PLSQL中 INDEX BY TABLE 的小例子

开始

--INDEX BY Table

SET SERVEROUTPUT ON;



DECLARE

  TYPE enm_tab_type IS TABLE OF

       emp.ename%TYPE

       INDEX BY BINARY_INTEGER;

  

  enm_table enm_tab_type;

BEGIN

  enm_table(1):='ABCD';

  IF enm_table.EXISTS(1) THEN

     dbms_output.put_line( enm_table(1));

  ELSE

     dbms_output.put_line( 'not exists(1)');

  END IF;

END;

/

结束