2010年4月2日
SQL语句快速入门
摘要： Select * from tablenameSQL> select * from employees;Select select list from tablenameSQL> select employee_id,first_name from employees;Select distinct … from tablenameSQL> select disti... 阅读全文
posted @ 2010-04-02 10:32 酷越 阅读(287) 评论(0) 推荐(0)