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SQL> shutdown immediate
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SQL> alter system archive log stop;
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SQL> alter database noarchivelog ;
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SQL> alter database open ;
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SQL> archive log list ;
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SQL> alter database archivelog ;
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SQL> alter database open ;
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SQL> alter system archive log start ;
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Oracle ²éѯÓû§ÃûÓëÃÜÂëÏàͬµÄËã·¨

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SQL> create or replace procedure sys.find_the_same as
hex_password varchar2(30);
trans_password varchar2(30);
v_username varchar2(30); ......

jdbcÁ¬½ÓOracle

      ËäȻѧϰJavaºÜ¾ÃÁË£¬×Ô¼ºÒ²Á¬½Ó¹ýһЩÊý¾Ý¿â£¬±ÈÈçmysqlÖ®ÀàµÄ£¬Èç½ñÄØ£¬Ò²Ñ§Ï°ÁËÒ»¶Îʱ¼äµÄOracle£¬È»¶øÄØ£¬½ñÌìÊÇÎÒµÚÒ»´ÎÁ¬½ÓOracle£¬ºÙºÙ£¬Ó¦¸Ã»¹²»ËãÌ«³Ù°É¡£
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    ÎÒÕâÊÇÒ»¸ö²éѯÀý×Ó
    Ê×ÏÈ£¬Ô ......

oracle »ù´¡ ¿ØÖÆ»ú¹¹+¸³Öµ

   --±äÁ¿¸³Öµ
   declare
   identity :=0;
   a varchar2(59,0);
   b varchar2(50):='abc';
   a :='cba';
  
   -- ¿ØÖÆÓï¾ä
   ----------------------------------
   if a>b then
   ......
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