摘要: --游标操作declare cursor c_sal is select empno,ename,sal from emp; begin for v_sal in c_sal loop dbms_output.put_line(v_sal.empno||' '||v_sal.ename||' '|| 阅读全文
posted @ 2020-03-24 11:22 墨白95 阅读(149) 评论(0) 推荐(0) 编辑