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

oracleÎÊÌâÖ®Ò»£º±¾»úÁ¬½ÓÊý¾Ý¿â·þÎñÆ÷

½ñÌìÔÚnet managerÅäÖñ¾µØ·þÎñʱ³öÏÖÕâÑùµÄÎÊÌâ
ORA-12514: TNS:listener could not resolve SERVICE_NAME given in connect descriptor
ÔÚgoogleÉÏËÑË÷µÃµ½Èô¸É´ð°¸£¬×ÜÊDz»¶Ô£¬ºóÀ´ÔÚͬʵİïÖúϽâ¾öÁËÎÊÌ⣬ÏÖÔÚ×ܽáһϸú´ó¼Ò·ÖÏí¡£
1¡¢Ñ¡Öб¾µØ——·þÎñÃüÃû£¬Ôڱ༭Öд´½¨
2¡¢ÊäÈënet·þÎñÃû£¬×¢ÒâÕâÊÇÄãÒª·ÃÎʵĻúÆ÷µÄ·þÎñÃû£¬²»ÊÇËù·ÃÎÊ»úÆ÷µÄÊý¾Ý¿âÃû
3¡¢Ä¬ÈÏTCP/IPЭÒé
4¡¢Ö÷»úÃû£¬Ëù·ÃÎÊ»úÆ÷µÄipµØÖ·
5¡¢·þÎñÃû£¬ÊÇËù·ÃÎʵÄÊý¾Ý¿âÃû£¬Ç§ÍòҪעÒâÕâ¸ö·þÎñÃû²»Òª¸únet·þÎñÃû»ìÏý£¬·ñÔò¾Í»á³öÏÖÒÔÉϵĴíÎó
6¡¢µã»÷²âÊÔ£¬²âÊԳɹ¦¾ÍÈ¥Á¬½ÓÊý¾Ý¿â£¬²»³É¹¦·µ»Ø¼ì²éÅäÖÃ


Ïà¹ØÎĵµ£º

OracleÊý¾Ý¿âÖÐÐòÁÐÓ÷¨½²½â

ÐòÁÐ(SEQUENCE)ÊÇÐòÁкÅÉú³ÉÆ÷£¬¿ÉÒÔΪ±íÖеÄÐÐ×Ô¶¯Éú³ÉÐòÁкţ¬²úÉúÒ»×éµÈ¼ä¸ôµÄÊýÖµ(ÀàÐÍΪÊý×Ö)¡£ÆäÖ÷ÒªµÄÓÃ;ÊÇÉú³É±íµÄÖ÷¼üÖµ£¬¿ÉÒÔÔÚ²åÈëÓï¾äÖÐÒýÓã¬Ò²¿ÉÒÔͨ¹ý²éѯ¼ì²éµ±Ç°Öµ£¬»òʹÐòÁÐÔöÖÁÏÂÒ»¸öÖµ¡£
´´½¨ÐòÁÐÐèÒªCREATE SEQUENCEϵͳȨÏÞ¡£ÐòÁеĴ´½¨Óï·¨ÈçÏ£º
CREATE SEQUENCE ÐòÁÐÃû
[INCREMENT BY n]
[ST ......

Oracle ²ÎÊýÎļþ×ܽá

1:pfileºÍspfile
ÔÚ9i֮ǰ£¬²ÎÊýÎļþÖ»ÓÐÒ»ÖÖ£¬ËüÊÇÎı¾¸ñʽµÄ£¬³ÆÎªpfile£¬ÔÚ9i¼°ÒÔºóµÄ°æ±¾ÖУ¬ÐÂÔöÁË·þÎñÆ÷²ÎÊýÎļþ,³ÆÎªspfile,ËüÊǶþ½øÖƸñʽµÄ¡£ÕâÁ½ÖÖ²ÎÊýÎļþ¶¼ÊÇÓÃÀ´´æ´¢²Î ÊýÅäÖÃÒÔ¹©oracle¶ÁÈ¡µÄ£¬µ«Ò²Óв»Í¬µã£¬×¢ÒâÒÔϼ¸µã£º
1)pfileÊÇÎı¾Îļþ£¬spfileÊǶþ½øÖÆÎļþ£»
2)¶ÔÓÚ²ÎÊýµÄÅäÖã¬pfile¿ÉÒÔÖ±½ÓÒÔÎ ......

Oracle ¸ôÀë¼¶±ð

¸ôÀë¼¶±ð£¨isoation level£©
 
¸ôÀë¼¶±ð¶¨ÒåÁËÊÂÎñÓëÊÂÎñÖ®¼äµÄ¸ôÀë³Ì¶È¡£
¸ôÀë¼¶±ðÓë²¢·¢ÐÔÊÇ»¥ÎªÃ¬¶ÜµÄ£º¸ôÀë³Ì¶ÈÔ½¸ß£¬Êý¾Ý¿âµÄ²¢·¢ÐÔÔ½²î£»¸ôÀë³Ì¶ÈÔ½µÍ£¬Êý¾Ý¿âµÄ²¢·¢ÐÔÔ½ºÃ¡£
 
ANSI/ISO SQ92±ê×¼¶¨ÒåÁËһЩÊý¾Ý¿â²Ù×÷µÄ¸ôÀë¼¶±ð£º
δÌá½»¶Á£¨read uncommitted£©
Ìá½»¶Á£¨read committed£© &n ......

oracle Data Mining

 Executive Overview
The Oracle Data Mining Option provides powerful data mining functionality within the Oracle Database. It enables you to discover new insights hidden in your data and to leverage your investment in Oracle Database technology. With Oracle Data Mining, you can build and apply ......

oracle sqlplusÖÐÎÄÏÔʾÂÒÂëµÄÎÊÌâ

ÔÚwindowsÏÂsqlplusÍêÈ«Õý³££¬¿ÉÊǵ½linuxÏ£¬sqlplusÖÐÎÄÏÔʾ¾Í³öÎÊÌâÁË£¬×ÜÊÇÏÔʾ“??”£¬Õâ¸öÎÊÌâÓÖÔõô½â¾öÄØ£¿
¾­¹ýÔÚÍøÂçÉϲé×ÊÁÏ£¬ÒÔ¼°³¢ÊÔ£¬µÃµ½µÄ½â·¨ÈçÏ£º
ÆäʵºÜ¼òµ¥ÎÒÃÇÖ»ÒªÉèÖÃÍ˳ösqlplus,ÉèÖÃÏàÓ¦µÄ»·¾³±äÁ¿NLS_LANG 
      export NLS_LANG="SIMPLI ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ