--取简单的游标
declare cursor sp is select * from user_tables; myrecord user_tables%ROWTYPE; begin open sp ; fetch sp into myrecord; while sp%found loop dbms_output.put_line(myrecord.table_name); fetch sp into myrecord; end loop; close sp ; end;
--带参数的游标
declare cursor sp(rownum number) is select * from user_tables a where a.NUM_ROWS>=rownum; myrecord user_tables%ROWTYPE; begin open sp(10000) ; fetch sp into myrecord; while sp%found loop dbms_output.put_line(myrecord.table_name); fetch sp into myrecord; end loop; close sp ; end;
--隐性游标
begin for sp in (select * from user_tables) loop dbms_output.put_line(sp.table_name); end loop; end;
时间: 2024-10-19 22:18:05