两种方法。
1、ROW_NUMBER()
SELECT RowID=(ROW_NUMBER() OVER(ORDER BY(SELECT 0))) FROM dbo.tbl_name
2、IDENTITY
SELECT RowID=IDENTITY(INT,1,1) INTO #tb1 FROM dbo.tbl_name
SELECT * FROM #tb1
两种方法。
1、ROW_NUMBER()
SELECT RowID=(ROW_NUMBER() OVER(ORDER BY(SELECT 0))) FROM dbo.tbl_name
2、IDENTITY
SELECT RowID=IDENTITY(INT,1,1) INTO #tb1 FROM dbo.tbl_name
SELECT * FROM #tb1