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    1. cd [ORACLE_HOME]/rdbms/admin
    2. log into SQL*Plus as SYSTEM
    3. Run @utlxplan
    4. Run CREATE PUBLIC SYNONYM PLAN_TABLE FOR PLAN_TABLE;
    5. Run GRANT ALL ON PLAN_TABLE TO PUBLIC;   £¨±¾¾ä¿ÉÒÔ¸³¸øÌض¨µÄÓû§¡££©
  
  ÏÂÃæ²½ÖèÊÇ´´½¨ºÍ¸³plustrace ½ÇÉ«
   1. cd [ORACLE_HOME]/sqlplus/admin
   2. Log in to SQL*Plus as SYS or as SYSDBA
   3. Run @plustrce
   4. Run GRANT PLUSTRACE TO PUBLIC;  £¨±¾»ú¿ÉÒÔ¸³¸øÌض¨Óû§£©
¹þ¹þ  ¼òµ¥°É£¬Ö±½Ó¿ªÆôset autotrace onºó¾ÍÄܼàÊÓÓï¾äµÄÔËÐÐÇé¿öÁË¡£¸Ï½ôÈ¥ÊÔÊÔ°É£¡


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(usrRegTime >=CONVERT(varchar(10),getDate(),120)+' 00:00:00' and usrRegTime <=CONVERT(varchar (10),getDate(),120)+' 23:59:59')
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