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

oracleÆô¶¯ÎÊÌâÒ»°ã½â¾ö·½·¨

oracleÆô¶¯ÎÊÌâ
Ò»£ºÊý¾Ý¿âûÓÐÆô¶¯
#sqlplus /nolog
sql>connect /as sysdba
sql>startup
 
¶þ£º¼àÌý³öÎÊÌâ
µÇ¼DB·þÎñÆ÷
ʹÓÃlsnrctl start/stop¿ªÆô/¹Ø±Õ¼àÌý
ʹÓÃlsnrctl status²é¿´×´Ì¬
ÀíӦΪ£º
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ERPAP)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.3.0 - Production
Start Date                13-5ÔÂ -2010 03:54:14
Uptime                    0 days 5 hr. 49 min. 53 sec
Process ID                4255
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u2/oracle/10g/network/admin/listener.ora
Listener Log File         /u2/oracle/10g/network/log/listener.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ERPAP)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "topprod" has 1 instance(s).
  Instance "topprod", status READY, has 1 handler(s) for this s


Ïà¹ØÎĵµ£º

oracleÖеÄrownumαÁÐÉî²ã·ÖÎö

¶ÔÓÚ Oracle µÄ rownum ÎÊÌ⣬ºÜ¶à×ÊÁ϶¼Ëµ²»Ö§³Ö>,>=,=,between...and£¬Ö»ÄÜÓÃÒÔÉÏ·ûºÅ(<¡¢<=¡¢!=)£¬²¢·Ç˵ÓÃ>,>=,=,between..and ʱ»áÌáʾSQLÓï·¨´íÎ󣬶øÊǾ­³£ÊDz鲻³öÒ»Ìõ¼Ç¼À´£¬»¹»á³öÏÖËÆºõÊÇĪÃûÆäÃîµÄ½á¹ûÀ´£¬ÆäʵÄúÖ»ÒªÀí½âºÃÁËÕâ¸ö rownum αÁеÄÒâÒå¾Í²»Ó¦¸Ã¸Ðµ½¾ªÆæ£¬Í¬ÑùÊÇαÁУ¬rownum Ó ......

ÉîÈëÁ˽âoracleµÄ¸ßˮ루HWM£©

˵µ½HWM,ÎÒÃÇÊ×ÏÈÒª¼òÒªµÄ̸̸ORACLEµÄÂß¼­´æ´¢¹ÜÀí.ÎÒÃÇÖªµÀ,ORACLEÔÚÂß¼­´æ´¢ÉÏ·Ö4¸öÁ£¶È:±í¿Õ¼ä,¶Î,ÇøºÍ¿é.
(1)¿é:ÊÇÁ£¶È×îСµÄ´æ´¢µ¥Î»,ÏÖÔÚ±ê×¼µÄ¿é´óСÊÇ8K,ORACLEÿһ´ÎI/O²Ù×÷Ò²Êǰ´¿éÀ´²Ù×÷µÄ,Ò²¾ÍÊÇ˵µ±ORACLE´ÓÊý¾ÝÎļþ¶ÁÊý¾Ýʱ,ÊǶÁÈ¡¶àÉÙ¸ö¿é,¶ø²»ÊǶàÉÙÐÐ.
(2)Çø:ÓÉһϵÁÐÏàÁÚµÄ¿é¶ø×é³É,ÕâÒ²ÊÇORACLE¿Õ¼ ......

Oracle ±íɾ³ý´óÁ¿Êý¾Ýºó²éѯ±äÂýÎÊÌâ


Oracle ±íɾ³ý´óÁ¿Êý¾Ýºó£¬¼´Ê¹±íÖÐÖ»Óм¸ÐмǼ£¬µ«ÓÃselect count(*) from table À´²éѯ·¢¾õ¶¼²»»áÂíÉϳöÀ´£¬Ô­ÒòÊǸñíµÄ¿Õ¼ä´óÁË£¬²éѯÆðÀ´ºÜÂý¡£½â¾öµÄ·½·¨ÊǰѸñíËùÕ¼Óõıí¿Õ¼äËõС£¬»òÕß˵Êͷűí¿Õ¼ä¡£
alter table XXXX move; ÕâÑù´¦Àíºó¾ÍÊÍ·ÅÁ˱í¿Õ¼äÁË¡£µ«ÊÇÊͷűí¿Õ¼äºó£¬±íµÄÐкÅrowid»á·¢Éú±ä»¯£¬¶ø»ùÓÚ ......

Oracleɾ³ý´ó±í²¢»ØÊÕ¿Õ¼äµÄ¹ý³Ì

½üÈÕÔÚ²éѯijÏîÈÕÖ¾µÄʱºò£¬·¢ÏÖ²éѯ·Ç³£»ºÂý£¬¸ù¾ÝÒÔÍùµÄ¾­ÑéÕâÊÇÓÉÓÚij¸öÈÕÖ¾±í¹ý´óÒýÆðµÄ£¬ÎªÁ˼ӿì²éѯ£¬¾ö¶¨½«´ó²¿·ÖµÄÀúÊ·Êý¾ÝÇ¨ÒÆµ½ÁíÍâÒ»¸ö±íÖУ¬±¾ÎÄÖ÷Òª¼Ç¼ɾ³ýÕâ¸ö´ó±íµÄ¹ý³Ì£¬¾Í½â¾öÎÊÌâ¶øÑÔ»¹Óкܶ෽·¨£¬µ«ÊDZ¾ÎIJàÖØµãÔÚÓÚÈçºÎ´¦Àí´óÊý¾ÝÁ¿É¾³ýµÄ²Ù×÷£¬¼°ÆäÉÆºó¹¤×÷¡£
Ê×ÏÈ¿´¿´ÎÒÃÇÒª×öÊý¾ÝÇ¨ÒÆµÄ±íËùÕ¼µÄ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ