------------------------------------------

PRINT '---------- Dropando as contraints FK'

IF (NULLIF(LTRIM(RTRIM(@CmdDropFK)), '') IS NOT NULL) PRINT @CmdDropFK

IF (@Fl_Debug = 0) EXEC(@CmdDropFK)

PRINT '---------- Desativando as Check Contraints'

IF (NULLIF(LTRIM(RTRIM(@CmdDisableCK)), '') IS NOT NULL) PRINT @CmdDisableCK

IF (@Fl_Debug = 0) EXEC(@CmdDisableCK)

PRINT '---------- Dropando os índices'

IF (NULLIF(LTRIM(RTRIM(@CmdDropIndex)), '') IS NOT NULL) PRINT @CmdDropIndex

IF (@Fl_Debug = 0) EXEC(@CmdDropIndex)

PRINT '---------- Dropando os índices em constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdDropIndexConstraint)), '') IS NOT NULL) PRINT @CmdDropIndexConstraint

IF (@Fl_Debug = 0) EXEC(@CmdDropIndexConstraint)

PRINT '---------- Alterando a tabela'

IF (NULLIF(LTRIM(RTRIM(@CmdAlterTable)), '') IS NOT NULL) PRINT @CmdAlterTable

IF (@Fl_Debug = 0) EXEC(@CmdAlterTable)

PRINT '---------- Reativando as constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdEnableCK)), '') IS NOT NULL) PRINT @CmdEnableCK

IF (@Fl_Debug = 0) EXEC(@CmdEnableCK)

PRINT '---------- Recriando os índices'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndex)), '') IS NOT NULL) PRINT @CmdCreateIndex

IF (@Fl_Debug = 0) EXEC(@CmdCreateIndex)

PRINT '---------- Recriando os índices em constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndexConstraint)), '') IS NOT NULL) PRINT @CmdCreateIndexConstraint

IF (@Fl_Debug = 0) EXEC(@CmdCreateIndexConstraint)

PRINT '---------- Recriando as FKs'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateFK)), '') IS NOT NULL) PRINT @CmdCreateFK

IF (@Fl_Debug = 0) EXEC(@CmdCreateFK)

Script para alterar o collation de todas as colunas (e dependências) de acordo com o Collation desejado:
Visualizar código-fonte

SET NOCOUNT ON
-------------------------------------------------------------------------
-- Identifica as colunas com collation diferente do desejado
-------------------------------------------------------------------------
DECLARE
@Collation_Desejado VARCHAR(100) = 'SQL_Latin1_General_CP1_CI_AI' -- SELECT * FROM sys.fn_helpcollations()
IF (OBJECT_ID('tempdb..#Colunas') IS NOT NULL) DROP TABLE #Colunas
SELECT
B.[object_id] AS table_object_id,
B.[name] AS table_name,
B.[schema_id] AS table_schema_id,
C.[name] AS [type_name],
D.[name] AS [schema_name],
D.[schema_id],
A.*,
C.system_type_id AS type_system_type_id,
C.user_type_id AS type_user_type_id,
C.collation_name AS type_collation_name,
E.collation_name AS [database_default_collation]
INTO
#Colunas
FROM
sys.columns		            AS A
JOIN sys.tables	            AS B ON A.[object_id] = B.[object_id]
JOIN sys.types		        AS C ON A.user_type_id = C.user_type_id
JOIN sys.schemas	        AS D ON B.[schema_id] = D.[schema_id]
JOIN sys.databases	        AS E ON E.database_id = DB_ID()
WHERE
B.is_ms_shipped = 0
AND A.collation_name <> @Collation_Desejado
IF (OBJECT_ID('tempdb..#Tabelas') IS NOT NULL) DROP table #Tabelas
SELECT DISTINCT
table_object_id,
table_name,
table_schema_id,
[schema_name]
INTO
#Tabelas
FROM
#Colunas
-------------------------------------------------------------------------
-- Identifica os índices que utilizam essas colunas
-------------------------------------------------------------------------
IF (OBJECT_ID('tempdb..#Indices') IS NOT NULL) DROP TABLE #Indices
SELECT 
A.*,
B.[name] AS index_name,
B.[type],
B.[type_desc],
B.is_unique,
B.is_primary_key,
B.is_unique_constraint,
B.is_disabled
INTO 
#Indices
FROM
#Colunas A
JOIN sys.indexes B ON A.table_object_id = B.[object_id]
WHERE
EXISTS(SELECT NULL FROM sys.index_columns X WHERE X.index_id = B.index_id AND X.column_id = A.column_id)
IF (OBJECT_ID('tempdb..#Indices_Alteracao') IS NOT NULL) DROP TABLE #Indices_Alteracao
SELECT DISTINCT
table_object_id,
table_schema_id,
table_name,
[schema_name],
type_collation_name,
database_default_collation,
index_name,
is_unique_constraint,
is_primary_key
INTO
#Indices_Alteracao
FROM
#Indices
-------------------------------------------------------------------------
-- Gera os scripts
-------------------------------------------------------------------------
DECLARE 
@CmdAlterTable VARCHAR(MAX) = '',
@CmdDropIndex VARCHAR(MAX) = '',
@CmdCreateIndex VARCHAR(MAX) = '',
@CmdDropFK VARCHAR(MAX) = '',
@CmdCreateFK VARCHAR(MAX) = '',
@CmdDropIndexConstraint VARCHAR(MAX) = '',
@CmdCreateIndexConstraint VARCHAR(MAX) = '',
@CmdDisableCK VARCHAR(MAX) = '',
@CmdEnableCK VARCHAR(MAX) = '',
@Fl_Debug BIT = 1
SELECT 
@CmdDropIndex += (CASE WHEN is_unique_constraint = 0 AND is_primary_key = 0 THEN 'DROP INDEX [' + index_name + '] ON [' + [schema_name] + '].[' + table_name + ']; ' ELSE '' END),
@CmdDropIndexConstraint += (CASE WHEN is_unique_constraint = 1 OR is_primary_key = 1 THEN 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] DROP CONSTRAINT [' + index_name + ']; ' ELSE '' END),
@CmdDisableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] NOCHECK CONSTRAINT ALL; ',
@CmdEnableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] CHECK CONSTRAINT ALL; '
FROM
#Indices_Alteracao
-------------------------------------------------------------------------
-- Identifica AS FK's que utilizam essas colunas
-------------------------------------------------------------------------
SELECT
@CmdDropFK += N'ALTER TABLE ' + QUOTENAME(C.[name]) + '.' + QUOTENAME(B.[name]) + ' DROP CONSTRAINT ' + QUOTENAME(A.[name]) + ';'
FROM
sys.foreign_keys AS A
JOIN sys.tables AS B ON A.parent_object_id = B.[object_id]
JOIN sys.schemas AS C ON B.[schema_id] = C.[schema_id]
JOIN #Tabelas AS D ON B.[object_id] = D.table_object_id
SELECT
@CmdCreateFK += N'ALTER TABLE ' + QUOTENAME(H.[name]) + '.' + QUOTENAME(G.[name]) + ' ADD CONSTRAINT ' + QUOTENAME(D.[name]) + ' FOREIGN KEY (' + 
STUFF((
SELECT
',' + QUOTENAME(A.[name])
FROM
sys.columns AS A
INNER JOIN sys.foreign_key_columns AS B ON B.parent_column_id = A.column_id AND B.parent_object_id = A.[object_id]
WHERE
B.constraint_object_id = D.[object_id]
ORDER BY
B.constraint_column_id
FOR XML PATH(N''), TYPE).value(N'.[1]', N'nvarchar(max)'), 1, 1, N'') + ') REFERENCES ' + QUOTENAME(F.[name]) + '.' + QUOTENAME(E.[name]) + '(' + 
STUFF((
SELECT
',' + QUOTENAME(C.[name])
FROM
sys.columns AS C
INNER JOIN sys.foreign_key_columns AS fkc ON fkc.referenced_column_id = C.column_id AND fkc.referenced_object_id = C.[object_id]
WHERE
fkc.constraint_object_id = D.[object_id]
ORDER BY
fkc.constraint_column_id
FOR XML PATH(N''), TYPE
).value(N'.[1]', N'nvarchar(max)'), 1, 1, N''
) + ');'
FROM
sys.foreign_keys AS D
JOIN sys.tables AS E ON D.referenced_object_id = E.[object_id]
JOIN sys.schemas AS F ON E.[schema_id] = F.[schema_id]
JOIN sys.tables AS G ON D.parent_object_id = G.[object_id]
JOIN sys.schemas AS H ON G.[schema_id] = H.[schema_id]
JOIN #Tabelas AS I ON G.[object_id] = I.table_object_id
WHERE
E.is_ms_shipped = 0
AND G.is_ms_shipped = 0
SELECT
@CmdCreateIndex += (CASE WHEN B.is_unique_constraint = 0 AND B.is_primary_key = 0 THEN 'CREATE ' + (CASE WHEN B.is_unique = 1 THEN 'UNIQUE ' ELSE '' END) + B.[type_desc] COLLATE DATABASE_DEFAULT + ' INDEX [' + B.[name] + '] ON [' + SCHEMA_NAME(C.[schema_id]) + '].[' + C.[name] + '] (' + E.KeyColumns + ')' + ISNULL(' INCLUDE (' + I.IncludedColumns + ')', '') + ISNULL(' WHERE ' + B.filter_definition, '') + ' WITH (' + CASE WHEN B.is_padded = 1 THEN 'PAD_INDEX = ON' ELSE 'PAD_INDEX = OFF' END + ', ' + 'FILLFACTOR = ' + CONVERT(VARCHAR(5), CASE WHEN B.fill_factor = 0 THEN 100 ELSE B.fill_factor END) + ', ' +
'SORT_IN_TEMPDB = OFF, ' + (CASE WHEN B.[ignore_dup_key] = 1 THEN 'IGNORE_DUP_KEY = ON' ELSE 'IGNORE_DUP_KEY = OFF' END) + ', ' + (CASE WHEN F.no_recompute = 0 THEN 'STATISTICS_NORECOMPUTE = OFF' ELSE 'STATISTICS_NORECOMPUTE = ON' END) + ', ' +
'ONLINE = OFF, DATA_COMPRESSION = PAGE, ' + (CASE WHEN B.[allow_row_locks] = 1 THEN 'ALLOW_ROW_LOCKS = ON' ELSE 'ALLOW_ROW_LOCKS = OFF' END) + ', ' + (CASE WHEN B.[allow_page_locks] = 1 THEN 'ALLOW_PAGE_LOCKS = ON' ELSE 'ALLOW_PAGE_LOCKS = OFF' END) + ') ON [' + G.[name] + ']; ' ELSE '' END),
@CmdCreateIndexConstraint += (CASE WHEN B.is_unique_constraint = 1 OR B.is_primary_key = 1 THEN 'ALTER TABLE [' + A.[schema_name] + '].[' + A.table_name + '] ADD CONSTRAINT [' + A.index_name + '] ' + (CASE WHEN B.is_primary_key = 1 THEN 'PRIMARY KEY ' ELSE '' END) + (CASE WHEN B.is_unique = 1 AND B.is_primary_key = 0 THEN 'UNIQUE ' ELSE '' END) + B.[type_desc] COLLATE DATABASE_DEFAULT + ' (' + E.KeyColumns + ')' + ISNULL(' INCLUDE (' + I.IncludedColumns + ')', '') + ISNULL(' WHERE ' + B.filter_definition, '') + ' WITH (' + CASE WHEN B.is_padded = 1 THEN 'PAD_INDEX = ON' ELSE 'PAD_INDEX = OFF' END + ', ' + 'FILLFACTOR = ' + CONVERT(VARCHAR(5), CASE WHEN B.fill_factor = 0 THEN 100 ELSE B.fill_factor END) + ', ' +
'SORT_IN_TEMPDB = OFF, ' + (CASE WHEN B.[ignore_dup_key] = 1 THEN 'IGNORE_DUP_KEY = ON' ELSE 'IGNORE_DUP_KEY = OFF' END) + ', ' + (CASE WHEN F.no_recompute = 0 THEN 'STATISTICS_NORECOMPUTE = OFF' ELSE 'STATISTICS_NORECOMPUTE = ON' END) + ', ' +
'ONLINE = OFF, DATA_COMPRESSION = PAGE, ' + (CASE WHEN B.[allow_row_locks] = 1 THEN 'ALLOW_ROW_LOCKS = ON' ELSE 'ALLOW_ROW_LOCKS = OFF' END) + ', ' + (CASE WHEN B.[allow_page_locks] = 1 THEN 'ALLOW_PAGE_LOCKS = ON' ELSE 'ALLOW_PAGE_LOCKS = OFF' END) + ') ON [' + G.[name] + ']; ' ELSE '' END)
FROM
#Indices_Alteracao	AS A
JOIN sys.indexes    AS B ON A.table_object_id = B.[object_id] AND A.index_name = B.[name] COLLATE DATABASE_DEFAULT
JOIN sys.tables     AS C ON C.[object_id] = B.[object_id]
JOIN sys.indexes	AS D ON B.[object_id] = D.[object_id] AND B.index_id = D.index_id
JOIN
(
SELECT
*
FROM
(
SELECT
X3.[object_id],
X3.index_id,
STUFF((
SELECT
', [' + X2.[name] + ']' + CASE WHEN MAX(CONVERT(INT, X1.is_descending_key)) = 1 THEN ' DESC' ELSE '' END
FROM
sys.index_columns AS X1
JOIN sys.columns  AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 0
WHERE
X1.[object_id] = X3.[object_id]
AND X1.index_id = X3.index_id
GROUP BY
X1.[object_id],
X2.[name],
X1.index_id
ORDER BY
MAX(X1.key_ordinal)
FOR XML PATH('')
),   1, 2, ''
) AS KeyColumns
FROM
sys.index_columns AS X3
GROUP BY
X3.[object_id],
X3.index_id
) AS X4
)                    AS E ON B.[object_id] = E.[object_id] AND B.index_id = E.index_id
JOIN sys.stats       AS F ON F.[object_id] = B.[object_id] AND F.stats_id = B.index_id
JOIN sys.data_spaces AS G ON B.data_space_id = G.data_space_id
JOIN sys.filegroups  AS H ON B.data_space_id = H.data_space_id
LEFT JOIN
(
SELECT
*
FROM
(
SELECT
X3.[object_id],
X3.index_id,
STUFF((
SELECT
', [' + X2.[name] + ']'
FROM
sys.index_columns AS X1
JOIN sys.columns  AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 1
WHERE
X1.[object_id] = X3.[object_id]
AND X1.index_id = X3.index_id
GROUP BY
X1.[object_id],
X2.[name],
X1.index_id
FOR XML PATH('')
),   1, 2, ''
) AS IncludedColumns
FROM
sys.index_columns AS X3  
GROUP BY
X3.[object_id],
X3.index_id
) AS tmp1
WHERE
IncludedColumns IS NOT NULL
) AS I ON I.[object_id] = B.[object_id] AND I.index_id = B.index_id
SELECT
@CmdAlterTable += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] ALTER COLUMN [' + [name] + '] ' + UPPER([type_name]) + (CASE WHEN UPPER([type_name]) <> 'SYSNAME' THEN '(' + (CASE WHEN A.max_length > 0 THEN CAST(A.max_length AS VARCHAR(10)) ELSE 'MAX' END) + ')' ELSE '' END) + ' COLLATE ' + @Collation_Desejado + ' ' + (CASE WHEN A.is_sparse = 1 THEN 'SPARSE ' ELSE '' END) + (CASE WHEN A.is_nullable = 1 THEN 'NULL' ELSE 'NOT NULL' END) + ';'
FROM
#Colunas A
-------------------------------------------------------------------------
-- Executa os scripts
-------------------------------------------------------------------------
PRINT '---------- Dropando as contraints FK'
IF (NULLIF(LTRIM(RTRIM(@CmdDropFK)), '') IS NOT NULL) PRINT @CmdDropFK
IF (@Fl_Debug = 0) EXEC(@CmdDropFK)
PRINT '---------- Desativando as Check Contraints'
IF (NULLIF(LTRIM(RTRIM(@CmdDisableCK)), '') IS NOT NULL) PRINT @CmdDisableCK
IF (@Fl_Debug = 0) EXEC(@CmdDisableCK)
PRINT '---------- Dropando os índices'
IF (NULLIF(LTRIM(RTRIM(@CmdDropIndex)), '') IS NOT NULL) PRINT @CmdDropIndex
IF (@Fl_Debug = 0) EXEC(@CmdDropIndex)
PRINT '---------- Dropando os índices em constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdDropIndexConstraint)), '') IS NOT NULL) PRINT @CmdDropIndexConstraint
IF (@Fl_Debug = 0) EXEC(@CmdDropIndexConstraint)
PRINT '---------- Alterando a tabela'
IF (NULLIF(LTRIM(RTRIM(@CmdAlterTable)), '') IS NOT NULL) PRINT @CmdAlterTable
IF (@Fl_Debug = 0) EXEC(@CmdAlterTable)
PRINT '---------- Reativando as constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdEnableCK)), '') IS NOT NULL) PRINT @CmdEnableCK
IF (@Fl_Debug = 0) EXEC(@CmdEnableCK)
PRINT '---------- Recriando os índices'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndex)), '') IS NOT NULL) PRINT @CmdCreateIndex
IF (@Fl_Debug = 0) EXEC(@CmdCreateIndex)
PRINT '---------- Recriando os índices em constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndexConstraint)), '') IS NOT NULL) PRINT @CmdCreateIndexConstraint
IF (@Fl_Debug = 0) EXEC(@CmdCreateIndexConstraint)
PRINT '---------- Recriando as FKs'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateFK)), '') IS NOT NULL) PRINT @CmdCreateFK
IF (@Fl_Debug = 0) EXEC(@CmdCreateFK)

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SET NOCOUNT ON

-------------------------------------------------------------------------

-- Identifica as colunas com collation diferente do desejado

-------------------------------------------------------------------------

DECLARE

@Collation_Desejado VARCHAR(100) = 'SQL_Latin1_General_CP1_CI_AI' -- SELECT * FROM sys.fn_helpcollations()

IF (OBJECT_ID('tempdb..#Colunas') IS NOT NULL) DROP TABLE #Colunas

SELECT

B.[object_id] AS table_object_id,

B.[name] AS table_name,

B.[schema_id] AS table_schema_id,

C.[name] AS [type_name],

D.[name] AS [schema_name],

D.[schema_id],

A.*,

C.system_type_id AS type_system_type_id,

C.user_type_id AS type_user_type_id,

C.collation_name AS type_collation_name,

E.collation_name AS [database_default_collation]

INTO

#Colunas

FROM

sys.columns AS A

JOIN sys.tables AS B ON A.[object_id] = B.[object_id]

JOIN sys.types AS C ON A.user_type_id = C.user_type_id

JOIN sys.schemas AS D ON B.[schema_id] = D.[schema_id]

JOIN sys.databases AS E ON E.database_id = DB_ID()

WHERE

B.is_ms_shipped = 0

AND A.collation_name <> @Collation_Desejado

IF (OBJECT_ID('tempdb..#Tabelas') IS NOT NULL) DROP table #Tabelas

SELECT DISTINCT

table_object_id,

table_name,

table_schema_id,

[schema_name]

INTO

#Tabelas

FROM

#Colunas

-------------------------------------------------------------------------

-- Identifica os índices que utilizam essas colunas

-------------------------------------------------------------------------

IF (OBJECT_ID('tempdb..#Indices') IS NOT NULL) DROP TABLE #Indices

SELECT

A.*,

B.[name] AS index_name,

B.[type],

B.[type_desc],

B.is_unique,

B.is_primary_key,

B.is_unique_constraint,

B.is_disabled

INTO

#Indices

FROM

#Colunas A

JOIN sys.indexes B ON A.table_object_id = B.[object_id]

WHERE

EXISTS(SELECT NULL FROM sys.index_columns X WHERE X.index_id = B.index_id AND X.column_id = A.column_id)

IF (OBJECT_ID('tempdb..#Indices_Alteracao') IS NOT NULL) DROP TABLE #Indices_Alteracao

SELECT DISTINCT

table_object_id,

table_schema_id,

table_name,

[schema_name],

type_collation_name,

database_default_collation,

index_name,

is_unique_constraint,

is_primary_key

INTO

#Indices_Alteracao

FROM

#Indices

-------------------------------------------------------------------------

-- Gera os scripts

-------------------------------------------------------------------------

DECLARE

@CmdAlterTable VARCHAR(MAX) = '',

@CmdDropIndex VARCHAR(MAX) = '',

@CmdCreateIndex VARCHAR(MAX) = '',

@CmdDropFK VARCHAR(MAX) = '',

@CmdCreateFK VARCHAR(MAX) = '',

@CmdDropIndexConstraint VARCHAR(MAX) = '',

@CmdCreateIndexConstraint VARCHAR(MAX) = '',

@CmdDisableCK VARCHAR(MAX) = '',

@CmdEnableCK VARCHAR(MAX) = '',

@Fl_Debug BIT = 1

SELECT

@CmdDropIndex += (CASE WHEN is_unique_constraint = 0 AND is_primary_key = 0 THEN 'DROP INDEX [' + index_name + '] ON [' + [schema_name] + '].[' + table_name + ']; ' ELSE '' END),

@CmdDisableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] NOCHECK CONSTRAINT ALL; ',

@CmdEnableCK += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] CHECK CONSTRAINT ALL; '

FROM

#Indices_Alteracao

-------------------------------------------------------------------------

-- Identifica AS FK's que utilizam essas colunas

-------------------------------------------------------------------------

SELECT

@CmdDropFK += N'ALTER TABLE ' + QUOTENAME(C.[name]) + '.' + QUOTENAME(B.[name]) + ' DROP CONSTRAINT ' + QUOTENAME(A.[name]) + ';'

FROM

sys.foreign_keys AS A

JOIN sys.tables AS B ON A.parent_object_id = B.[object_id]

JOIN sys.schemas AS C ON B.[schema_id] = C.[schema_id]

JOIN #Tabelas AS D ON B.[object_id] = D.table_object_id

SELECT

@CmdCreateFK += N'ALTER TABLE ' + QUOTENAME(H.[name]) + '.' + QUOTENAME(G.[name]) + ' ADD CONSTRAINT ' + QUOTENAME(D.[name]) + ' FOREIGN KEY (' +

STUFF((

SELECT

',' + QUOTENAME(A.[name])

FROM

sys.columns AS A

INNER JOIN sys.foreign_key_columns AS B ON B.parent_column_id = A.column_id AND B.parent_object_id = A.[object_id]

WHERE

B.constraint_object_id = D.[object_id]

ORDER BY

B.constraint_column_id

FOR XML PATH(N''), TYPE).value(N'.[1]', N'nvarchar(max)'), 1, 1, N'') + ') REFERENCES ' + QUOTENAME(F.[name]) + '.' + QUOTENAME(E.[name]) + '(' +

STUFF((

SELECT

',' + QUOTENAME(C.[name])

FROM

sys.columns AS C

INNER JOIN sys.foreign_key_columns AS fkc ON fkc.referenced_column_id = C.column_id AND fkc.referenced_object_id = C.[object_id]

WHERE

fkc.constraint_object_id = D.[object_id]

ORDER BY

fkc.constraint_column_id

FOR XML PATH(N''), TYPE

).value(N'.[1]', N'nvarchar(max)'), 1, 1, N''

) + ');'

FROM

sys.foreign_keys AS D

JOIN sys.tables AS E ON D.referenced_object_id = E.[object_id]

JOIN sys.schemas AS F ON E.[schema_id] = F.[schema_id]

JOIN sys.tables AS G ON D.parent_object_id = G.[object_id]

JOIN sys.schemas AS H ON G.[schema_id] = H.[schema_id]

JOIN #Tabelas AS I ON G.[object_id] = I.table_object_id

WHERE

E.is_ms_shipped = 0

AND G.is_ms_shipped = 0

SELECT

FROM

#Indices_Alteracao AS A

JOIN sys.indexes AS B ON A.table_object_id = B.[object_id] AND A.index_name = B.[name] COLLATE DATABASE_DEFAULT

JOIN sys.tables AS C ON C.[object_id] = B.[object_id]

JOIN sys.indexes AS D ON B.[object_id] = D.[object_id] AND B.index_id = D.index_id

JOIN

(

SELECT

FROM

(

SELECT

X3.[object_id],

X3.index_id,

STUFF((

SELECT

', [' + X2.[name] + ']' + CASE WHEN MAX(CONVERT(INT, X1.is_descending_key)) = 1 THEN ' DESC' ELSE '' END

FROM

sys.index_columns AS X1

JOIN sys.columns AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 0

WHERE

X1.[object_id] = X3.[object_id]

AND X1.index_id = X3.index_id

GROUP BY

X1.[object_id],

X2.[name],

X1.index_id

ORDER BY

MAX(X1.key_ordinal)

FOR XML PATH('')

), 1, 2, ''

) AS KeyColumns

FROM

sys.index_columns AS X3

GROUP BY

X3.[object_id],

X3.index_id

) AS X4

) AS E ON B.[object_id] = E.[object_id] AND B.index_id = E.index_id

JOIN sys.stats AS F ON F.[object_id] = B.[object_id] AND F.stats_id = B.index_id

JOIN sys.data_spaces AS G ON B.data_space_id = G.data_space_id

JOIN sys.filegroups AS H ON B.data_space_id = H.data_space_id

LEFT JOIN

(

SELECT

FROM

(

SELECT

X3.[object_id],

X3.index_id,

STUFF((

SELECT

', [' + X2.[name] + ']'

FROM

sys.index_columns AS X1

JOIN sys.columns AS X2 ON X2.[object_id] = X1.[object_id] AND X2.column_id = X1.column_id AND X1.is_included_column = 1

WHERE

X1.[object_id] = X3.[object_id]

AND X1.index_id = X3.index_id

GROUP BY

X1.[object_id],

X2.[name],

X1.index_id

FOR XML PATH('')

), 1, 2, ''

) AS IncludedColumns

FROM

sys.index_columns AS X3

GROUP BY

X3.[object_id],

X3.index_id

) AS tmp1

WHERE

IncludedColumns IS NOT NULL

) AS I ON I.[object_id] = B.[object_id] AND I.index_id = B.index_id

SELECT

@CmdAlterTable += 'ALTER TABLE [' + [schema_name] + '].[' + table_name + '] ALTER COLUMN [' + [name] + '] ' + UPPER([type_name]) + (CASE WHEN UPPER([type_name]) <> 'SYSNAME' THEN '(' + (CASE WHEN A.max_length > 0 THEN CAST(A.max_length AS VARCHAR(10)) ELSE 'MAX' END) + ')' ELSE '' END) + ' COLLATE ' + @Collation_Desejado + ' ' + (CASE WHEN A.is_sparse = 1 THEN 'SPARSE ' ELSE '' END) + (CASE WHEN A.is_nullable = 1 THEN 'NULL' ELSE 'NOT NULL' END) + ';'

FROM

#Colunas A

-------------------------------------------------------------------------

-- Executa os scripts

-------------------------------------------------------------------------

PRINT '---------- Dropando as contraints FK'

IF (NULLIF(LTRIM(RTRIM(@CmdDropFK)), '') IS NOT NULL) PRINT @CmdDropFK

IF (@Fl_Debug = 0) EXEC(@CmdDropFK)

PRINT '---------- Desativando as Check Contraints'

IF (NULLIF(LTRIM(RTRIM(@CmdDisableCK)), '') IS NOT NULL) PRINT @CmdDisableCK

IF (@Fl_Debug = 0) EXEC(@CmdDisableCK)

PRINT '---------- Dropando os índices'

IF (NULLIF(LTRIM(RTRIM(@CmdDropIndex)), '') IS NOT NULL) PRINT @CmdDropIndex

IF (@Fl_Debug = 0) EXEC(@CmdDropIndex)

PRINT '---------- Dropando os índices em constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdDropIndexConstraint)), '') IS NOT NULL) PRINT @CmdDropIndexConstraint

IF (@Fl_Debug = 0) EXEC(@CmdDropIndexConstraint)

PRINT '---------- Alterando a tabela'

IF (NULLIF(LTRIM(RTRIM(@CmdAlterTable)), '') IS NOT NULL) PRINT @CmdAlterTable

IF (@Fl_Debug = 0) EXEC(@CmdAlterTable)

PRINT '---------- Reativando as constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdEnableCK)), '') IS NOT NULL) PRINT @CmdEnableCK

IF (@Fl_Debug = 0) EXEC(@CmdEnableCK)

PRINT '---------- Recriando os índices'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndex)), '') IS NOT NULL) PRINT @CmdCreateIndex

IF (@Fl_Debug = 0) EXEC(@CmdCreateIndex)

PRINT '---------- Recriando os índices em constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndexConstraint)), '') IS NOT NULL) PRINT @CmdCreateIndexConstraint

IF (@Fl_Debug = 0) EXEC(@CmdCreateIndexConstraint)

PRINT '---------- Recriando as FKs'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateFK)), '') IS NOT NULL) PRINT @CmdCreateFK

IF (@Fl_Debug = 0) EXEC(@CmdCreateFK)

Resultado:

Caso o script identifique muitas colunas para alterar e a saída do PRINT esteja ficando cortada por causa do tamanho das strings geradas, você pode utilizar a função fncSplitTexto, que disponibilizei no post Como quebrar um string em uma tabela de substrings utilizando um delimitador no SQL Server e substituir o final do script por esse trecho aqui:

-------------------------------------------------------------------------
-- Executa os scripts
-------------------------------------------------------------------------
PRINT '---------- Dropando as contraints FK'
IF (NULLIF(LTRIM(RTRIM(@CmdDropFK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDropFK, ';')
IF (@Fl_Debug = 0) EXEC(@CmdDropFK)
PRINT '---------- Desativando as Check Contraints'
IF (NULLIF(LTRIM(RTRIM(@CmdDisableCK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDisableCK, ';')
IF (@Fl_Debug = 0) EXEC(@CmdDisableCK)
PRINT '---------- Dropando os índices'
IF (NULLIF(LTRIM(RTRIM(@CmdDropIndex)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDropIndex, ';')
IF (@Fl_Debug = 0) EXEC(@CmdDropIndex)
PRINT '---------- Dropando os índices em constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdDropIndexConstraint)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDropIndexConstraint, ';')
IF (@Fl_Debug = 0) EXEC(@CmdDropIndexConstraint)
PRINT '---------- Alterando a tabela'
IF (NULLIF(LTRIM(RTRIM(@CmdAlterTable)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdAlterTable, ';')
IF (@Fl_Debug = 0) EXEC(@CmdAlterTable)
PRINT '---------- Reativando as constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdEnableCK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdEnableCK, ';')
IF (@Fl_Debug = 0) EXEC(@CmdEnableCK)
PRINT '---------- Recriando os índices'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndex)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdCreateIndex, ';')
IF (@Fl_Debug = 0) EXEC(@CmdCreateIndex)
PRINT '---------- Recriando os índices em constraints'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndexConstraint)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdCreateIndexConstraint, ';')
IF (@Fl_Debug = 0) EXEC(@CmdCreateIndexConstraint)
PRINT '---------- Recriando as FKs'
IF (NULLIF(LTRIM(RTRIM(@CmdCreateFK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdCreateFK, ';')
IF (@Fl_Debug = 0) EXEC(@CmdCreateFK)

-------------------------------------------------------------------------

-- Executa os scripts

-------------------------------------------------------------------------

PRINT '---------- Dropando as contraints FK'

IF (NULLIF(LTRIM(RTRIM(@CmdDropFK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDropFK, ';')

IF (@Fl_Debug = 0) EXEC(@CmdDropFK)

PRINT '---------- Desativando as Check Contraints'

IF (NULLIF(LTRIM(RTRIM(@CmdDisableCK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDisableCK, ';')

IF (@Fl_Debug = 0) EXEC(@CmdDisableCK)

PRINT '---------- Dropando os índices'

IF (NULLIF(LTRIM(RTRIM(@CmdDropIndex)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDropIndex, ';')

IF (@Fl_Debug = 0) EXEC(@CmdDropIndex)

PRINT '---------- Dropando os índices em constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdDropIndexConstraint)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdDropIndexConstraint, ';')

IF (@Fl_Debug = 0) EXEC(@CmdDropIndexConstraint)

PRINT '---------- Alterando a tabela'

IF (NULLIF(LTRIM(RTRIM(@CmdAlterTable)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdAlterTable, ';')

IF (@Fl_Debug = 0) EXEC(@CmdAlterTable)

PRINT '---------- Reativando as constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdEnableCK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdEnableCK, ';')

IF (@Fl_Debug = 0) EXEC(@CmdEnableCK)

PRINT '---------- Recriando os índices'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndex)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdCreateIndex, ';')

IF (@Fl_Debug = 0) EXEC(@CmdCreateIndex)

PRINT '---------- Recriando os índices em constraints'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateIndexConstraint)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdCreateIndexConstraint, ';')

IF (@Fl_Debug = 0) EXEC(@CmdCreateIndexConstraint)

PRINT '---------- Recriando as FKs'

IF (NULLIF(LTRIM(RTRIM(@CmdCreateFK)), '') IS NOT NULL) SELECT * FROM dirceuresende.dbo.fncSplitTexto(@CmdCreateFK, ';')

IF (@Fl_Debug = 0) EXEC(@CmdCreateFK)

Resultado:

Espero que tenham gostado desse post e até a próxima!
PS: Lembre de fazer o backup e testar BASTANTE se você planeja aplicar esse script em Produção.

Em caso de dúvidas ou problemas, deixe aqui nos comentários.

Tags: collation sql sql server

Virgílio disse:

1 de abril de 2021 às 20:34

Erro ao executar o penúltimo script:

Msg 7738, Level 16, State 2, Line 1
Cannot enable compression for object ‘xyz’. Only SQL Server Enterprise Edition supports compression.

Responder
Sergio Moreno disse:

25 de janeiro de 2021 às 13:07

Olá amigo, parabéns pela sua aula.. fantástica. Agora eu questiono: e quando você não pode alterar o collate mas precisa usar, por exemplo, consultas em dois bancos diferentes (tabelas com JOIN),as os collates são diferentes.. tem como apenas setar o collate, fazer a consulta, e deixar sem alterar ???

Responder
Edgar Mauricio S L disse:

22 de outubro de 2020 às 11:04

Dirceu,
Se na parte “Executa os scripts” eu comentar as linhas do EXEC -> “IF (@Fl_Debug = 0) EXEC(@CmdDropFK)” poderei ver todos os comandos ALTER TABLE, DROP etc sem que sejam executados? Isto porque tenho um database com muitas colunas fora do padrão da base mas gostaria de arrumar por grupos de tabelas relacionadas, e não todas de uma vez. Assim copiar e colaria dos comandos gerados só os que preciso.

Responder
EVANDRO SIMENES disse:

25 de setembro de 2020 às 14:34

Boa tarde
Muito obrigado pelo script, ajudou muito.
Segue algumas observacoes para ajudar quem precisar:

Se seu banco de dados possuir muitas chaves estrangeiras e voce tentar rodar este script apenas para algumas tabelas, pode ser que as alteracoes nao sejam efetuadas, uma vez que poderá haver chave estrangeira relacionada a tabela executada, porém pertencente a uma tabela do qual não foi relacionada no processamento do script.
– Execute o script sempre para o database todo.

Se estiver rodando este script num sqlserver express, os parametros abaixo devem ser removidos dos comandos de criacao dos indices/constraints:
Se não for removido, os indices não serão recriados porque estes parametros estao disponiveis apenas para versao enterprise do sqlserver.
– DATA_COMPRESSION = PAGE
– SORT_IN_TEMPDB = OFF

Se seu banco de dados for muito grande, as variaveis varchar(max) nao suportão concatenar tanta informacao e a string será cortada quando atingir 8000 caracteres….Para resolver esta questao, criei uma tabela com um campo chamado comando e outro chamado ordem, e alterei o script para ao invés de concatenar nas variaveis, inserir comando a comando nessa tabela de acordo com sua ordem de execucao e entao depois de inserido todos os comandos, criei outro script para varrer comando a comando dessa tabela e executá-lo.

Responder
Marcos disse:

26 de janeiro de 2020 às 18:00

Olá Dirceu.

Agradeço pelo tempo dedicado em disseminar conhecimento.

Eu executei esse procedimento mas infelizmente não funcionou.

O script até alterou collation do SQL SERVER mas DATABASE quero alterar as tabelas não funcionou.

Versão do SQL

Microsoft SQL Server 2012 (SP4) (KB4018073)

Tem alguma dica ?

Responder
Aldemir Fernandes disse:

25 de abril de 2019 às 01:37

Olá Dirceu.

Agradeço demais esse post. Porém estou com um problema. Quando executo seu script, ele executa certinho, porém não altera o collation das colunas.

No resultado, aponta como o script executado com sucesso.

Tem ideia do que pode ser?

Agradeço demais a ajuda.

Responder
- Dirceu Resende disse:
  
  19 de setembro de 2019 às 01:04
  
  Olá Almedir. Tudo bem?
  Ainda está com esse problema? Qualquer coisa me avisa.
  
  Responder
Kelvin Faria disse:

24 de setembro de 2018 às 15:22

Olá Dirceu, boa tarde!

Muito legal o post, porém tenho uma dúvida, no meu caso existem mais de 43mil colunas que precisam ser alteradas, portanto ao rodar o script o resultado do script ultrapassa o máximo permitido pelo campo “message” do management studio e acabo não vendo todos os comandos.

Tem alguma solução?
Obrigado desde já!

Responder
- Dirceu Resende disse:
  
  24 de setembro de 2018 às 19:33
  
  Fala Kelvin, beleza ?
  Editei o post para responder a sua dúvida..
  
  Qualquer coisa, é só falar!
  
  Responder
  - Kelvin Faria disse:
    
    27 de setembro de 2018 às 09:12
    
    Muito obrigado Dirceu!
    
    Responder

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