数组集合类型 index table
-- Created on 2010/05/18 by NANdeclare -- Local variables here i integer; TYPE t_table IS TABLE OF VARCHAR2(20 ) INDEX BY VARCHAR2 (20); v_table t_table; v_str VARCHAR2( 20);BEGIN v_table('a') := 'aa'; v_table('b') := 'bb'; v_str := v_table.first; WHILE v_str IS NOT NULL LOOP dbms_output.put_line(v_table(v_str)); v_str := v_table.next(v_str); END LOOP; EXCEPTION WHEN OTHERS THEN dbms_output.put_line( sqlerrm);end;