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

ÔÚSQLÓï¾äÖнØÈ¡×Ö·û´®º¯ÊýµÄÓ¦ÓÃ


ÎÊÌâÒ» 
ÓÐÕâÑùµÄÒ»¸öÎÊÌ⣬Êý¾Ý¿âÖÐÓÐÁ½¸ö±í£¬·Ö±ðÊÇGuest,Hotel£¬¼´ÂÿÍÐÅÏ¢±íºÍÂùÝÐÅÏ¢±í£¬Guest±íÖÐÓÐÒ»¸öÂÿͱàÂëµÄ×ֶΣ¬Õâ¸ö×ֶεÄÓÐ20룬ËüµÄǰ10λ´ú±íÕâ¸öÂÿÍËùסµÄÂùݣ¬ÏÖÔÚµÄÎÊÌâÊÇÒª¸ù¾ÝGuest±íÖеÄÂÿͱàÂë×Ö¶ÎÐÅÏ¢²éµ½ËûËùסµÄÂùݵÄÃû³ÆºÍÂùݵØÖ·£¡
ÎÊÌâ½â¾ö:
SQL SERVERµÄSQLÓï¾ä£ºselect Guest.ÂÿͱàÂë,Guest.ÂÿÍÐÕÃû,Hotel.ÂùÝÃû³Æ,Hotel.ÂùݵØÖ· from Guest,Hotel where Hotel.ÂùݱàÂë=SubString(Guest.ÂÿͱàÂë,1,10)
OracleµÄSQLÓï¾ä£ºselect Guest.ÂÿͱàÂë,Guest.ÂÿÍÐÕÃû,Hotel.ÂùÝÃû³Æ,Hotel.ÂùݵØÖ· from Guest,Hotel where Hotel.ÂùݱàÂë=SubStr(Guest.ÂÿͱàÂë,1,10)
                                                                                 ÎÊÌâ¶þ
  
A.½ØÈ¡´Ó×Ö·û´®×ó±ß¿ªÊ¼N¸ö×Ö·û
   Declare @S1 varchar(100)
   Select @S1='http://www.xrss.cn'
   Select Left(@S1,4)
   ------------------------------------
   ÏÔʾ½á¹û: http
   B.½ØÈ¡´Ó×Ö·û´®Óұ߿ªÊ¼N¸ö×Ö·û(ÀýÈçÈ¡×Ö·ûwww.163.com)
   Declare @S1 varchar(100)
   Select @S1='http://www.xrss.cn'
   Select right(@S1,11)  
   ------------------------------------
   ÏÔʾ½á¹û: www.163.com £¿£¿£¿£¿
   C.½ØÈ¡×Ö·û´®ÖÐÈÎÒâλÖü°³¤¶È(ÀýÈçÈ¡×Ö·ûwww)
   Declare @S1 varchar(100)
   Select @S1='http://www.xrss.cn'
   Select SUBSTRING(@S1,8,3)  
   ------------------------------------
   ÏÔʾ½á¹û: www.163.com  
   ÒÔÉÏÀý×Ó½ÔÊÇÒÑÖª½ØÈ¡Î»Öü°³¤¶È,ÏÂÃæ½éÉÜδ֪λÖõÄÀý×Ó
2.½ØÈ¡Î´ÖªÎ»Öõĺ¯Êý
&n


Ïà¹ØÎĵµ£º

sql 2005 ´æ´¢¹ý³Ì·ÖÒ³ java ´úÂë

 create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',         
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ ......

ʹÓÃoracleµÄ10046ʼþ¸ú×ÙSQLÓï¾ä

Ô­ÎĵØÖ·£ºhttp://www.blogjava.net/xingcyx/archive/2007/01/09/92638.html
ʹÓÃoracleµÄ10046ʼþ¸ú×ÙSQLÓï¾ä
ÎÒÃÇÔÚ·ÖÎöÓ¦ÓóÌÐòÐÔÄÜÎÊÌâµÄʱºò£¬¸ü¶àµØÐèÒª¹Ø×¢ÆäÖÐSQLÓï¾äµÄÖ´ÐÐÇé¿ö£¬ÒòΪͨ³£Ó¦ÓóÌÐòµÄÐÔÄÜÆ¿¾±»áÔÚÊý¾Ý¿âÕâ±ß£¬Òò´ËÊý¾Ý¿âµÄsqlÓï¾äÊÇÎÒÃÇÓÅ»¯µÄÖØµã¡£ÀûÓÃOracleµÄ10046ʼþ£¬¿ÉÒÔ¸ú×ÙÓ¦ÓóÌÐòËùÖ´ ......

ORACLE SQLÓÅ»¯

ORACLE SQLÓÅ»¯
£¨1£© Ñ¡Ôñ×îÓÐЧÂʵıíÃû˳Ðò(Ö»ÔÚ»ùÓÚ¹æÔòµÄÓÅ»¯Æ÷ÖÐÓÐЧ)£º
ORACLE µÄ½âÎöÆ÷°´ÕÕ´ÓÓÒµ½×óµÄ˳Ðò´¦Àífrom ×Ó¾äÖеıíÃû£¬from ×Ó¾äÖÐдÔÚ×îºóµÄ±í
(»ù´¡±ídriving table)½«±»×îÏÈ´¦Àí£¬ÔÚfrom ×Ó¾äÖаüº¬¶à¸ö±íµÄÇé¿öÏÂ,Äã±ØÐëÑ¡Ôñ¼Ç
¼ÌõÊý×îÉٵıí×÷Ϊ»ù´¡±í¡£Èç¹ûÓÐ3¸öÒÔÉϵıíÁ¬½Ó²éѯ, ÄǾÍÐè ......

×î½üµÄÁ½ÌõsqlЧÂÊÓÅ»¯ÐĵÃ

µÚÒ»Ìõ£º
select * from where field in (1,2,3)   ÕâÖÖд·¨Ó¦¸ÃÉáÆúÁË£¬¶øÓ¦¸ÃÕâÑùд£º
select * from table where field = 1 or field = 2 or field = 3 
ÎªÊ²Ã´ÄØ£¿
·²ÊÂÖ»ÓÐ×ö¹ý²ÅÖªµÀ£¬×Ô¼º½¨¸ö±í£¬²åÈë10WÌõ²âÊÔÊý¾Ý£¬ÓÃsql²âÊÔһϱãÖª£¬ÒòΪ¹¤×÷±ãÀû£¬ÎÒÔÚ²úÆ·»úºÍÍâÍø²âÊÔ»ú¶¼ÒѾ­²âÊÔ¹ý£ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ