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select * from v$reserved_words;
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2.ÔÚÖÕ¶Ë´°¿ÚÊäÈë sqlplus /nolog
   [oracle@hylinux ~]$ sqlplus /nolog
    SQL*Plus: Release 10.2.0.1.0 - Production on ÐÇÆÚ¶þ 7ÔÂ 29  14:26:16 2008
    Copyright (c) 1982, 2005, Oracle.  All rights reserved.
& ......

oracle instr


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SQL> select
instr('yuechaotianyuechao','ao') position from dual;
 
  POSITION
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oracle ·ÖÇø±íµÄ½¨Á¢·½·¨ 

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qlplus /nolog
connect sys/lee as sysdba
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show parameter job_queue_processes;
alter system set job_queue_processes=10;
exit
sqlplus /nolog
connect jcy/jcy
ALTER TABLE T_OA_AFFICHE MODIFY (INPUT_TIME DATE);
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