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

ÈýÖÐSQL ·ÖÒ³·½·¨Ð§ÂÊ·ÖÎö

ÈýÖÖSQL·ÖÒ³·¨Ð§ÂÊ·ÖÎö
±íÖÐÖ÷¼ü±ØÐëΪ±êʶÁУ¬[ID] int IDENTITY (1,1)
1.·ÖÒ³·½°¸Ò»£º(ÀûÓÃNot InºÍSELECT TOP·ÖÒ³)
¡¡Óï¾äÐÎʽ£ºÀûÓÃNot InºÍSELECT TOP·ÖÒ³) ЧÂÊÖУ¬ÐèҪƴ½ÓSQLÓï¾ä
  SELECT TOP 10 * from  TestTable WHERE (Id  NOT  IN (SELECT  TOP  20    id  from        TestTable ORDER BY id )) ORDER BY ID
2.·ÖÒ³·½°¸¶þ£º(ÀûÓÃID´óÓÚ¶àÉÙºÍSELECT TOP·ÖÒ³)
  Óï¾äÐÎʽ£ºÀûÓÃID´óÓÚ¶àÉÙºÍSELECT TOP·ÖÒ³)ЧÂÊ×î¸ß£¬ÐèҪƴ½ÓSQLÓï¾ä
  SELECT TOP 10 * from  TestTable WHERE (ID  > (SELECT    MAX(id)    from (SELECT  TOP    20  id from    TestTable ORDER BY id) AST))
3.·ÖÒ³·½°¸Èý£º(ÀûÓÃSQLµÄÓÎ±ê´æ´¢¹ý³Ì·ÖÒ³)
Óï¾äÐÎʽ£ºÀûÓÃSQLµÄÓÎ±ê´æ´¢¹ý³Ì·ÖÒ³) ЧÂÊ×î²î£¬µ«ÊÇ×îΪͨÓÃ
  create procedure SqlPager
@sqlstr nvarchar(4000),                --²éѯ×Ö·û´®
@currentpage int,                      --µÚNÒ³
@pagesize int                        --ÿҳÐÐÊý
as
set nocount on
declare @P1 int,                      --P1ÊÇÓαêµÄid
  @rowcount int
exec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1,@rowcount=@rowcount output
select ceiling(1.0*@rowcount/@pagesize) as ×ÜÒ³Êý--,@rowcount as ×ÜÐÐÊý,@currentpage as µ±Ç°Ò³
set @currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize
exec sp_cursorclose @P1
set nocount off


Ïà¹ØÎĵµ£º

mysqlÖеÄSQL·ÖÎö¹¤¾ß

Another Look at MySQL 5.1's SQL Diagnostic Tools
http://dev.mysql.com/tech-resources/articles/mysql_51_diagnostic_tools.html Êý¾Ý¿âµÄÐÔÄܾö¶¨ÒòËØ£º
£¨1£©Êý¾Ý¿âµÄÉè¼Æ
£¨2£©SQL´úÂë ¿ÉÒÔÓÃÒÔϼ¸ÖÖ·½·¨À´½â¾öһЩÐÔÄÜÎÊÌ⣺
£¨1£©Ë÷Òý
£¨2£©Ë®Æ½·ÖÇø
£¨3£©ÁÐÊÊÓ¦µÄ±í
colum ......

SQL Server ´æ´¢¹ý³Ì

SQL   Server   7.0   ÈëÃÅ(7)  
   
  ʱ¼ä£º2001/02/06   11:57   ×÷Õߣº¶¹¶¹   CHINAASP    
     
   
   
  ¡¡ &nbs ......

¡¾ÔÓ¼Ç ¹ØÓÚ·ÃÎÊSQL SERVER2005 µÄϵͳ¶ÔÏó¡¿

SQL SERVERά»¤×ÅÒ»×é±í,´æ´¢ËùÓжÔÏó,Êý¾ÝÀàÐÍ,Ô¼Êø,ÅäÖÃÑ¡Ïî¼°SQLÄÜ·ÃÎʵÄ×ÊÔ´,ÕâЩ±í³ÆÎªÏµÍ³Ä¿Â¼(ϵͳ»ù±¾±í).
ÎÒÃÇÔÚSQL SERVER2005ÀïÓкܶàÖÖ·½·¨À´·ÃÎÊÔªÊý¾Ý.Ò»°ãÊÇʹÓÃĿ¼ÊÓͼºÍϵͳº¯Êý,ÐÅÏ¢¼Ü¹¹ÊÓͼֻÄܰüº¬ËüÃÇÈ«²¿µÄÒ»²¿·Ö.
×î¼Ñ½Ó¿Ú£ºÄ¿Â¼ÊÓͼ
 Ä¿Â¼ÊÓͼ¶¼Î»ÓÚSYS¼Ü¹¹ÏÂ,°üÀ¨Á˶¯Ì¬¹ÜÀí¶ÔÏó(DMVºÍDM ......

SQL ²éѯ¡°½ö½ö¡±ÖÁÉÙ¡°È«²¿¡±µÄÎÊÌâ

“È«²¿µÄÎÊÌâ”ÔÚÉÏһƪÖÐÒѾ­Ð´¹ýÒ»µãÁË¡£
“½ö½ö”
£ºÕâ¸öÎÊÌâ¿ÉÒÔʹÓöà±íÁ¬½ÓÀ´´¦Àí¡£ÀýÈ磺²éѯ½ö½öÑ¡ÐÞÁ˿γÌAºÍ¿Î³ÌBµÄѧÉúµÄÐÅÏ¢,sqlÈçÏ£º
ÆäÖбístudent¶¨ÒåÁËѧÉúµÄÐÅÏ¢¡£transcript¶¨ÒåÁËѧÉúµÄÑ¡¿ÎÇé¿ö¡£crscode×ֶαíʾ¿Î³Ì´úÂë¡£
select s.id
from student s,transcript t1,transc ......

SqlÊý¾ÝÓÅ»¯·½°¸

1¡¢Ê¹ÓÃË÷ÒýÀ´¸ü¿ìµØ±éÀú±í¡£
ȱʡÇé¿öϽ¨Á¢µÄË÷ÒýÊÇ·ÇȺ¼¯Ë÷Òý£¬µ«ÓÐʱËü²¢²»ÊÇ×î¼ÑµÄ¡£ÔÚ·ÇȺ¼¯Ë÷ÒýÏ£¬Êý¾ÝÔÚÎïÀíÉÏËæ»ú´æ·ÅÔÚÊý¾ÝÒ³ÉÏ¡£ºÏÀíµÄË÷ÒýÉè¼ÆÒª½¨Á¢ÔÚ¶Ô¸÷ÖÖ²éѯµÄ·ÖÎöºÍÔ¤²âÉÏ¡£
Ò»°ãÀ´Ëµ£º
a.ÓдóÁ¿Öظ´Öµ¡¢ÇÒ¾­³£Óз¶Î§²éѯ£¨ > ,< £¬> =,< =£©ºÍorder by¡¢group by·¢ÉúµÄÁУ¬¿É¿¼
Âǽ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ