SqlServer批量Sql一个表的数据导入到另一个数据

一个表的导入：

SET IDENTITY_INSERT [master_new].[dbo].[OpinionList] ON
INSERT INTO [master_new].[dbo].[OpinionList](Id,Batch,LinkId,DB_Names,CreateTime)
SELECT * FROM [DBA_DB].[dbo].[OpinionList]
SET IDENTITY_INSERT [master_new].[dbo].[OpinionList] OFF
GO

 多个表的导入：

DECLARE @fromdb VARCHAR(100)
DECLARE @todb VARCHAR(100)
DECLARE @tablename VARCHAR(100)
DECLARE @columnnames NVARCHAR(300)
DECLARE @isidentity NVARCHAR(30)
DECLARE @temsql NVARCHAR(max)
DECLARE @sql NVARCHAR(max)
SET @fromdb = 'sss'
SET @todb = 'ss'


--游标
DECLARE @itemCur CURSOR
SET @itemCur = CURSOR FOR 
    SELECT '['+[name]+']' from sys.tables WHERE type='U' order by name

OPEN @itemCur
FETCH NEXT FROM @itemCur INTO @tablename
WHILE @@FETCH_STATUS=0
BEGIN
    
    SET @sql = ''

    --获取表字段
    SET @temsql = N'
    BEGIN
    SET @columnnamesOUT =''''
    SELECT @columnnamesOUT = @columnnamesOUT + '','' + name 
    From sys.columns where object_id=OBJECT_ID(''['+@fromdb+'].dbo.'+@tablename+''')
    order by column_id
    SELECT @columnnamesOUT=substring(@columnnamesOUT,2,len(@columnnamesOUT))
    END
    '
    EXEC sp_executesql @temsql,N'@columnnamesOUT NVARCHAR(300) OUTPUT',@columnnamesOUT=@columnnames OUTPUT

    PRINT ('--'+@tablename)

    --判断是否有自增字段
    SET @temsql = N'
    BEGIN
    SET @isidentityOUT =''''
    SELECT @isidentityOUT = name 
    From sys.columns where object_id=OBJECT_ID(''['+@fromdb+'].dbo.'+@tablename+''')
    and is_identity = 1
    END
    '
    EXEC sp_executesql @temsql,N'@isidentityOUT NVARCHAR(30) OUTPUT',@isidentityOUT=@isidentity OUTPUT

    --IDENTITY_INSERT ON
    IF @isidentity != ''
    BEGIN
        SET @sql = 'SET IDENTITY_INSERT ['+@todb+'].[dbo].['+@tablename+'] ON
'
    END

    --INSERT
    SET @sql = @sql+'INSERT INTO ['+@todb+'].[dbo].['+@tablename+']('+@columnnames+')
SELECT * FROM ['+@fromdb+'].[dbo].['+@tablename+']'

    --IDENTITY_INSERT OFF
    IF @isidentity != ''
    BEGIN
        SET @sql = @sql+'
SET IDENTITY_INSERT ['+@todb+'].[dbo].['+@tablename+'] OFF'
    END

    --返回SQL
    PRINT(@sql)PRINT('GO')+CHAR(13)

    FETCH NEXT FROM @itemCur INTO @tablename
END 

CLOSE @itemCur
DEALLOCATE @itemCur




INSERT INTO [master_new].[dbo].[spt_values](name,number,type,low,high,status)
SELECT * FROM [master].[dbo].[spt_values]
GO

--[OpinionList]
SET IDENTITY_INSERT [master_new].[dbo].[OpinionList] ON
INSERT INTO [master_new].[dbo].[OpinionList](Id,Batch,LinkId,DB_Names,CreateTime)
SELECT * FROM [DBA_DB].[dbo].[OpinionList]
SET IDENTITY_INSERT [master_new].[dbo].[OpinionList] OFF

生成的部分脚本如下：

--[PosSetInfo]
INSERT INTO [ss].[dbo].[[PosSetInfo]](ID,PosSet_x,PosSet_y,PosTime)
SELECT * FROM [sss].[dbo].[[PosSetInfo]]
GO

--[testdelete]
SET IDENTITY_INSERT [ss].[dbo].[[testdelete]] ON
INSERT INTO [ss].[dbo].[[testdelete]](id,NAME,dt)
SELECT * FROM [sss].[dbo].[[testdelete]]
SET IDENTITY_INSERT [ss].[dbo].[[testdelete]] OFF
GO

--[TestRows2Columns]
SET IDENTITY_INSERT [ss].[dbo].[[TestRows2Columns]] ON
INSERT INTO [ss].[dbo].[[TestRows2Columns]](Id,UserName,Subject,Source)
SELECT * FROM [sss].[dbo].[[TestRows2Columns]]
SET IDENTITY_INSERT [ss].[dbo].[[TestRows2Columns]] OFF
GO

--[VisiteLog]
SET IDENTITY_INSERT [ss].[dbo].[[VisiteLog]] ON   --自增
INSERT INTO [ss].[dbo].[[VisiteLog]](Id,PosSet)
SELECT * FROM [sss].[dbo].[[VisiteLog]]
SET IDENTITY_INSERT [ss].[dbo].[[VisiteLog]] OFF
GO