ORACLE 10.204ÃÜÂëÖØÊÔ´ÎÊýÎÊÌâ
ORACLE 10.204ÃÜÂëÖØÊÔ´ÎÊýÎÊÌâ
ORACLE 10.204ÃÜÂëÖØÊÔ´ÎÊýÎÊÌâ
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ALTER PROFILE "DEFAULT" LIMIT FAILED_LOGIN_ATTEMPTS UNLIMITED;
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ORACLE SQLÐÔÄÜÓÅ»¯
ORACLE SQLÐÔÄÜÓÅ»¯ÏµÁÐ (Ò»)
1. Ñ¡ÓÃÊʺϵÄORACLEÓÅ»¯Æ÷
ORACLEµÄÓÅ»¯Æ÷¹²ÓÐ3ÖÖ:
a. RULE (»ùÓÚ¹æÔò) b. COST (»ùÓڳɱ¾) c. CHOOSE (Ñ¡ÔñÐÔ)
ÉèÖÃȱʡµÄÓÅ»¯Æ÷,¿ÉÒÔͨ¹ý¶Ôinit.oraÎļþÖÐOPTIMIZER_MODE²ÎÊýµÄ¸÷ÖÖÉùÃ÷,ÈçRULE,COST,CHOOSE,ALL_ROWS,FIRST_ROWS . Ä㵱ȻҲÔÚSQ ......
1.°²×°jdk(°æ±¾6u7);
¡¡¡¡2.ÅäÖÃjdk»·¾³±äÁ¿(°²×°Ä¿Â¼:D:\tools\java\jdk1.6.0_07):
¡¡¡¡1). JAVA_HOME = D:\tools\java\jdk1.6.0_07;
¡¡¡¡2). PathµÄ×îÇ°Ãæ×·¼Ó"D:\tools\java\jdk1.6.0_07\bin;D:\tools\java\jre1.6.0_07\bin";
¡¡¡¡3). CLASSPATH = D:\tools\java\jdk1.6.0_07\lib;D:\tools\java\jdk1.6.0_07\lib\too ......
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--´´½¨»á»°¼¶ÁÙʱ±í
create global temporary table TMPA
(
ID INTEGER,
NAME VARCHAR2(10)
)
on commit preserve rows;
--²åÈë¼Ç¼
insert into tmpa select 1,'aa' from dual;
insert into tmpa select 1,'bb ......