Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

°²×°SQL Server 2005ÐÔÄܼàÊÓÆ÷¼ÆÊýÆ÷ÒªÇó (´íÎó)

ÊÖ¶¯ÉèÖüÆÊýÆ÷×¢²á±íÏîµÄÔöÁ¿ :
     1.ÔÚ Microsoft Windows 2003 »ò Windows XP ×ÀÃæÉÏ£¬ÒÀ´Îµ¥»÷“¿ªÊ¼”¡¢“ÔËÐД£¬È»ºóÔÚ“´ò¿ª”ÖмüÈë regedit.exe£¬ÔÙµ¥»÷“È·¶¨”¡£ÔÚ Windows 2000 ÖУ¬Ê¹Óà regedt32.exe Æô¶¯×¢²á±í±à¼­Æ÷¡£
     2.¶¨Î»µ½ÒÔÏÂ×¢²á±íÏ
     [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib]
     "Last Counter"=dword:00000ed4 (5276)
     "LastHelp"=dword:00000ed5 (5277)
     3.ÉÏÒ»²½µÄ“Last Counter”Öµ (5276) ±ØÐëÓëÒÔÏÂ×¢²á±íÏîÖГPerflib\004”µÄ“Counter”ÏîµÄ×î´óֵƥÅ䣬²¢ÇÒÉÏÒ»²½µÄ“Last Help”Öµ (5277) ±ØÐëÓëÒÔÏÂ×¢²á±íÏîÖГPerflib\004”µÄ“Help”ÏîµÄ×î´óֵƥÅä¡£
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib\009]
×¢Òâ 009Öд洢µÄÊÇÓ¢Îİ汾µÄ¼ÆÊýÆ÷(Èç¹ûÄã°²×°µÄÊÇÓ¢ÎİæMicrosoft SQL Server2005ÔòÐÞ¸ÄPerflib\009)£¬004Öд洢µÄÊÇÖÐÎİ汾µÄ¼ÆÊýÆ÷(Èç¹ûÄã°²×°µÄÊÇÖÐÎİæMicrosoft SQL Server2005ÔòÐÞ¸ÄPerflib\004)¡£“Last Counter”ºÍ“Last Help”ÖµÊÇÓÉ Windows ¶¯Ì¬·ÖÅäµÄ£»ÕâÁ½¸öÖµ»áÒò¼ÆËã»úµÄ²»Í¬¶ø²»Í¬¡£


Ïà¹ØÎĵµ£º

²é¿´SQL Server2005°æ±¾¼°²¹¶¡°æ±¾ÐÅÏ¢

SQL Server2005°æ±¾ºÅ£º
Ҫȷ¶¨ËùÔËÐÐµÄ SQL Server 2005 µÄ°æ±¾£¬ÇëʹÓà SQL Server Management Studio Á¬½Óµ½ SQL Server 2005£¬È»ºóÔËÐÐÒÔÏ Transact-SQL Óï¾ä£º(´ËSQLÓï¾äͬÑùÊÊÓÃÓÚSQL2000)
SELECT SERVERPROPERTY('productversion'), SERVERPROPERTY ('productlevel'), SERVERPROPERTY ('edition')
²éѯ½á¹ûÈçÏ£ ......

sql server 2005´¥·¢Æ÷ѧϰ±Ê¼Ç£¨Ò»£©

        ´¥·¢Æ÷ʵ¼ÊÉϾÍÊÇÒ»ÖÖÌØÊâÀàÐ͵Ĵ洢¹ý³Ì£¬ÆäÌØÊâÐÔ±íÏÖÔÚ£ºËüÊÇÔÚÖ´ÐÐÌØ¶¨µÄT-SQL ×Ô¶¯Ïà¼ÓµÄ¡£
   
        ´¥·¢Æ÷·ÖΪÁ½Àࣺ 
            &nbs ......

SQL SERVER 2005 ¼ò½é


      SQL SERVER 2005 ¼ò½é
    Ò»Ö±ÒÔÀ´£¬T-SQL¶¼ÊÇÈÝÒ×ÉÏÊֵĽṹ»¯²éѯÓïÑÔ£¬Ëæ×ÅSQL ServerµÄ°æ±¾Ñݽø£¬³ýÁËÄÚ²¿¹¦ÄÜÔö¼Ó£¬
T-SQLÒ²´ó·ùÀ©ÔöÁËеIJéѯָÁî¡£ÀýÈ磺XQuery¡¢È¡µÃÅÅÃû˳ÐòµÄº¯Êý¡¢¼¯ºÏÔËËã´îÅäOVERÔËËã·û¡¢TOPÔËËã·û¿ÉÒÔ´îÅä±äÁ¿»ò×Ó²éѯ£¬ÒÔ¼°Í ......

¹ØÓÚSQL SERVER Êý¾Ý²ð·Ö

if object_id('tb') is not null drop table tb
go
create table tb([A] varchar(10),[B] int)
insert tb
select 'bcd',1 union all
select 'bcde',2 union all
select 'cd',3
go
¸öÈË·ÖÎöÕâµÀÌâµÄ˼·ÊÇ£º
ͨ¹ýSubstring() À´Ñ­»··Ö¸î B ÁÐϵÄ×Ö·û´®¡£¡£
--ÏëµÃµ½µÄ½á¹û£º
/**
a    b& ......

sql·ÖÒ³Á½·½°¸

±íÖÐÖ÷¼ü±ØÐëΪ±êʶÁУ¬[ID] int IDENTITY (1,1)
1.·ÖÒ³·½°¸Ò»£º(ÀûÓÃNot InºÍSELECT TOP·ÖÒ³)
Óï¾äÐÎʽ£º
SELECT TOP Ò³¼Ç¼ÊýÁ¿ *
from ±íÃû
WHERE (ID NOT IN
  (SELECT TOP (ÿҳÐÐÊý*(Ò³Êý-1)) ID
  from ±íÃû
  ORDER BY ID))
  ORDER BY ID
//×Ô¼º»¹¿ÉÒÔ¼ÓÉÏһЩ²éѯÌõ¼þ
Àý:
sele ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ