更新时间:1970-01-01 07:57:06
SELECT t1.id
FROM table1 t1
INNER JOIN table2 t2 ON t1.id = t2.id
WHERE ISNULL(t1.field1,'') <> ISNULL(t2.field1,'')
OR ISNULL(t1.field2,'') <> ISNULL(t2.field2,'')
OR ...
要生成长的 WHERE 部分,您可以使用此功能:
To produce long WHERE part you can use this function:
CREATE PROCEDURE compareTables
@db1 NVARCHAR(100),
@table1 NVARCHAR(100),
@db2 NVARCHAR(100),
@table2 NVARCHAR(100)
AS
BEGIN
SET NOCOUNT ON;
DECLARE @where NVARCHAR(MAX)
DECLARE @cmd NVARCHAR(MAX)
SET @where = ''
SELECT @where = @where + 'ISNULL(t1.' + name + ','''') <> ISNULL(t2.' + name + ','''') OR '
FROM sys.columns WHERE object_id = OBJECT_ID(@table1)
SET @where = SUBSTRING(@where,1,LEN(@where)-3)
SET @cmd = 'SELECT t1.id FROM ' + @db1 + '.' + @table1 + ' t1 '
SET @cmd = @cmd + 'INNER JOIN ' + @db2 + '.' + @table2 + ' t2 ON t1.id = t2.id '
SET @cmd = @cmd + 'WHERE ' + @where
EXEC sp_executesql @cmd
END
GO
示例用法:
EXEC compareTables 'db1_name','dbo.table1','db2_name','dbo.table1'
记得把schema放在表名中.
Remember to put schema in the table name.