【发布时间】：2010-12-08 16:21:25
【问题描述】：
用什么SQL可以将指定表的schema复制到不同数据库的表中？
【问题讨论】：
-
这个问题可能写得不太好，但答案的数量表明它显然是有效的。所以让我们重新打开它。
标签： sql sql-server-2005 schema
【发布时间】：2010-12-08 16:21:25
【问题描述】：
SELECT INTO 将创建一个具有相同架构的新表。所以你可以：
SELECT *
INTO newdb.dbo.newtable
FROM olddb.dbo.oldtable
只复制架构而不是数据：
SELECT TOP 0 *
INTO newdb.dbo.newtable
FROM olddb.dbo.oldtable
这不会复制索引或键。要复制这些，请右键单击 SQL Sever Management Studio 中的表并选择“脚本表为”。这将为您提供一个可以在新数据库上运行的脚本。
【讨论】：
-
我已经尝试过了，但我还需要复制约束，我需要 sql 查询。谢谢你的帖子。
-
-1 这是不正确且危险的。这不会复制约束
-
它不复制约束！它只对简单的副本有用。
尝试使用 SQL SERVER SCRIPT WIZARD
1) 选择一个数据库
2）右键->任务->生成脚本
3) 点击下一步 -> 并在选择数据库屏幕中，选择表（将默认选中）。勾选“对选定数据库中的所有对象编写脚本”。
4) 单击完成。
希望对你有帮助
【讨论】：
当然是 2 年后，但想提供一个解决方案。此过程将表复制到“BackUp_
ALTER PROCEDURE dbo.Admin_CopyTable
@TableName NVARCHAR(255)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from interfering with SELECT statements.
SET NOCOUNT ON;
-- is there any work to do?
IF NOT (isNull(@TableName,'')='')
BEGIN
-- Get list of all tables that match the @TableName wildcard
DECLARE @tables TABLE (id BIGINT IDENTITY(1,1), [name] NVARCHAR(255)) -- using id as means to avoid cursor
INSERT INTO @tables SELECT table_name FROM information_schema.tables WHERE table_name LIKE '%' + @TableName + '%' AND table_name NOT LIKE 'BackUp_%' ORDER BY table_name
-- Go through each table and copy it
DECLARE @row BIGINT;
DECLARE @thisTable AS NVARCHAR(255);
DECLARE @dSQL NVARCHAR(4000); -- holds the SQL string to execute and copy table data
DECLARE @TablePrefix NVARCHAR(255); -- Name that is prepended before the name of the actual table to show it is a backup table
-- set default prefix by adding todays date to the table name
SELECT @TablePrefix = 'BackUp_' + CONVERT(NVARCHAR(10), GetDate(), 112) + '_'; -- Date as YYYYMMDD
-- Get first row for looping through list of tables
SELECT @row = MIN(id) FROM @tables;
WHILE (isNull(@row, 0) <> 0) -- returns null when no more rows, which gets converted to 0 (zero)
BEGIN
SELECT @thisTable = [name] FROM @tables where id = @row
IF NOT EXISTS(SELECT table_name FROM information_schema.tables WHERE table_name like @TablePrefix + @thisTable)
BEGIN
SET @dSQL = 'Select * Into ' + @TablePrefix + @thisTable + ' from ' + @thisTable;
EXEC (@dSQL)
PRINT @TablePrefix + @thisTable + ': Data Backed up.'
-- Copy the Primary Key into the Backup table
BEGIN
-- Get list of all the columns that make up the Primary Key
-- for composite PK's = one row per pk column
DECLARE @PKColsTbl table ([name] NVARCHAR(255), col NVARCHAR(255))
INSERT INTO @PKColsTbl
SELECT c.Constraint_Name, c.COLUMN_NAME
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk
,INFORMATION_SCHEMA.KEY_COLUMN_USAGE c
WHERE pk.TABLE_NAME = @thisTable
and CONSTRAINT_TYPE = 'PRIMARY KEY'
and c.TABLE_NAME = pk.TABLE_NAME
and c.CONSTRAINT_NAME = pk.CONSTRAINT_NAME
-- Transpose rows into one column as a comma delimeted string
DECLARE @pkCol NVARCHAR(255);
SELECT @pkCol = stuff((select ',' + col from @PKColsTbl for XML PATH('')), 1,1,'')
-- Build the dynamic SQL statement and execute it
SET @dSQL = 'ALTER TABLE ' + @TablePrefix + @thisTable + ' ADD CONSTRAINT ' + 'PK_' + @TablePrefix + @thisTable + ' PRIMARY KEY (' + @pkCol + ')'
EXEC (@dSQL)
PRINT @TablePrefix + @thisTable + ': PK Created.'
-- Since its a loop, clear out the table
DELETE FROM @PKColsTbl
END
-- END of Copying the Primary Key
END
ELSE
BEGIN
PRINT @TablePrefix + @thisTable + ': Exists!'
END
-- Get next row
SELECT @row = min(id) FROM @tables WHERE id > @row
END
END
END
【讨论】：
-
这也将备份名称部分匹配的表。例如“myTable”作为所需的备份表名也将备份“myTable1”、“myTableABC”等
-
除了 [dbo] 之外的模式怎么样？我有两个同名但架构不同的表！
我写了这个 sp 来自动创建包含所有东西的模式，pk，fk，分区，约束......
重要！ 执行前
create type TestTableType as table (ObjectID int)
这里是 SP：
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--*************************************************************************************************'
-- La procedura crea lo script di una tabella
--*************************************************************************************************'
alter PROCEDURE [dbo].[util_ScriptTable]
@DBName SYSNAME
,@schema sysname
,@TableName SYSNAME
,@IncludeConstraints BIT = 1
,@IncludeIndexes BIT = 1
,@NewTableSchema sysname
,@NewTableName SYSNAME = NULL
,@UseSystemDataTypes BIT = 0
,@script varchar(max) output
AS
BEGIN try
if not exists (select * from sys.types where name = 'TestTableType')
create type TestTableType as table (ObjectID int)--drop type TestTableType
declare @sql nvarchar(max)
DECLARE @MainDefinition TABLE (FieldValue VARCHAR(200))
--DECLARE @DBName SYSNAME
DECLARE @ClusteredPK BIT
DECLARE @TableSchema NVARCHAR(255)
--SET @DBName = DB_NAME(DB_ID())
SELECT @TableName = name FROM sysobjects WHERE id = OBJECT_ID(@TableName)
DECLARE @ShowFields TABLE (FieldID INT IDENTITY(1,1)
,DatabaseName VARCHAR(100)
,TableOwner VARCHAR(100)
,TableName VARCHAR(100)
,FieldName VARCHAR(100)
,ColumnPosition INT
,ColumnDefaultValue VARCHAR(100)
,ColumnDefaultName VARCHAR(100)
,IsNullable BIT
,DataType VARCHAR(100)
,MaxLength varchar(10)
,NumericPrecision INT
,NumericScale INT
,DomainName VARCHAR(100)
,FieldListingName VARCHAR(110)
,FieldDefinition CHAR(1)
,IdentityColumn BIT
,IdentitySeed INT
,IdentityIncrement INT
,IsCharColumn BIT
,IsComputed varchar(255))
DECLARE @HoldingArea TABLE(FldID SMALLINT IDENTITY(1,1)
,Flds VARCHAR(4000)
,FldValue CHAR(1) DEFAULT(0))
DECLARE @PKObjectID TABLE(ObjectID INT)
DECLARE @Uniques TABLE(ObjectID INT)
DECLARE @HoldingAreaValues TABLE(FldID SMALLINT IDENTITY(1,1)
,Flds VARCHAR(4000)
,FldValue CHAR(1) DEFAULT(0))
DECLARE @Definition TABLE(DefinitionID SMALLINT IDENTITY(1,1)
,FieldValue VARCHAR(200))
set @sql=
'
use '+@DBName+'
SELECT distinct DB_NAME()
,TABLE_SCHEMA
,TABLE_NAME
,''[''+COLUMN_NAME+'']'' as COLUMN_NAME
,CAST(ORDINAL_POSITION AS INT)
,COLUMN_DEFAULT
,dobj.name AS ColumnDefaultName
,CASE WHEN c.IS_NULLABLE = ''YES'' THEN 1 ELSE 0 END
,DATA_TYPE
,case CHARACTER_MAXIMUM_LENGTH when -1 then ''max'' else CAST(CHARACTER_MAXIMUM_LENGTH AS varchar) end--CAST(CHARACTER_MAXIMUM_LENGTH AS INT)
,CAST(NUMERIC_PRECISION AS INT)
,CAST(NUMERIC_SCALE AS INT)
,DOMAIN_NAME
,COLUMN_NAME + '',''
,'''' AS FieldDefinition
,CASE WHEN ic.object_id IS NULL THEN 0 ELSE 1 END AS IdentityColumn
,CAST(ISNULL(ic.seed_value,0) AS INT) AS IdentitySeed
,CAST(ISNULL(ic.increment_value,0) AS INT) AS IdentityIncrement
,CASE WHEN st.collation_name IS NOT NULL THEN 1 ELSE 0 END AS IsCharColumn
,cc.definition
FROM INFORMATION_SCHEMA.COLUMNS c
JOIN sys.columns sc ON c.TABLE_NAME = OBJECT_NAME(sc.object_id) AND c.COLUMN_NAME = sc.Name
LEFT JOIN sys.identity_columns ic ON c.TABLE_NAME = OBJECT_NAME(ic.object_id) AND c.COLUMN_NAME = ic.Name
JOIN sys.types st ON COALESCE(c.DOMAIN_NAME,c.DATA_TYPE) = st.name
LEFT OUTER JOIN sys.objects dobj ON dobj.object_id = sc.default_object_id AND dobj.type = ''D''
left join sys.computed_columns cc on c.TABLE_NAME=OBJECT_NAME(cc.object_id) and sc.column_id=cc.column_id
WHERE c.TABLE_NAME = @TableName and c.TABLE_SCHEMA=@schema
ORDER BY c.TABLE_NAME, c.ORDINAL_POSITION
'
print @sql
INSERT INTO @ShowFields( DatabaseName
,TableOwner
,TableName
,FieldName
,ColumnPosition
,ColumnDefaultValue
,ColumnDefaultName
,IsNullable
,DataType
,MaxLength
,NumericPrecision
,NumericScale
,DomainName
,FieldListingName
,FieldDefinition
,IdentityColumn
,IdentitySeed
,IdentityIncrement
,IsCharColumn
,IsComputed)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName,@schema=@schema
/*
SELECT @DBName--DB_NAME()
,TABLE_SCHEMA
,TABLE_NAME
,COLUMN_NAME
,CAST(ORDINAL_POSITION AS INT)
,COLUMN_DEFAULT
,dobj.name AS ColumnDefaultName
,CASE WHEN c.IS_NULLABLE = 'YES' THEN 1 ELSE 0 END
,DATA_TYPE
,CAST(CHARACTER_MAXIMUM_LENGTH AS INT)
,CAST(NUMERIC_PRECISION AS INT)
,CAST(NUMERIC_SCALE AS INT)
,DOMAIN_NAME
,COLUMN_NAME + ','
,'' AS FieldDefinition
,CASE WHEN ic.object_id IS NULL THEN 0 ELSE 1 END AS IdentityColumn
,CAST(ISNULL(ic.seed_value,0) AS INT) AS IdentitySeed
,CAST(ISNULL(ic.increment_value,0) AS INT) AS IdentityIncrement
,CASE WHEN st.collation_name IS NOT NULL THEN 1 ELSE 0 END AS IsCharColumn
FROM INFORMATION_SCHEMA.COLUMNS c
JOIN sys.columns sc ON c.TABLE_NAME = OBJECT_NAME(sc.object_id) AND c.COLUMN_NAME = sc.Name
LEFT JOIN sys.identity_columns ic ON c.TABLE_NAME = OBJECT_NAME(ic.object_id) AND c.COLUMN_NAME = ic.Name
JOIN sys.types st ON COALESCE(c.DOMAIN_NAME,c.DATA_TYPE) = st.name
LEFT OUTER JOIN sys.objects dobj ON dobj.object_id = sc.default_object_id AND dobj.type = 'D'
WHERE c.TABLE_NAME = @TableName
ORDER BY c.TABLE_NAME, c.ORDINAL_POSITION
*/
SELECT TOP 1 @TableSchema = TableOwner FROM @ShowFields
INSERT INTO @HoldingArea (Flds) VALUES('(')
INSERT INTO @Definition(FieldValue)VALUES('CREATE TABLE ' + CASE WHEN @NewTableName IS NOT NULL THEN @DBName + '.' + @NewTableSchema + '.' + @NewTableName ELSE @DBName + '.' + @TableSchema + '.' + @TableName END)
INSERT INTO @Definition(FieldValue)VALUES('(')
INSERT INTO @Definition(FieldValue)
SELECT CHAR(10) + FieldName + ' ' +
--CASE WHEN DomainName IS NOT NULL AND @UseSystemDataTypes = 0 THEN DomainName + CASE WHEN IsNullable = 1 THEN ' NULL ' ELSE ' NOT NULL ' END ELSE UPPER(DataType) +CASE WHEN IsCharColumn = 1 THEN '(' + CAST(MaxLength AS VARCHAR(10)) + ')' ELSE '' END +CASE WHEN IdentityColumn = 1 THEN ' IDENTITY(' + CAST(IdentitySeed AS VARCHAR(5))+ ',' + CAST(IdentityIncrement AS VARCHAR(5)) + ')' ELSE '' END +CASE WHEN IsNullable = 1 THEN ' NULL ' ELSE ' NOT NULL ' END +CASE WHEN ColumnDefaultName IS NOT NULL AND @IncludeConstraints = 1 THEN 'CONSTRAINT [' + ColumnDefaultName + '] DEFAULT' + UPPER(ColumnDefaultValue) ELSE '' END END + CASE WHEN FieldID = (SELECT MAX(FieldID) FROM @ShowFields) THEN '' ELSE ',' END
CASE WHEN DomainName IS NOT NULL AND @UseSystemDataTypes = 0 THEN DomainName +
CASe WHEN IsNullable = 1 THEN ' NULL '
ELSE ' NOT NULL '
END
ELSE
case when IsComputed is null then
UPPER(DataType) +
CASE WHEN IsCharColumn = 1 THEN '(' + CAST(MaxLength AS VARCHAR(10)) + ')'
ELSE
CASE WHEN DataType = 'numeric' THEN '(' + CAST(NumericPrecision AS VARCHAR(10))+','+ CAST(NumericScale AS VARCHAR(10)) + ')'
ELSE
CASE WHEN DataType = 'decimal' THEN '(' + CAST(NumericPrecision AS VARCHAR(10))+','+ CAST(NumericScale AS VARCHAR(10)) + ')'
ELSE ''
end
end
END +
CASE WHEN IdentityColumn = 1 THEN ' IDENTITY(' + CAST(IdentitySeed AS VARCHAR(5))+ ',' + CAST(IdentityIncrement AS VARCHAR(5)) + ')'
ELSE ''
END +
CASE WHEN IsNullable = 1 THEN ' NULL '
ELSE ' NOT NULL '
END +
CASE WHEN ColumnDefaultName IS NOT NULL AND @IncludeConstraints = 1 THEN 'CONSTRAINT [' + replace(ColumnDefaultName,@TableName,@NewTableName) + '] DEFAULT' + UPPER(ColumnDefaultValue)
ELSE ''
END
else
' as '+IsComputed+' '
end
END +
CASE WHEN FieldID = (SELECT MAX(FieldID) FROM @ShowFields) THEN ''
ELSE ','
END
FROM @ShowFields
IF @IncludeConstraints = 1
BEGIN
set @sql=
'
use '+@DBName+'
SELECT distinct '',CONSTRAINT ['' + replace(name,@TableName,@NewTableName) + ''] FOREIGN KEY ('' + ParentColumns + '') REFERENCES ['' + ReferencedObject + '']('' + ReferencedColumns + '')''
FROM ( SELECT ReferencedObject = OBJECT_NAME(fk.referenced_object_id), ParentObject = OBJECT_NAME(parent_object_id),fk.name
, REVERSE(SUBSTRING(REVERSE(( SELECT cp.name + '',''
FROM sys.foreign_key_columns fkc
JOIN sys.columns cp ON fkc.parent_object_id = cp.object_id AND fkc.parent_column_id = cp.column_id
WHERE fkc.constraint_object_id = fk.object_id FOR XML PATH('''') )), 2, 8000)) ParentColumns,
REVERSE(SUBSTRING(REVERSE(( SELECT cr.name + '',''
FROM sys.foreign_key_columns fkc
JOIN sys.columns cr ON fkc.referenced_object_id = cr.object_id AND fkc.referenced_column_id = cr.column_id
WHERE fkc.constraint_object_id = fk.object_id FOR XML PATH('''') )), 2, 8000)) ReferencedColumns
FROM sys.foreign_keys fk
inner join sys.schemas s on fk.schema_id=s.schema_id and s.name=@schema) a
WHERE ParentObject = @TableName
'
print @sql
INSERT INTO @Definition(FieldValue)
exec sp_executesql @sql,
N'@TableName varchar(50),@NewTableName varchar(50),@schema varchar(50)',
@TableName=@TableName,@NewTableName=@NewTableName,@schema=@schema
/*
SELECT ',CONSTRAINT [' + name + '] FOREIGN KEY (' + ParentColumns + ') REFERENCES [' + ReferencedObject + '](' + ReferencedColumns + ')'
FROM ( SELECT ReferencedObject = OBJECT_NAME(fk.referenced_object_id), ParentObject = OBJECT_NAME(parent_object_id),fk.name
, REVERSE(SUBSTRING(REVERSE(( SELECT cp.name + ','
FROM sys.foreign_key_columns fkc
JOIN sys.columns cp ON fkc.parent_object_id = cp.object_id AND fkc.parent_column_id = cp.column_id
WHERE fkc.constraint_object_id = fk.object_id FOR XML PATH('') )), 2, 8000)) ParentColumns,
REVERSE(SUBSTRING(REVERSE(( SELECT cr.name + ','
FROM sys.foreign_key_columns fkc
JOIN sys.columns cr ON fkc.referenced_object_id = cr.object_id AND fkc.referenced_column_id = cr.column_id
WHERE fkc.constraint_object_id = fk.object_id FOR XML PATH('') )), 2, 8000)) ReferencedColumns
FROM sys.foreign_keys fk ) a
WHERE ParentObject = @TableName
*/
set @sql=
'
use '+@DBName+'
SELECT distinct '',CONSTRAINT ['' + replace(c.name,@TableName,@NewTableName) + ''] CHECK '' + definition
FROM sys.check_constraints c join sys.schemas s on c.schema_id=s.schema_id and s.name=@schema
WHERE OBJECT_NAME(parent_object_id) = @TableName
'
print @sql
INSERT INTO @Definition(FieldValue)
exec sp_executesql @sql,
N'@TableName varchar(50),@NewTableName varchar(50),@schema varchar(50)',
@TableName=@TableName,@NewTableName=@NewTableName,@schema=@schema
/*
SELECT ',CONSTRAINT [' + name + '] CHECK ' + definition FROM sys.check_constraints
WHERE OBJECT_NAME(parent_object_id) = @TableName
*/
set @sql=
'
use '+@DBName+'
SELECT DISTINCT PKObject = cco.object_id
FROM sys.key_constraints cco
JOIN sys.index_columns cc ON cco.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
join sys.schemas s on cco.schema_id=s.schema_id and s.name=@schema
WHERE OBJECT_NAME(parent_object_id) = @TableName AND i.type = 1 AND is_primary_key = 1
'
print @sql
INSERT INTO @PKObjectID(ObjectID)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName,@schema=@schema
/*
SELECT DISTINCT PKObject = cco.object_id
FROM sys.key_constraints cco
JOIN sys.index_columns cc ON cco.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
WHERE OBJECT_NAME(parent_object_id) = @TableName AND i.type = 1 AND is_primary_key = 1
*/
set @sql=
'
use '+@DBName+'
SELECT DISTINCT PKObject = cco.object_id
FROM sys.key_constraints cco
JOIN sys.index_columns cc ON cco.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
join sys.schemas s on cco.schema_id=s.schema_id and s.name=@schema
WHERE OBJECT_NAME(parent_object_id) = @TableName AND i.type = 2 AND is_primary_key = 0 AND is_unique_constraint = 1
'
print @sql
INSERT INTO @Uniques(ObjectID)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName,@schema=@schema
/*
SELECT DISTINCT PKObject = cco.object_id
FROM sys.key_constraints cco
JOIN sys.index_columns cc ON cco.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
WHERE OBJECT_NAME(parent_object_id) = @TableName AND i.type = 2 AND is_primary_key = 0 AND is_unique_constraint = 1
*/
SET @ClusteredPK = CASE WHEN @@ROWCOUNT > 0 THEN 1 ELSE 0 END
declare @t TestTableType
insert @t select * from @PKObjectID
declare @u TestTableType
insert @u select * from @Uniques
set @sql=
'
use '+@DBName+'
SELECT distinct '',CONSTRAINT '' + replace(cco.name,@TableName,@NewTableName) + CASE type WHEN ''PK'' THEN '' PRIMARY KEY '' + CASE WHEN pk.ObjectID IS NULL THEN '' NONCLUSTERED '' ELSE '' CLUSTERED '' END WHEN ''UQ'' THEN '' UNIQUE '' END + CASE WHEN u.ObjectID IS NOT NULL THEN '' NONCLUSTERED '' ELSE '''' END
+ ''(''+REVERSE(SUBSTRING(REVERSE(( SELECT c.name + + CASE WHEN cc.is_descending_key = 1 THEN '' DESC'' ELSE '' ASC'' END + '',''
FROM sys.key_constraints ccok
LEFT JOIN sys.index_columns cc ON ccok.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
LEFT JOIN sys.columns c ON cc.object_id = c.object_id AND cc.column_id = c.column_id
LEFT JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
WHERE i.object_id = ccok.parent_object_id AND ccok.object_id = cco.object_id
order by key_ordinal FOR XML PATH(''''))), 2, 8000)) + '')''
FROM sys.key_constraints cco
inner join sys.schemas s on cco.schema_id=s.schema_id and s.name=@schema
LEFT JOIN @U u ON cco.object_id = u.objectID
LEFT JOIN @t pk ON cco.object_id = pk.ObjectID
WHERE OBJECT_NAME(cco.parent_object_id) = @TableName
'
print @sql
INSERT INTO @Definition(FieldValue)
exec sp_executesql @sql,
N'@TableName varchar(50),@NewTableName varchar(50),@schema varchar(50),@t TestTableType readonly,@u TestTableType readonly',
@TableName=@TableName,@NewTableName=@NewTableName,@schema=@schema,@t=@t,@u=@u
/*
SELECT ',CONSTRAINT ' + name + CASE type WHEN 'PK' THEN ' PRIMARY KEY ' + CASE WHEN pk.ObjectID IS NULL THEN ' NONCLUSTERED ' ELSE ' CLUSTERED ' END WHEN 'UQ' THEN ' UNIQUE ' END + CASE WHEN u.ObjectID IS NOT NULL THEN ' NONCLUSTERED ' ELSE '' END
+ '(' +REVERSE(SUBSTRING(REVERSE(( SELECT c.name + + CASE WHEN cc.is_descending_key = 1 THEN ' DESC' ELSE ' ASC' END + ','
FROM sys.key_constraints ccok
LEFT JOIN sys.index_columns cc ON ccok.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
LEFT JOIN sys.columns c ON cc.object_id = c.object_id AND cc.column_id = c.column_id
LEFT JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
WHERE i.object_id = ccok.parent_object_id AND ccok.object_id = cco.object_id FOR XML PATH(''))), 2, 8000)) + ')'
FROM sys.key_constraints cco
LEFT JOIN @PKObjectID pk ON cco.object_id = pk.ObjectID
LEFT JOIN @Uniques u ON cco.object_id = u.objectID
WHERE OBJECT_NAME(cco.parent_object_id) = @TableName
*/
END
INSERT INTO @Definition(FieldValue) VALUES(')')
set @sql=
'
use '+@DBName+'
select '' on '' + d.name + ''([''+c.name+''])''
from sys.tables t join sys.indexes i on(i.object_id = t.object_id and i.index_id < 2)
join sys.index_columns ic on(ic.partition_ordinal > 0 and ic.index_id = i.index_id and ic.object_id = t.object_id)
join sys.columns c on(c.object_id = ic.object_id and c.column_id = ic.column_id)
join sys.schemas s on t.schema_id=s.schema_id
join sys.data_spaces d on i.data_space_id=d.data_space_id
where t.name=@TableName and s.name=@schema
order by key_ordinal
'
print 'x'
print @sql
INSERT INTO @Definition(FieldValue)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName,@schema=@schema
IF @IncludeIndexes = 1
BEGIN
set @sql=
'
use '+@DBName+'
SELECT distinct '' CREATE '' + i.type_desc + '' INDEX ['' + replace(i.name COLLATE SQL_Latin1_General_CP1_CI_AS,@TableName,@NewTableName) + ''] ON '+@DBName+'.'+@NewTableSchema+'.'+@NewTableName+' (''
+ REVERSE(SUBSTRING(REVERSE(( SELECT name + CASE WHEN sc.is_descending_key = 1 THEN '' DESC'' ELSE '' ASC'' END + '',''
FROM sys.index_columns sc
JOIN sys.columns c ON sc.object_id = c.object_id AND sc.column_id = c.column_id
WHERE t.name=@TableName AND sc.object_id = i.object_id AND sc.index_id = i.index_id
and is_included_column=0
ORDER BY key_ordinal ASC FOR XML PATH('''') )), 2, 8000)) + '')''+
ISNULL( '' include (''+REVERSE(SUBSTRING(REVERSE(( SELECT name + '',''
FROM sys.index_columns sc
JOIN sys.columns c ON sc.object_id = c.object_id AND sc.column_id = c.column_id
WHERE t.name=@TableName AND sc.object_id = i.object_id AND sc.index_id = i.index_id
and is_included_column=1
ORDER BY key_ordinal ASC FOR XML PATH('''') )), 2, 8000))+'')'' ,'''')+''''
FROM sys.indexes i join sys.tables t on i.object_id=t.object_id
join sys.schemas s on t.schema_id=s.schema_id
AND CASE WHEN @ClusteredPK = 1 AND is_primary_key = 1 AND i.type = 1 THEN 0 ELSE 1 END = 1 AND is_unique_constraint = 0 AND is_primary_key = 0
where t.name=@TableName and s.name=@schema
'
print @sql
INSERT INTO @Definition(FieldValue)
exec sp_executesql @sql,
N'@TableName varchar(50),@NewTableName varchar(50),@schema varchar(50), @ClusteredPK bit',
@TableName=@TableName,@NewTableName=@NewTableName,@schema=@schema,@ClusteredPK=@ClusteredPK
END
/*
SELECT 'CREATE ' + type_desc + ' INDEX [' + [name] COLLATE SQL_Latin1_General_CP1_CI_AS + '] ON [' + OBJECT_NAME(object_id) + '] (' + REVERSE(SUBSTRING(REVERSE(( SELECT name + CASE WHEN sc.is_descending_key = 1 THEN ' DESC' ELSE ' ASC' END + ','
FROM sys.index_columns sc
JOIN sys.columns c ON sc.object_id = c.object_id AND sc.column_id = c.column_id
WHERE OBJECT_NAME(sc.object_id) = @TableName AND sc.object_id = i.object_id AND sc.index_id = i.index_id
ORDER BY index_column_id ASC FOR XML PATH('') )), 2, 8000)) + ')'
FROM sys.indexes i
WHERE OBJECT_NAME(object_id) = @TableName
AND CASE WHEN @ClusteredPK = 1 AND is_primary_key = 1 AND type = 1 THEN 0 ELSE 1 END = 1 AND is_unique_constraint = 0 AND is_primary_key = 0
*/
INSERT INTO @MainDefinition(FieldValue)
SELECT FieldValue FROM @Definition
ORDER BY DefinitionID ASC
----------------------------------
declare @q varchar(max)
set @q=(select replace((SELECT FieldValue FROM @MainDefinition FOR XML PATH('')),'</FieldValue>',''))
set @script=(select REPLACE(@q,'<FieldValue>',''))
--drop type TestTableType
END try
-- ##############################################################################################################################################################################
BEGIN CATCH
BEGIN
-- INIZIO Procedura in errore =========================================================================================================================================================
PRINT '***********************************************************************************************************************************************************'
PRINT 'ErrorNumber : ' + CAST(ERROR_NUMBER() AS NVARCHAR(MAX))
PRINT 'ErrorSeverity : ' + CAST(ERROR_SEVERITY() AS NVARCHAR(MAX))
PRINT 'ErrorState : ' + CAST(ERROR_STATE() AS NVARCHAR(MAX))
PRINT 'ErrorLine : ' + CAST(ERROR_LINE() AS NVARCHAR(MAX))
PRINT 'ErrorMessage : ' + CAST(ERROR_MESSAGE() AS NVARCHAR(MAX))
PRINT '***********************************************************************************************************************************************************'
-- FINE Procedura in errore =========================================================================================================================================================
END
set @script=''
return -1
END CATCH
-- ##############################################################################################################################################################################
执行它：
declare @s varchar(max)
exec [util_ScriptTable] 'db','schema_source','table_source',1,1,'schema_dest','tab_dest',0,@s output
select @s
【讨论】：
在这里 sp 寻找与源做目的地不同的地方：
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--*************************************************************************************************'
-- confronta 2 tabelle e fornisce lo scrit di aggiornamento
-- Tabella : xxxxx
-- Creata da : E.Mantovanelli
-- Data creazione : 26-11-2013
-- Data modifica: 26-11-2013
--*************************************************************************************************'
/*
-- nn supporta il caso inm cui si rinomini una colonna(colonne nn coincidenti, esegue drop+add)
-- ID----|-----Data-----|-- User --------- | ---- Note
*/
ALTER PROCEDURE [dbo].[util_ScriptTable_Update]
@DBName SYSNAME
,@schema_1 sysname
,@TableName_1 SYSNAME
,@IncludeConstraints BIT = 1
,@IncludeIndexes BIT = 1
,@Schema_2 sysname
,@TableName_2 SYSNAME = NULL
,@UseSystemDataTypes BIT = 0
,@script varchar(max) output
AS
BEGIN try
if not exists (select * from sys.types where name = 'TestTableType')
create type TestTableType as table (ObjectID int)--drop type TestTableType
declare @sql nvarchar(max),
@t0 varchar(max),
@t1 varchar(max),
@t2 varchar(max),
@script_add varchar(max),
@script_drop varchar(max)
DECLARE @MainDefinition TABLE (FieldValue VARCHAR(max))
DECLARE @ClusteredPK_1 BIT,
@ClusteredPK_2 BIT
DECLARE @TableSchema NVARCHAR(255)
declare @partition varchar(max)
--SET @DBName = DB_NAME(DB_ID())
SELECT @TableName_1 = name FROM sysobjects WHERE id = OBJECT_ID(@TableName_1)
DECLARE @ShowFields_1 TABLE (FieldID INT IDENTITY(1,1)
,DatabaseName VARCHAR(100)
,TableOwner VARCHAR(100)
,TableName VARCHAR(100)
,FieldName VARCHAR(max)
,ColumnPosition INT
,ColumnDefaultValue VARCHAR(100)
,ColumnDefaultName VARCHAR(100)
,IsNullable BIT
,DataType VARCHAR(100)
,MaxLength varchar(10)
,NumericPrecision INT
,NumericScale INT
,DomainName VARCHAR(100)
,FieldListingName VARCHAR(110)
,FieldDefinition CHAR(1)
,IdentityColumn BIT
,IdentitySeed INT
,IdentityIncrement INT
,IsCharColumn BIT
,IsComputed varchar(255))
DECLARE @ShowFields_2 TABLE (FieldID INT IDENTITY(1,1)
,DatabaseName VARCHAR(100)
,TableOwner VARCHAR(100)
,TableName VARCHAR(100)
,FieldName VARCHAR(max)
,ColumnPosition INT
,ColumnDefaultValue VARCHAR(100)
,ColumnDefaultName VARCHAR(100)
,IsNullable BIT
,DataType VARCHAR(100)
,MaxLength varchar(10)
,NumericPrecision INT
,NumericScale INT
,DomainName VARCHAR(100)
,FieldListingName VARCHAR(110)
,FieldDefinition CHAR(1)
,IdentityColumn BIT
,IdentitySeed INT
,IdentityIncrement INT
,IsCharColumn BIT
,IsComputed varchar(255))
DECLARE @HoldingArea TABLE(FldID SMALLINT IDENTITY(1,1)
,Flds VARCHAR(4000)
,FldValue CHAR(1) DEFAULT(0))
DECLARE @PKObjectID TABLE(ObjectID INT)
DECLARE @Uniques TABLE(ObjectID INT)
DECLARE @HoldingAreaValues TABLE(FldID SMALLINT IDENTITY(1,1)
,Flds VARCHAR(4000)
,FldValue CHAR(1) DEFAULT(0))
DECLARE @Definition TABLE(--DefinitionID SMALLINT IDENTITY(1,1)
state int
,FieldValue_1 VARCHAR(max),FieldValue_2 VARCHAR(max))
------------------------------
--FK
------------------------------
delete @Definition
delete @ShowFields_1
delete @ShowFields_2
set @sql=
'
use '+@DBName+'
SELECT distinct db_name(),@schema,ParentObject,name, ''('' + ParentColumns + '') REFERENCES ['' + ReferencedObject + '']('' + ReferencedColumns + '')''
FROM ( SELECT ReferencedObject = OBJECT_NAME(fk.referenced_object_id), ParentObject = OBJECT_NAME(parent_object_id),fk.name
, REVERSE(SUBSTRING(REVERSE(( SELECT cp.name + '',''
FROM sys.foreign_key_columns fkc
JOIN sys.columns cp ON fkc.parent_object_id = cp.object_id AND fkc.parent_column_id = cp.column_id
WHERE fkc.constraint_object_id = fk.object_id FOR XML PATH('''') )), 2, 8000)) ParentColumns,
REVERSE(SUBSTRING(REVERSE(( SELECT cr.name + '',''
FROM sys.foreign_key_columns fkc
JOIN sys.columns cr ON fkc.referenced_object_id = cr.object_id AND fkc.referenced_column_id = cr.column_id
WHERE fkc.constraint_object_id = fk.object_id FOR XML PATH('''') )), 2, 8000)) ReferencedColumns
FROM sys.foreign_keys fk
inner join sys.schemas s on fk.schema_id=s.schema_id and s.name=@schema) a
WHERE ParentObject = @TableName
'
print @sql
INSERT INTO @ShowFields_1( DatabaseName
,TableOwner
,TableName
,ColumnDefaultName
,FieldName
)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@tablename_1,@schema=@schema_1
INSERT INTO @ShowFields_2( DatabaseName
,TableOwner
,TableName
,ColumnDefaultName
,FieldName
)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@tablename_2,@schema=@schema_2
INSERT INTO @Definition(FieldValue_1)
select '['+@TableName_2+'_'+RIGHT(substring(convert(varchar(10),RAND()),3,10),10)+'] FOREIGN KEY '+FieldName+','
from
(
select COUNT(*)c,MAX(TableOwner)s,MAX(TableName)t,FieldName from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
)t
group by FieldName
)t
where c=1 and s=@schema_1 and t=@TableName_1
INSERT INTO @Definition(FieldValue_2)
select '['+k+'],'
from
(
select COUNT(*)c,MAX(TableOwner)s,MAX(TableName)t,MAX(ColumnDefaultName)k,FieldName from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
)t
group by FieldName
)t
where c=1 and s=@schema_2 and t=@TableName_2
set @t1=case when (select COUNT(FieldValue_1) from @Definition)>0 then (select ' alter table '+@Schema_2+'.'+@TableName_2+' add CONSTRAINT'+(replace((select replace((SELECT SUBSTRING(FieldValue_1,0,LEN(FieldValue_1)+1) FROM @Definition FOR XML PATH('')),'</FieldValue_1>','')),'<FieldValue_1>',''))) else '' end
set @t2=case when (select COUNT(FieldValue_2) from @Definition)>0 then (select ' alter table '+@Schema_2+'.'+@TableName_2+' drop CONSTRAINT '+(replace((select replace((SELECT SUBSTRING(FieldValue_2,0,LEN(FieldValue_2)+1) FROM @Definition FOR XML PATH('')),'</FieldValue_2>','')),'<FieldValue_2>',''))) else '' end
--prima la drop, poi la add
set @script_drop =' '+ substring(@t2,0,len(@t2))
set @script_add =' '+ substring(@t1,0,len(@t1))
-----------------------------
--Keys
-----------------------------
delete @Definition
delete @ShowFields_1
delete @ShowFields_2
set @sql=
'
use '+@DBName+'
SELECT DISTINCT PKObject = cco.object_id
FROM sys.key_constraints cco
JOIN sys.index_columns cc ON cco.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
join sys.schemas s on cco.schema_id=s.schema_id and s.name=@schema
WHERE OBJECT_NAME(parent_object_id) = @TableName AND i.type = 1 AND is_primary_key = 1
'
print @sql
INSERT INTO @PKObjectID(ObjectID)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName_1,@schema=@schema_1
print @sql
INSERT INTO @PKObjectID(ObjectID)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName_2,@schema=@schema_2
/*
SELECT DISTINCT PKObject = cco.object_id
FROM sys.key_constraints cco
JOIN sys.index_columns cc ON cco.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
WHERE OBJECT_NAME(parent_object_id) = @TableName AND i.type = 1 AND is_primary_key = 1
*/
set @sql=
'
use '+@DBName+'
SELECT DISTINCT PKObject = cco.object_id
FROM sys.key_constraints cco
JOIN sys.index_columns cc ON cco.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
join sys.schemas s on cco.schema_id=s.schema_id and s.name=@schema
WHERE OBJECT_NAME(parent_object_id) = @TableName AND i.type = 2 AND is_primary_key = 0 AND is_unique_constraint = 1
'
print @sql
INSERT INTO @Uniques(ObjectID)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName_1,@schema=@schema_1
SET @ClusteredPK_1 = CASE WHEN @@ROWCOUNT > 0 THEN 1 ELSE 0 END
print @sql
INSERT INTO @Uniques(ObjectID)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName_2,@schema=@schema_2
SET @ClusteredPK_2 = CASE WHEN @@ROWCOUNT > 0 THEN 1 ELSE 0 END
--------------------------------------
--PK
--------------------------------------
delete @Definition
delete @ShowFields_1
delete @ShowFields_2
set @sql=
'
use '+@DBName+'
SELECT distinct db_name(),@schema,@TableName,cco.name,CASE type WHEN ''PK'' THEN '' PRIMARY KEY '' + CASE WHEN pk.ObjectID IS NULL THEN '' NONCLUSTERED '' ELSE '' CLUSTERED '' END WHEN ''UQ'' THEN '' UNIQUE '' END + CASE WHEN u.ObjectID IS NOT NULL THEN '' NONCLUSTERED '' ELSE '''' END
+ ''(''+REVERSE(SUBSTRING(REVERSE(( SELECT c.name + + CASE WHEN cc.is_descending_key = 1 THEN '' DESC'' ELSE '' ASC'' END + '',''
FROM sys.key_constraints ccok
LEFT JOIN sys.index_columns cc ON ccok.parent_object_id = cc.object_id AND cco.unique_index_id = cc.index_id
LEFT JOIN sys.columns c ON cc.object_id = c.object_id AND cc.column_id = c.column_id
LEFT JOIN sys.indexes i ON cc.object_id = i.object_id AND cc.index_id = i.index_id
WHERE i.object_id = ccok.parent_object_id AND ccok.object_id = cco.object_id
order by key_ordinal FOR XML PATH(''''))), 2, 8000)) + '')''
FROM sys.key_constraints cco
inner join sys.schemas s on cco.schema_id=s.schema_id and s.name=@schema
LEFT JOIN @U u ON cco.object_id = u.objectID
LEFT JOIN @t pk ON cco.object_id = pk.ObjectID
WHERE OBJECT_NAME(cco.parent_object_id) = @TableName
'
declare @t TestTableType
insert @t select * from @PKObjectID
declare @u TestTableType
insert @u select * from @Uniques
print @sql
INSERT INTO @ShowFields_1( DatabaseName
,TableOwner
,TableName
,ColumnDefaultName
,FieldName
)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50),@t TestTableType readonly,@u TestTableType readonly',
@TableName=@TableName_1,@schema=@schema_1,@t=@t,@u=@u
INSERT INTO @ShowFields_2( DatabaseName
,TableOwner
,TableName
,ColumnDefaultName
,FieldName
)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50),@t TestTableType readonly,@u TestTableType readonly',
@TableName=@TableName_2,@schema=@schema_2,@t=@t,@u=@u
INSERT INTO @Definition(FieldValue_1)
select ' alter table '+@Schema_2+'.'+@TableName_2+' add constraint ['+k+'] '+FieldName+';'
from
(
select COUNT(*)c,MAX(TableOwner)s,MAX(TableName)t,MAX(ColumnDefaultName)k,FieldName from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
)t
group by FieldName
)t
where c=1 and s=@schema_1 and t=@TableName_1
INSERT INTO @Definition(FieldValue_2)
select ' alter table '+@Schema_2+'.'+@TableName_2+' drop constraint ['+k+'] ;'
from
(
select COUNT(*)c,MAX(TableOwner)s,MAX(TableName)t,MAX(ColumnDefaultName)k,FieldName from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
)t
group by FieldName
)t
where c=1 and s=@schema_2 and t=@TableName_2
set @t1=case when (select COUNT(FieldValue_1) from @Definition)>0 then ((replace((select replace((SELECT SUBSTRING(FieldValue_1,0,LEN(FieldValue_1)+1) FROM @Definition FOR XML PATH('')),'</FieldValue_1>','')),'<FieldValue_1>',''))) else '' end
set @t2=case when (select COUNT(FieldValue_2) from @Definition)>0 then ((replace((select replace((SELECT SUBSTRING(FieldValue_2,0,LEN(FieldValue_2)+1) FROM @Definition FOR XML PATH('')),'</FieldValue_2>','')),'<FieldValue_2>',''))) else '' end
--prima la drop, poi la add
set @script_drop +=' '+ substring(@t2,0,len(@t2))
set @script_add =substring(@t1,0,len(@t1))+ ' ' +@script_add
--------------------------------------
--Partition
--------------------------------------
delete @Definition
delete @ShowFields_1
delete @ShowFields_2
set @sql=
'
use '+@DBName+'
select @partition='' on '' + d.name + ''([''+c.name+''])''
from sys.tables t join sys.indexes i on(i.object_id = t.object_id and i.index_id < 2)
join sys.index_columns ic on(ic.partition_ordinal > 0 and ic.index_id = i.index_id and ic.object_id = t.object_id)
join sys.columns c on(c.object_id = ic.object_id and c.column_id = ic.column_id)
join sys.schemas s on t.schema_id=s.schema_id
join sys.data_spaces d on i.data_space_id=d.data_space_id
where t.name=@TableName and s.name=@schema
order by key_ordinal
'
print 'x'
print @sql
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50),@partition varchar(max) output',
@TableName=@TableName_1,@schema=@schema_1,@partition=@partition output
if(@partition is null)
set @partition=''
--select @partition
--------------------------------------
--Indexes
--------------------------------------
delete @Definition
delete @ShowFields_1
delete @ShowFields_2
IF @IncludeIndexes = 1
BEGIN
set @sql=
'
use '+@DBName+'
SELECT DB_NAME(),s.name,t.name,i.name COLLATE SQL_Latin1_General_CP1_CI_AS, i.type_desc ,''(''+REVERSE(SUBSTRING(REVERSE(( SELECT name + CASE WHEN sc.is_descending_key = 1 THEN '' DESC'' ELSE '' ASC'' END + '',''
FROM sys.index_columns sc
JOIN sys.columns c ON sc.object_id = c.object_id AND sc.column_id = c.column_id
WHERE t.name=@TableName AND sc.object_id = i.object_id
AND sc.index_id = i.index_id
and t.schema_id=s.schema_id
and is_included_column=0
--caso di tabelle partizionate
--inserisce in automatico la pk
and (key_ordinal!=0 or partition_ordinal!=1)
ORDER BY key_ordinal ASC FOR XML PATH('''') )), 2, 8000)) + '')''+
ISNULL( '' include (''+REVERSE(SUBSTRING(REVERSE(( SELECT name + '',''
FROM sys.index_columns sc
JOIN sys.columns c ON sc.object_id = c.object_id AND sc.column_id = c.column_id
WHERE t.name=@TableName AND sc.object_id = i.object_id
AND sc.index_id = i.index_id
and t.schema_id=s.schema_id
and is_included_column=1
ORDER BY key_ordinal ASC FOR XML PATH('''') )), 2, 8000))+'')'' ,'''')+''''
FROM sys.indexes i join sys.tables t on i.object_id=t.object_id
join sys.schemas s on t.schema_id=s.schema_id
AND CASE WHEN @ClusteredPK = 1 AND is_primary_key = 1 AND i.type = 1 THEN 0 ELSE 1 END = 1 AND is_unique_constraint = 0 AND is_primary_key = 0
where t.name=@TableName and s.name=@schema
'
print @ClusteredPK_1
print @sql
INSERT INTO @ShowFields_1( DatabaseName
,TableOwner
,TableName
,ColumnDefaultName
,ColumnDefaultValue
,FieldName
)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50), @ClusteredPK bit',
@TableName=@TableName_1,@schema=@schema_1,@ClusteredPK=@ClusteredPK_1
INSERT INTO @ShowFields_2( DatabaseName
,TableOwner
,TableName
,ColumnDefaultName
,ColumnDefaultValue
,FieldName
)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50), @ClusteredPK bit',
@TableName=@TableName_2,@schema=@schema_2,@ClusteredPK=@ClusteredPK_2
INSERT INTO @Definition(FieldValue_1)
select 'create '+ColumnDefaultValue+' index ['+n+'] on '+@schema_2+'.'+@TableName_2+FieldName+@partition+';'
from
(
select COUNT(*)c,MAX(TableOwner)s,MAX(TableName)t,MAX(ColumnDefaultName)n,ColumnDefaultValue,FieldName from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
)t
group by ColumnDefaultValue,FieldName
)t
where c=1 and s=@schema_1 and t=@TableName_1
INSERT INTO @Definition(FieldValue_2)
select 'drop index ['+n+'] on '+@schema_2+'.'+@TableName_2+' ;'
from
(
select COUNT(*)c,MAX(TableOwner)s,MAX(TableName)t,MAX(ColumnDefaultName)n,ColumnDefaultValue,FieldName from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
)t
group by ColumnDefaultValue,FieldName
)t
where c=1 and s=@schema_2 and t=@TableName_2
set @t1=case when (select COUNT(FieldValue_1) from @Definition)>0 then ((replace((select replace((SELECT SUBSTRING(FieldValue_1,0,LEN(FieldValue_1)+1) FROM @Definition FOR XML PATH('')),'</FieldValue_1>','')),'<FieldValue_1>',''))) else '' end
set @t2=case when (select COUNT(FieldValue_2) from @Definition)>0 then ((replace((select replace((SELECT SUBSTRING(FieldValue_2,0,LEN(FieldValue_2)+1) FROM @Definition FOR XML PATH('')),'</FieldValue_2>','')),'<FieldValue_2>',''))) else '' end
--prima la drop, poi la add
set @script_drop +=' '+ substring(@t2,0,len(@t2))
set @script_add =substring(@t1,0,len(@t1))+ ' ' +@script_add
END
-----------------------------
--Columns
-----------------------------
delete @Definition
delete @ShowFields_1
delete @ShowFields_2
set @sql=
'
use '+@DBName+'
SELECT distinct DB_NAME()
,TABLE_SCHEMA
,TABLE_NAME
,''[''+COLUMN_NAME+'']'' as COLUMN_NAME
,CAST(ORDINAL_POSITION AS INT)
,COLUMN_DEFAULT
,dobj.name AS ColumnDefaultName
,CASE WHEN c.IS_NULLABLE = ''YES'' THEN 1 ELSE 0 END
,DATA_TYPE
,case CHARACTER_MAXIMUM_LENGTH when -1 then ''max'' else CAST(CHARACTER_MAXIMUM_LENGTH AS varchar) end--CAST(CHARACTER_MAXIMUM_LENGTH AS INT)
,CAST(NUMERIC_PRECISION AS INT)
,CAST(NUMERIC_SCALE AS INT)
,DOMAIN_NAME
,COLUMN_NAME + '',''
,'''' AS FieldDefinition
,CASE WHEN ic.object_id IS NULL THEN 0 ELSE 1 END AS IdentityColumn
,CAST(ISNULL(ic.seed_value,0) AS INT) AS IdentitySeed
,CAST(ISNULL(ic.increment_value,0) AS INT) AS IdentityIncrement
,CASE WHEN st.collation_name IS NOT NULL THEN 1 ELSE 0 END AS IsCharColumn
,cc.definition
FROM INFORMATION_SCHEMA.COLUMNS c
JOIN sys.columns sc ON c.TABLE_NAME = OBJECT_NAME(sc.object_id) AND c.COLUMN_NAME = sc.Name
LEFT JOIN sys.identity_columns ic ON c.TABLE_NAME = OBJECT_NAME(ic.object_id) AND c.COLUMN_NAME = ic.Name
JOIN sys.types st ON COALESCE(c.DOMAIN_NAME,c.DATA_TYPE) = st.name
LEFT OUTER JOIN sys.objects dobj ON dobj.object_id = sc.default_object_id AND dobj.type = ''D''
left join sys.computed_columns cc on c.TABLE_NAME=OBJECT_NAME(cc.object_id) and sc.column_id=cc.column_id
WHERE c.TABLE_NAME = @TableName and c.TABLE_SCHEMA=@schema
ORDER BY c.TABLE_NAME, c.ORDINAL_POSITION
'
print @sql
INSERT INTO @ShowFields_1( DatabaseName
,TableOwner
,TableName
,FieldName
,ColumnPosition
,ColumnDefaultValue
,ColumnDefaultName
,IsNullable
,DataType
,MaxLength
,NumericPrecision
,NumericScale
,DomainName
,FieldListingName
,FieldDefinition
,IdentityColumn
,IdentitySeed
,IdentityIncrement
,IsCharColumn
,IsComputed)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName_1,@schema=@schema_1
INSERT INTO @ShowFields_2( DatabaseName
,TableOwner
,TableName
,FieldName
,ColumnPosition
,ColumnDefaultValue
,ColumnDefaultName
,IsNullable
,DataType
,MaxLength
,NumericPrecision
,NumericScale
,DomainName
,FieldListingName
,FieldDefinition
,IdentityColumn
,IdentitySeed
,IdentityIncrement
,IsCharColumn
,IsComputed)
exec sp_executesql @sql,
N'@TableName varchar(50),@schema varchar(50)',
@TableName=@TableName_2,@schema=@schema_2
----------------------------------
INSERT INTO @Definition(state,FieldValue_1)
SELECT t2.c,t.FieldName + ' ' +
--CASE WHEN DomainName IS NOT NULL AND @UseSystemDataTypes = 0 THEN DomainName + CASE WHEN IsNullable = 1 THEN ' NULL ' ELSE ' NOT NULL ' END ELSE UPPER(DataType) +CASE WHEN IsCharColumn = 1 THEN '(' + CAST(MaxLength AS VARCHAR(10)) + ')' ELSE '' END +CASE WHEN IdentityColumn = 1 THEN ' IDENTITY(' + CAST(IdentitySeed AS VARCHAR(5))+ ',' + CAST(IdentityIncrement AS VARCHAR(5)) + ')' ELSE '' END +CASE WHEN IsNullable = 1 THEN ' NULL ' ELSE ' NOT NULL ' END +CASE WHEN ColumnDefaultName IS NOT NULL AND @IncludeConstraints = 1 THEN 'CONSTRAINT [' + ColumnDefaultName + '] DEFAULT' + UPPER(ColumnDefaultValue) ELSE '' END END + CASE WHEN FieldID = (SELECT MAX(FieldID) FROM @ShowFields) THEN '' ELSE ',' END
CASE WHEN DomainName IS NOT NULL AND @UseSystemDataTypes = 0 THEN DomainName +
CASe WHEN IsNullable = 1 THEN ' NULL '
ELSE ' NOT NULL '
END
ELSE
case when IsComputed is null then
UPPER(DataType) +
CASE WHEN IsCharColumn = 1 THEN '(' + CAST(MaxLength AS VARCHAR(10)) + ')'
ELSE
CASE WHEN DataType = 'numeric' THEN '(' + CAST(NumericPrecision AS VARCHAR(10))+','+ CAST(NumericScale AS VARCHAR(10)) + ')'
ELSE
CASE WHEN DataType = 'decimal' THEN '(' + CAST(NumericPrecision AS VARCHAR(10))+','+ CAST(NumericScale AS VARCHAR(10)) + ')'
ELSE ''
end
end
END +
CASE WHEN IdentityColumn = 1 THEN ' IDENTITY(' + CAST(IdentitySeed AS VARCHAR(5))+ ',' + CAST(IdentityIncrement AS VARCHAR(5)) + ')'
ELSE ''
END +
CASE WHEN IsNullable = 1 THEN ' NULL '
ELSE ' NOT NULL '
END +
CASE WHEN ColumnDefaultName IS NOT NULL AND @IncludeConstraints = 1 THEN 'CONSTRAINT [' + replace(ColumnDefaultName,@TableName_1,@TableName_2) + '] DEFAULT' + UPPER(ColumnDefaultValue)
ELSE ''
END
else
' as '+IsComputed+' '
end
END +
--, per add, ; per alter
CASE WHEN t2.c = 1 THEN ','
ELSE ';'
END
from
(
select *
FROM
( --escludo la ColumnPosition xkè:
-- c1, c2, c3
-- cancello c2 e aggiungo c4 quindi
-- c1, c3, c4
-- c2 è in posizione 2
-- se considero anche la ColumnPosition c3 sarebbe da cancellare e ricreare, e perderei i dati
-- in qsto modo mantengo la stessa colonna che con la drop delle altre si rimette al suo posto
-- ATTENZIONE.!!.
-- se cancello c2 e poi lo ricreo (passa da posizione 2 a posizione 3) nn percepisco il cambiamento
select COUNT(*)c,MAX(TableOwner) s,MAX(TableName) t,MAX(ColumnPosition)p
,FieldName,ColumnDefaultValue,ColumnDefaultName,IsNullable,DataType
,MaxLength,NumericPrecision,NumericScale,DomainName,FieldListingName,FieldDefinition
,IdentityColumn,IdentitySeed,IdentityIncrement,IsCharColumn,IsComputed
from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
--order by TableOwner,TableName,ColumnPosition
)t
group by FieldName,ColumnDefaultValue,ColumnDefaultName,IsNullable,DataType
,MaxLength,NumericPrecision,NumericScale,DomainName,FieldListingName,FieldDefinition
,IdentityColumn,IdentitySeed,IdentityIncrement,IsCharColumn,IsComputed
)t
where s=@schema_1 and t=@TableName_1 and c=1
)t
--distinguo le colonne columi(t2.c=2 -> alter column; t2.c=1 -> add column)
join
(
select FieldName,COUNT(*)c from
(
select FieldName from @ShowFields_1 union all
select FieldName from @ShowFields_2
)a
group by FieldName
)t2 on t.FieldName=t2.FieldName
order by s,t,p--,ColumnPosition
INSERT INTO @Definition(FieldValue_2)
SELECT ' '+t.FieldName + ', '
from
(
select *
FROM
( --escludo la ColumnPosition xkè:
-- c1, c2, c3
-- cancello c2 e aggiungo c4 quindi
-- c1, c3, c4
-- c2 è in posizione 2
-- se considero anche la ColumnPosition c3 sarebbe da cancellare e ricreare, e perderei i dati
-- in qsto modo mantengo la stessa colonna che con la drop delle altre si rimette al suo posto
-- ATTENZIONE.!!.
-- se cancello c2 e poi lo ricreo (passa da posizione 2 a posizione 3) nn percepisco il cambiamento
select COUNT(*)c,MAX(TableOwner) s,MAX(TableName) t--,MAX(ColumnPosition)p
,FieldName,ColumnDefaultValue,ColumnDefaultName,IsNullable,DataType
,MaxLength,NumericPrecision,NumericScale,DomainName,FieldListingName,FieldDefinition
,IdentityColumn,IdentitySeed,IdentityIncrement,IsCharColumn,IsComputed
from
(
select * from @ShowFields_1 union all
select * from @ShowFields_2
--order by TableOwner,TableName,ColumnPosition
)t
group by FieldName,ColumnDefaultValue,ColumnDefaultName,IsNullable,DataType
,MaxLength,NumericPrecision,NumericScale,DomainName,FieldListingName,FieldDefinition
,IdentityColumn,IdentitySeed,IdentityIncrement,IsCharColumn,IsComputed
)t
where s=@schema_2 and t=@TableName_2 and c=1
)t
--distinguo le colonne columi tra le tabelle(t2.c=2 -> alter column; t2.c=1 -> add column)
join
(
select FieldName,COUNT(*)c from
(
select FieldName from @ShowFields_1 union all
select FieldName from @ShowFields_2
)a
group by FieldName
having COUNT(*)=1
)t2 on t.FieldName=t2.FieldName
order by s,t--,ColumnPosition
--state=1 -> add
--state=2 -> alter
set @t0=case when (select COUNT(FieldValue_1) from @Definition where state=1)>0 then (select ' alter table '+@Schema_2+'.'+@TableName_2+' add '+(replace((select replace((SELECT SUBSTRING(FieldValue_1,0,LEN(FieldValue_1)+1) FROM @Definition where state=1 FOR XML PATH('')),'</FieldValue_1>','')),'<FieldValue_1>',''))) else '' end
set @t1=case when (select COUNT(FieldValue_1) from @Definition where state=2)>0 then (select (replace((select replace((SELECT ' alter table '+@Schema_2+'.'+@TableName_2+' alter column '+SUBSTRING(FieldValue_1,0,LEN(FieldValue_1)+1) FROM @Definition where state=2 FOR XML PATH('')),'</FieldValue_1>','')),'<FieldValue_1>',''))) else '' end
set @t2=case when (select COUNT(FieldValue_2) from @Definition)>0 then (select ' alter table '+@Schema_2+'.'+@TableName_2+' drop column '+(replace((select replace((SELECT SUBSTRING(FieldValue_2,0,LEN(FieldValue_2)+1) FROM @Definition FOR XML PATH('')),'</FieldValue_2>','')),'<FieldValue_2>',''))) else '' end
--prima la drop, poi la add
set @script_drop +=' '+ substring(@t2,0,len(@t2))
set @script_add =substring(@t0,0,len(@t0)) + ' ' + substring(@t1,0,len(@t1))+ ' ' +@script_add
set @script=@script_drop+@script_add
END try
-- ##############################################################################################################################################################################
BEGIN CATCH
BEGIN
PRINT 'ErrorNumber : ' + CAST(ERROR_NUMBER() AS NVARCHAR(MAX))
PRINT 'ErrorSeverity : ' + CAST(ERROR_SEVERITY() AS NVARCHAR(MAX))
PRINT 'ErrorState : ' + CAST(ERROR_STATE() AS NVARCHAR(MAX))
PRINT 'ErrorLine : ' + CAST(ERROR_LINE() AS NVARCHAR(MAX))
PRINT 'ErrorMessage : ' + CAST(ERROR_MESSAGE() AS NVARCHAR(MAX))
PRINT
END
set @script=''
return -1
END CATCH
执行它：
declare @s varchar(max)
exec [util_ScriptTable_Update] 'db','schema_source','table_source',1,1,'schema_dest','tab_dest',0,@s output
select @s
【讨论】：