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CREATE   OR   REPLACE   PROCEDURE   sptstr   (srcstr   varchar2)   as  
      stmp   varchar2(2000);  
  begin  
      select   srcstr   into   stmp   from   dual;  
       
      while   nvl(length(stmp),0)   >   1    
      loop    
          insert   into   tabtest(col)   select   substr(stmp,1,instr(stmp,',')-1   )   from   dual;  
          select   substr(stmp,instr(stmp,',')+1)   into   stmp   from   dual;  
      end   loop   ;  
      commit;  
  end   sptstr;
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OracleµÄͬÒå´Ê£¨synonyms£©×ܽá

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¡¡¡¡1.´´½¨Í¬Òå´ÊÓï¾ä£º
¡¡¡¡create public synonym table_name for user.table_name;
¡¡¡¡ÆäÖеÚÒ»¸öuser_tableºÍµÚ¶þ¸öuser_table¿ÉÒÔ²»Ò»Ñù¡£
¡¡¡¡´ËÍâÈç¹ûÒª´´½¨Ò»¸öÔ¶³ÌµÄÊý¾Ý¿âÉϵÄijÕűí ......

±Ê¼Ç£ºOracle³£Ó÷ÖÎöº¯Êý

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ROW_NUMBER
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row_number() over(partition by ... order by ...)
RANK
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OracleÊý¾Ýµ¼Èëµ¼³öimp/expÃüÁî

OracleÊý¾Ýµ¼Èëµ¼³öimp/exp¾ÍÏ൱ÓÚoracleÊý¾Ý»¹Ô­Ó뱸·Ý¡£expÃüÁî¿ÉÒÔ°ÑÊý¾Ý´ÓÔ¶³ÌÊý¾Ý¿â·þÎñÆ÷µ¼³öµ½±¾µØµÄdmpÎļþ£¬impÃüÁî¿ÉÒÔ°ÑdmpÎļþ´Ó±¾µØµ¼Èëµ½Ô¶´¦µÄÊý¾Ý¿â·þÎñÆ÷ÖС£ ÀûÓÃÕâ¸ö¹¦ÄÜ¿ÉÒÔ¹¹½¨Á½¸öÏàͬµÄÊý¾Ý¿â£¬Ò»¸öÓÃÀ´²âÊÔ£¬Ò»¸öÓÃÀ´ÕýʽʹÓá£
 
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Oracle TNSLSNR Full Client

Most of admins neglect setting password on TNSlsnr Clients for Oracle databases. Oracle ensures that you can either connect to TNSlsnr on a localhost or through mapping to a remote Oracle database using .ora files.
This is not the case anymore Based on Jwa perl client.
This client is a FULL clie ......
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