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(1)SEQNAME.NEXTVALÀïÃæµÄÖµÈçºÎ¶Á³öÀ´£¿¿ÉÒÔÖ±½ÓÔÚinsert into test values(SEQNAME.NEXTVAL) ÊÇ¿ÉÒÔÓà  ÕâÑù£º     
SELECT tmp#_seq.NEXTVAL
        INTO id_temp
        from DUAL;  È»ºó¿ÉÒÔÓÃid_temp
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 IF (sum>0)
      THEN
   begin
         INSERT INTO emesp.tp_sn_production_log
              VALUES (r_serial_number, , id_temp);
         EXIT;
    end; 
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1. OracleÓ¦Óñ༭·½·¨¸ÅÀÀ
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    2) ODBC
    3) OCI: CÓïÑÔºÍÊý¾Ý¿â´ò½»µÀµÄ·½·¨£¬ºÍProCºÜÏàËÆ£¬¸üµ×²ã£¬ºÜÉÙÓÃ;
    4) SQLJ: ºÜеÄÒ»ÖÖÓÃJava·ÃÎÊOracleÊý¾Ý¿âµÄ·½·¨£¬»áµÄÈ˲»¶à;
    5) JDBC
    6) PL/SQL: ´æ´¢ÔÚÊý¾ÝÄÚÔËÐÐ, ÆäËû·½·¨ÎªÔÚÊý¾Ý¿âÍâ¶ÔÊý¾Ý¿â·ÃÎÊ;
2. PL/SQL
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    2) Oracle¿Í»§¶Ë¹¤¾ß·ÃÎÊOracle·þÎñÆ÷µÄ²Ù×÷ÓïÑÔ;
    3) Oracle¶ÔSQLµÄÀ©³ä;
4. PL/SQLµÄÓÅȱµã
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    1) ½á¹¹»¯Ä£¿é»¯±à³Ì£¬²»ÊÇÃæÏò¶ÔÏó;
    2) Á¼ºÃµÄ¿ÉÒÆÖ²ÐÔ(²»¹ÜOracleÔËÐÐÔÚºÎÖÖ²Ù×÷ϵͳ);
    3) Á¼ºÃµÄ¿Éά»¤ÐÔ(±àÒëͨ¹ýºó´æ´¢ÔÚÊý¾Ý¿âÀï);
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