SQL Server 2005 ²éѯ·ÖÎöÖÐɾ³ýÊý¾Ý¿â
USE master
GO
DECLARE @dbname sysname
SET @dbname='TEST' --Õâ¸öÊÇҪɾ³ýµÄÊý¾Ý¿â¿âÃû
DECLARE @s NVARCHAR(1000)
DECLARE tb CURSOR local FOR
SELECT s='KILL '+CAST(spid AS NVARCHAR)
from master..sysprocesses
WHERE dbid=DB_ID(@dbname)
OPEN tb
FETCH next from tb INTO @s
WHILE @@FETCH_STATUS=0
BEGIN
EXEC(@s)
FETCH next from tb INTO @s
END
CLOSE tb
DEALLOCATE tb
EXEC('DROP DATABASE ['+@dbname+']')
Ïà¹ØÎĵµ£º
´óÐÍϵͳµÄÉú²ú»·¾³£¬Ò»°ãÇé¿öÏ£¬ÎÒÃÇÆÀ¼ÛÒ»Ìõ²éѯÊÇ·ñÓÐЧÂÊ£¬¸ü¶àµÄÊǹØ×¢Âß¼ IO( ÖÁÓÚΪʲô£¬»ØÍ·²¹Ò»Æª ) ¡£ÎÒÃdz£Ëµ£¬“Òª½¨±ëº·µÄË÷Òý”¡¢“Ҫд¸ßЧµÄ SQL ”£¬Æäʵ×îÖÕÄ¿µÄ¾ÍÊÇÔÚÏàͬ½á¹û¼¯Çé¿öÏ£¬¾¡¿ÉÄܼõÉÙÂß¼ IO ¡£
1.1 where Ìõ¼þµÄÁÐÉ϶¼µÃÓÐͳ¼ÆÐÅ ......
-- sql 2005
1.rownumÓ÷¨
select * from(
Select rownum=row_number() over(order by 1),* from table
)a where rownum between  ......
Ê×ÏȽéÉÜÒ»ÏÂʲôÊÇ´æ´¢¹ý³Ì£º´æ´¢¹ý³Ì¾ÍÊǽ«³£ÓõĻòºÜ¸´ÔӵŤ×÷£¬Ô¤ÏÈÓÃSQLÓï¾äдºÃ²¢ÓÃÒ»¸öÖ¸¶¨µÄÃû³Æ´æ´¢ÆðÀ´£¬²¢ÇÒÕâÑùµÄÓï¾äÊÇ·ÅÔÚÊý¾Ý¿âÖе쬻¹¿ÉÒÔ¸ù¾ÝÌõ¼þÖ´Ðв»Í¬SQLÓï¾ä£¬ ÄÇôÒÔºóÒª½ÐÊý¾Ý¿âÌṩÓëÒѶ¨ÒåºÃµÄ´æ´¢¹ý³ÌµÄ¹¦ÄÜÏàͬµÄ·þÎñʱ£¬Ö»Ðèµ÷ÓÃexecute,¼´¿É×Ô¶¯Íê³ÉÃüÁî¡£
¡¡¡¡Çë´ó¼ÒÀ´Á˽âһϴ洢¹ý³Ìµ ......
´´½¨sqlÊý¾Ý¿â¸´ÖƵķ¢²¼¡¢¶©ÔĵÄÎÊÌâ´¦Àí[ת]
²Ù×÷ʹÓõÄһЩ¼¼ÇÉ(ÊÂÎñ¸´ÖÆÀàÐÍ):
1.ÈçºÎÐÞ¸ÄÒ»¸öÒѾ·¢²¼µÄ±íµÄÊôÐÔ?
½«·¢²¼ËùÓж©ÔÄɾ³ý,(·¢²¼²»ÓÃɾ³ý),¾Í¿ÉÒÔÔÚ·¢²¼ÊôÐÔµÄÏîÄ¿ÖÐÈ¡Ïû±í,È»ºó¾Í
¿ÉÒÔÐÞ¸ ......
Ðл»ÁУº
--> Éú³É²âÊÔÊý¾Ý±í: [tb]
IF OBJECT_ID('[tb]') IS NOT NULL
DROP TABLE [tb]
GO
CREATE TABLE [tb] ([a] [int],[b] [int],[c] [int])
INSERT INTO [tb]
SELECT '3','9','5' UNION ALL
SELECT '5','2','7' UNION ALL
SELECT '6','3','8'
--SELECT * from [tb]
-->SQL²éѯÈçÏ ......