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

ÇóÒ»Ìõ¼òµ¥µÄoracleÓï¾ä

ÈçϽ¨Á¢±í
create table tb
(
blogid number,
blogclass varchar2(30)
)
insert into tb values(1,'ÈËÉú');
insert into tb values(2,'ѧϰ');
insert into tb values(3,'¹¤×÷');
insert into tb values(4,'¸ÐÇé');
insert into tb values(5,'ÅóÓÑ');
insert into tb values(6,'ÓéÀÖ');


ÎÒÏëÒÔblogidΪ²ÎÊý´«È룬±ÈÈç´«Èë blogid=3 °É
¾ÍÊÇ°Ñ Âú×ãÌõ¼þµÄ½á¹ûÌáǰ£¬ÆäËûµÄ°´ÕÒÉýÐòÅÅÁУ¡
²»ÖªµÀÎÒ˵Ã÷°×ÁËûÓÐ

·µ»Ø½á¹ûΪ
3 ¹¤×÷
1 ÈËÉú
2 ѧϰ
4 ¸ÐÇé
5 ÅóÓÑ
6 ÓéÀÖ
ÎÒÏëÓÃoracleÊý¾Ý¿âʵÏÖÕâ¸ö½á¹û£¡Çë¸ßÊÖÖ¸µãһϣ¡ÃÔãµÄСº¢×Ó£¡


¶àл¸ßÈËÖ¸µã£¡£¡
select * from t order by decode(blogid,3,1,2), blogid;

select * from tb
order by decode(blogid,:blogid,1,2),blogid

:blogid±íʾÄãµÄ´«Èë²ÎÊý

½èÓÃÂ¥Éϵģº
select * from tb
order by decode(blogid,:blogid,0,blogid),blogid

:blogid±íʾÄãµÄ´«Èë²ÎÊý

ÒýÓÃ
select * from t order by decode(blogid,3,1,2), blogid;
order by»¹¿ÉÒÔÕâÑùÓð¡ ³¤¼ûʶÁË
Äܲ»Äܽ²½²¾ßÌåµÄÖ´Ðйý³ÌÊÇÔõÑùµÄ

ÎÒ¸ÕÊÔÁËÏ ½á¹ûÊǶԵÄ
SQL> select * from tb;

    BLOGID BLOGCLASS
---------- ------------------------------
        1 ÈËÉú
  &nb


Ïà¹ØÎÊ´ð£º

ÇóÖúORACLEÅúÁ¿Çå³ý±íÊý¾ÝµÄÎÊÌâ - Oracle / ¿ª·¢

±ÈÈçÎÒÓÐtestA¡¢testB¡¢testCÈý¸ö±í
ÎÒÏÖÔÚÐèҪдһ¸öÅú´¦Àí»òÕ߽ű¾¸ø±ðÈË ×÷ÓþÍÊÇÖ´ÐÐÕâ¶ÎÓï¾ä¿ÉÒÔÇå³ýÕâÈý¸ö±íÀïÃæµÄÊý¾Ý ¾ÍÊÇÒ»¸ö³õʼ»¯µÄÒâ˼
ÄÄλ¸ßÈ˰ïÖúϰ¡ Ò»¸öÊý¾Ý¿âС°×ÔÚ´ËÇó¾ÈÀ²
SQL code:
......

oracle·þÎñ״̬ÏÔʾ ¡°Í£Ö¹¡±

ÎÒÊÇÓÃÔ¶³Ì×ÀÃæÁ¬²Ù×÷·þÎñÆ÷ÉϵÄÊý¾Ý¿â¡£
ÔÚ´´½¨Ò»¸öÓû§Ö®ºó£¬ÔÙÓÃPLSQLµÇ¼£¬ÔòPLSQLËÀµôÁË¡£
ÎҹصôPLSQLÖ®ºó£¬ÓÃÆäËûÓû§Ò²²»ÄܵǼ¡£

ÎÒ°ÑoracleµÄ·þÎñÍ£Ö¹£¬½á¹û¾ÍÊÇoracleµÄ·þÎñ״̬¾ÍÍ£ÁôÔÚ¡°Í ......

oracle ¿Õ¼äÊý¾Ý¶ÁÈ¡

ÏÖÓÐÒ»¸ö´æ·ÅÁ˿ռäÊý¾ÝµÄ±í£¬ÎÒÏëͨ¹ýsql³ÌÐò£¬°ÑÀïÃæµÄ×ø±êÐÅÏ¢¶Á³öÀ´£¬ÄÄλ°ïæ¸øÐ´¶Î³ÌÐò°É¡£
Çë°ÑÄãµÄ ±í½á¹¹¡¢²âÊÔÊý¾Ý¡¢ºÍ×îÖյĽá¹û Ìù³öÀ´£¬ÕâÑùÁýͳ£¬Ôõô°ïÄã¡£¡£¡£¡£

ÌùÊý¾ÝÉÏÀ´!

ÒýÓÃ
ÌùÊý¾ÝÉÏ ......

oracle 10g°²×°µ½85%ʱ±¨´í

¸÷λoracle¸ßÊÖ£¬Çë½ÌÒ»ÏÂΪʲôoracle 10gÔÚ°²×°µ½°Ù·ÖÖ®°ËÊ®ÎåµÄʱºò¾Í±¨´í²»ÄܼÌÐø°²×°£¿

ÄÚ´æ¶à´ó£¿¡¡ÖØÐÂϸöÊý¾Ý¿â°²×°ÊÔÊÔ..

ÒýÓÃ
¸÷λoracle¸ßÊÖ£¬Çë½ÌÒ»ÏÂΪʲôoracle 10gÔÚ°²×°µ½°Ù·ÖÖ®°ËÊ®ÎåµÄʱ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ