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

Windowsϳ£¼ûOracle·þÎñ½éÉÜ

ÄÇЩ·þÎñÐèÒªÆô¶¯ÐèÒª¿´Äã×Ô¼ºµÄÐèÇó£¬Ïê¼û£º
Windowsϳ£¼ûOracle·þÎñ½éÉÜ£º
£¨1£©OracleServiceSID                       
  Êý¾Ý¿â·þÎñ£¬Õâ¸ö·þÎñ»á×Ô¶¯µØÆô¶¯ºÍÍ£Ö¹Êý¾Ý¿â¡£Èç¹û°²×°ÁËÒ»¸öÊý¾Ý¿â£¬ËüµÄȱʡÆô¶¯ÀàÐÍΪ×Ô¶¯¡£·þÎñ½ø³ÌΪORACLE.EXE£¬²ÎÊýÎļþinitSID.ora£¬ÈÕÖ¾ÎļþSIDALRT.log£¬¿ØÖÆÌ¨SVRMGRL.EXE¡¢SQLPLUS.EXE¡£
  £¨2£©OracleHOME_NAMETNSListener
  ¼àÌýÆ÷·þÎñ£¬·þÎñÖ»ÓÐÔÚÊý¾Ý¿âÐèÒªÔ¶³Ì·ÃÎÊʱ²ÅÐèÒª£¨ÎÞÂÛÊÇͨ¹ýÁíÍâһ̨Ö÷»ú»¹ÊÇÔÚ±¾µØÍ¨¹ý SQL*Net ÍøÂçЭÒé¶¼ÊôÓÚÔ¶³Ì·ÃÎÊ£©£¬²»ÓÃÕâ¸ö·þÎñ¾Í¿ÉÒÔ·ÃÎʱ¾µØÊý¾Ý¿â£¬ËüµÄȱʡÆô¶¯ÀàÐÍΪ×Ô¶¯¡£·þÎñ½ø³ÌΪTNSLSNR.EXE£¬²ÎÊýÎļþ Listener.ora£¬ÈÕÖ¾Îļþlistener.log£¬¿ØÖÆÌ¨LSNRCTL.EXE£¬Ä¬È϶˿Ú1521¡¢1526¡£
  £¨3£©OracleHOME_NAMEAgent
  OEM´úÀí·þÎñ£¬½ÓÊÕºÍÏìÓ¦À´×ÔOEM¿ØÖÆÌ¨µÄÈÎÎñºÍʼþÇëÇó£¬Ö»ÓÐʹÓÃOEM¹ÜÀíÊý¾Ý¿âʱ²ÅÐèÒª£¬ËüµÄȱʡÆô¶¯ÀàÐÍΪ×Ô¶¯¡£·þÎñ½ø³ÌΪDBSNMP.EXE£¬²ÎÊýÎļþsnmp_rw.ora£¬ÈÕÖ¾Îļþnmi.log£¬¿ØÖÆÌ¨LSNRCTL.EXE£¬Ä¬È϶˿Ú1748¡£
  £¨4£©OracleHOME_NAMEClientCache       
  Ãû×Ö»º´æ·þÎñ£¬·þÎñ»º´æÓÃÓÚÁ¬½ÓÔ¶³ÌÊý¾Ý¿âµÄOracle Names Êý¾Ý¡£ËüµÄȱʡÆô¶¯ÀàÐÍÊÇÊÖ¶¯¡£È»¶ø£¬³ý·ÇÓÐһ̨Oracle Names ·þÎñÆ÷£¬·ñÔòûÓбØÒªÔËÐÐÕâ¸ö·þÎñ¡£·þÎñ½ø³ÌΪONRSD.EXE£¬²ÎÊýÎļþNAMES.ORA£¬ÈÕÖ¾ÎļþONRSD.LOG£¬¿ØÖÆÌ¨ NAMESCTL.EXE¡£
  £¨5£©OracleHOME_NAMECMAdmin                       
  Á¬½Ó¹ÜÀí·þÎñ£¬Êǹ¹½¨Connection Manager·þÎñÆ÷ËùÓã¬Ö»ÓзþÎñÆ÷×÷ΪConnection Manager²ÅÐèÒª£¬ËüµÄȱʡÆô¶¯ÀàÐÍÊÇÊÖ¶¯¡£·þÎñ½ø³ÌΪCMADMIN.EXE£¬²ÎÊýÎļþCMAN.ORA£¬ÈÕÖ¾ÎļþCMADM_PID.TRC£¬¿ØÖÆÌ¨CMCTL.EXE£¬Ä¬È϶˿Ú1830¡£
  £¨6£©OracleHOME_NAMECMan                       
  Á¬½ÓÍø¹Ø·þÎñ£¬Êǹ¹½¨Connection Manager·þÎñÆ÷ËùÓã¬Ö»ÓзþÎñÆ÷×÷ΪConnection Manager²ÅÐèÒª£


Ïà¹ØÎĵµ£º

OracleÓû§¡¢½ÇÉ«¡¢È¨ÏÞºÍϵͳ×ÊÔ´¹ÜÀí³£ÓòÙ×÷

²éѯÓû§ÐÅÏ¢
SELECT USERNAME,DEFAULT_TABLESPACE, TEMPORARY_TABLESPACE, PROFILE, ACCOUNT_STATUS, CREATED from dba_users; ²éѯÓû§¿Õ¼äʹÓúÍÉÏÏÞÇé¿ö
SELECT username, tablespace_name, bytes/1024/1024 space_used_in_mb, max_bytes/1024/1024 max_space_in_mb from dba_ts_quotas; ´´½¨ ......

Oracle ËÄÉáÎåÈ뺯Êý

ceil(number)   ´óÓÚ»òµÈÓÚµÄ×îСÕûÊý  
  floor(number)   СÓÚ»òµÈÓÚµÄ×î´óÕûÊý  
  trunc(number,m)   ÔÚÕûÊýnumberµÄmλÖýصôm¼°ÒÔºóµÄλÊý:  
  Èç:trunc(15.78,1)=15.7    
        trunc(15.78,-1)=15;  
  round ......

oracleÖÐblock

°´×ÊÁÏ˵V$BH²é¿´±íÀ´ÏÔʾÊý¾Ý¿âÀïÿ¸ö¶ÔÏóÀàÐ͵ÄÊý¾Ý»º³åÇøÀïÊý¾Ý¿éµÄÊýÁ¿.
È»ºó²éѯV$bh
select
   owner, object_name                 
  from
   dba_objects o,
   v$bh      &nbs ......

ORACLE Ò»Ö¶Á(Consistent Read)µÄ²½Öè

1. Read the Data Block.
2. Read the Row Header.
3. Check the Lock Byte to determine whether there's an ITL entry.
4. Read the ITL entry to determine the Transaction ID (Xid).
5. Read the Transaction Table using the Transaction ID. If the transaction has been committed and has a System Commit ......

ѧϰ¡¶Oracle 9i10g±à³ÌÒÕÊõ¡·µÄ±Ê¼Ç (Ê®Èý) Ë÷Òý

1.¸ÅÊö
Ë÷ÒýÊÇÓ¦ÓÃÉè¼ÆºÍ¿ª·¢µÄÒ»¸öÖØÒª·½Ãæ¡£Èç¹ûÓÐÌ«¶àµÄË÷Òý£¬DML µÄÐÔÄܾͻáÊܵ½Ó°Ïì¡£Èç¹ûË÷ÒýÌ«
ÉÙ£¬ÓÖ»áÓ°Ïì²éѯ£¨°üÀ¨²åÈë¡¢¸üкÍɾ³ý£©µÄÐÔÄÜ¡£ÒªÕÒµ½Ò»¸öºÏÊÊµÄÆ½ºâµã£¬Õâ¶ÔÓÚÓ¦ÓõÄÐÔÄÜÖÁ¹Ø
ÖØÒª¡£
ÎÒ³£³£·¢ÏÖ£¬ÈËÃÇÔÚÓ¦Óÿª·¢ÖÐ×ÜÊÇʺó²ÅÏëÆðË÷Òý¡£ÎÒ¼á³ÖÈÏΪÕâÊÇÒ»ÖÖ´íÎóµÄ×ö·¨¡£Èç¹ûÄãÖª
µÀÊý¾Ý½«ÈçºÎ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ