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oracleÖÐtypeµÄʹÓÃ

create or replace type mytype IS TABLE OF varchar2(20);
declare type1 mytype :=mytype('1','2','3','4');
i number:=1;
var_str varchar(20):='liaomin';
begin
type1.EXTEND;
type1(type1.COUNT):=var_str;
loop
  dbms_output.put_line(type1(i));
  i:=i+1;
  exit when i=type1.count+1;
 end loop;
end;
×¢ÒâµØ·½  IS TABLE OF varchar2(20); ±íʾ±í¸ñÖеÄvarchar2(20) Ï൱ÓÚÒ»ÁÐÊý¾Ý ÕâÀï¾Í±íʾÊý×é
type1ÐèÒªÌí¼ÓÊý¾Ý ±ØÐëµ÷Óà EXTENDÌí¼ÓÒ»·ÝµØÖ·  Æäʵ×îºóÒ»¸öλÖà Ҳ¾ÍÊǸÃÌí¼ÓÖµµÄµØ·½
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create database link user_auth
¡¡¡¡ connect to user_auth identified by user_auth
¡¡¡¡ using  '(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.0.236)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=develop1)))'; ......
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