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根据表的主键字段和数据字段从其它数据库同步相同表的数据

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WBOYOriginal
2016-06-07 14:57:271362browse

根据一个表的中主键字段和数据字段从其它数据库中找到结构相同的同名表,并同步相同表的数据。 无 USE [CMS2]GODECLARE @sql NVARCHAR(MAX) SET @sql=N'MERGE [dbo].[RolePermission] targetUSING [CMS].[dbo].[RolePermission] sourceON target.['+STUFF((SE

根据一个表的中主键字段和数据字段从其它数据库中找到结构相同的同名表,并同步相同表的数据。
USE [CMS2]
GO
DECLARE @sql NVARCHAR(MAX)
  SET @sql=N'MERGE [dbo].[RolePermission] target
			USING [CMS].[dbo].[RolePermission] source
			ON target.['+STUFF(
			(SELECT N'] AND target.[' + [COLUMN_NAME] + N']=source.[' + [COLUMN_NAME] FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE SUBSTRING([CONSTRAINT_NAME],1,2)='PK' AND [TABLE_NAME] = 'RolePermission' FOR XML PATH('')),1,14,N'')+'] 
			WHEN MATCHED
			THEN UPDATE SET target.['+STUFF(
			(SELECT N'],target.[' + [COLUMN_NAME] + N']=source.[' + [COLUMN_NAME] FROM INFORMATION_SCHEMA.COLUMNS WHERE [TABLE_NAME] = 'RolePermission' FOR XML PATH('')),1,10,N'')+']
			WHEN NOT MATCHED
			THEN INSERT VALUES(['+STUFF(
			(SELECT N'],[' + [COLUMN_NAME] FROM INFORMATION_SCHEMA.COLUMNS WHERE [TABLE_NAME] = 'RolePermission' FOR XML PATH('')),1,3,N'')+N'])   
			WHEN NOT MATCHED BY SOURCE THEN   
			DELETE;'
EXEC sp_executesql @sql
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