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

ÇóSQLÓï¾äÓÅ»¯¹¤¾ß£¿

ÇóSQLÓï¾äÓÅ»¯¹¤¾ß£¿
Õë¶ÔSQL ServerµÄ
·¢Ë͵½ÎÒÓÊÏäsclsmile@163.com
»òÕ߸øÎÒÒ»¸öÍøÖ·Á´½Ó
¹Ø×¢¡£

http://www.net130.com/class/oracle_datum_soft/Embarcadero%20SQLTuner%202.0.2.rar

http://space.itpub.net/?uid-16436858-action-viewspace-itemid-520854

http://www.net130.com/CMS/Pub/oracle/oracle_material/oracle_material_soft/173530.htm

ºÇºÇ,ÍøÕ¾ÉϵÄ,ûÓùý

»¹ÓÐÕ⹤¾ß,Ë­ÓÐ?Ò²¸øÎÒÒ»¸ö.

ÒýÓÃ
»¹ÓÐÕ⹤¾ß,Ë­ÓÐ?Ò²¸øÎÒÒ»¸ö.

ºÇºÇ


Ïà¹ØÎÊ´ð£º

Á½¸öµ¼¹¹sql serverÊý¾Ý¿â,Êý¾Ýµ¼Èëµ¼³öÎÊÌâ

ÏÖÔÚÓÐÁ½¸öÒì¹¹µÄsql serverÊý¾Ý¿â,ÎÒÏ뽫µÚÒ»¸ö±íÖеÄÊý¾Ýµ¼Èëµ½µÚ¶þ¸ö±íÖÐ,×Ô¼ºÖ¸¶¨µ¼ÈëÊý¾ÝµÄ×Ö¶Î,ÈçºÎµ¼ÈëÊý¾ÝÄØ,´ó¼ÒÌÖÂÛÒ»ÏÂ?
dts¹¤¾ß

µ¼Èëµ¼³ö¹¤¾ß.

DD

¹þ¹þ£¬¹À¼ÆÕâλÊǵØQIOU¶¼Êܲ»Á˵Ä

Ö±½ÓÐ ......

¾Ý˵SQLÓиö±à¼­Æ÷£¬²»ÖªÈçºÎʹÓ÷¨£¬ÔÚʲôµØ·½£¿

ÒªÊäÈëUSE <Êý¾Ý¿âÃû>ʱ£¬ÒªÓõ½SQL±à¼­Æ÷£¬µ«²»ÖªµÀÔÚʲôµØ·½£¬¸ßÊÖ°ï°ïæѽ£¡

SQL2005  µã»÷ÓÒÉϽǵÄ--н¨²éѯ(N)

Êó標選擇Òª²é詢µÄ數據庫£¬È»á ......

SQL Óï¾ä¡£¡£ Çë½Ì¸ßÊÖ

ÏÈÀ´Ò»¸ö´íÎóÓï¾ä¡£¡£
select * from [aa] where a1 in (select max(a2),a1 from [aa]  group by a1 )


ÎÒ´óÌåÒâ˼£¬
¶Áȡһ¸öͳ¼ÆÏµÍ³ÖÐ ²»Öظ´µÄ IP °´ÕÕ ×îºóʱ¼äÅÅÐò£¬²¢ÏÔʾ³öËùÓÐ×ֶΡ£¡ ......

sql Óï¾ä

±íA
¿¨ºÅ         ʱ¼ä
1                 null
2                 null
3 & ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ