今天需要篩選出來庫中行數不為零的表,于是動手寫下了如下存儲過程。
CREATE PROCEDURE TableCount AS BEGINSET NOCOUNT ONDECLARE @t1 AS TABLE(id INT IDENTITY,NAME NVARCHAR(50),RowsCount INT)DECLARE @indexid AS INTDECLARE @maxid AS INTDECLARE @count AS INTDECLARE @name AS VARCHAR(50)DECLARE @sqlstr AS NVARCHAR(500)INSERT INTO @t1 SELECT NAME,0 FROM dbo.sysobjects WHERE type='U'SELECT @maxid=MAX(id),@indexid=1 FROM @t1WHILE(@maxid>=@indexid)BEGINSELECT @name = name FROM @t1 WHERE id=@indexidSET @sqlstr = 'SELECT @Count1=COUNT(0) FROM '+@nameexec sp_executesql @sqlstr,N'@Count1 int output',@count outputUPDATE @t1 SET RowsCount=@count WHERE id=@indexidSET @indexid=@indexid+1ENDSET NOCOUNT OFFSELECT * FROM @t1 WHERE RowsCount>0ENDGOEXEC TableCountGO
這樣大功告成!
事后上網查閱相關資料發現有更簡便的方法,貼在這里供大家參考吧。
CREATE TABLE #temp (Name VARCHAR (255), RowsCount INT)EXEC sp_MSforeachtable 'INSERT INTO #temp SELECT ''?'', COUNT(0) FROM ?'SELECT Name, RowsCount FROM #temp WHERE RowsCount>0 ORDER BY NameDROP TABLE #temp
注: 系統存儲過程sp_MSforeachtable和sp_MSforeachdb,用于遍歷每個表和遍歷每個數據庫。
總結,遇到問題還是先查一下有沒有現成的方法能省不少的時間的,而且還可以學習到新的知識。
@空紫竹提供的更快捷的方法: (2015-03-27編輯)
select rows,OBJECT_NAME(id) as TABLENAME from sysindexes where indid=0
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