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ʵÀý¶þ£ºtruncate table emp;
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½ñÌìɾ³ýµÄ±í¿Õ¼ä°üº¬ÎﻯÊÓͼ±¨´í£¬ORA-23515: ʵÌ廯ÊÓͼºÍ/»òËüÃǵÄË÷Òý´æÔÚÓÚ±í¿Õ¼äÖÐ
¿´À´ÊÇÐèҪɾ³ýÎﻯÊÓͼ£¬Ö´ÐÐɾ³ý²Ù×÷£¬ÒòΪÊý¾ÝÌ«´óÁË£¬°ëÌìҲûŪÍ꣬ȡÏûÁË£¬ÉÏÍø²éÁíÍâÒ»ÖÖ·½·¨£¬É¾³ýÓû§£¬Ö¸¶¨cascade ²ÎÊý£¬ÕâÑù¾Í¿ÉÒÔÁË
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drop user user_name cascade;
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Oracle Óαê Cursor ʹÓÃ

create or replace procedure getok
as
cursor mycur is select ids,name from aaa where name not in (select names from ok);
vempno aaa.ids%type;
vename aaa.name%type;
begin
open mycur;
loop
fetch mycur into vempno,vename;
exit when mycur%notfound;
if mycur%found then
    insert ......

Oracle union intersect minus ¸´Ï°

Á½¸ö×Ó²éѯ½øÐм¯ºÏÔËÐУ¬ Ìõ¼þ¾ÍÊÇÁ½¸ö²éѯµÄ×ֶθöÊýÒ»Ö£¬ÀàÐÍÒ»Ö£¬×Ö¶ÎÃû¿ÉÒÔ²»Í¬¡£
SQL> select * from ta;
        ID NAME
---------- --------------------
         1 gorey
       &nb ......

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Sample
±í¿Õ¼ä£ºIMPTEMP
±í£ºRoles ¡¢Users
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-- Export file for user IMPTEMP                    --
-- Created by Administ ......
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