摘要: 数字条件: SQL> select salary from employees where employee_id=100; 字符串大小写敏感: SQL> select last_name, salary from employees where last_name='King'; SQL> sel 阅读全文
posted @ 2017-08-02 08:40 夜月色下 阅读(2204) 评论(0) 推荐(0) 编辑