12_MySQL如何对查询结果进行排序

 

本节所涉及的sql语句：

-- 排序关键字

SELECT empno,ename,hiredate FROM t_emp ORDER BY hiredate DESC;

-- 排序字段相同的情况

SELECT empno,ename,sal,hiredate FROM t_emp ORDER BY sal ASC,hiredate DESC;

SELECT empno,ename,sal,hiredate FROM t_emp ORDER BY sal ASC LIMIT 5;

 

 

 

 

 此时字段sal是无序的

 

 

 

 此时sal就变得有序了

 

 

 

 

 

 

 

 

标签：ename,12,sal,empno,MySQL,hiredate,排序,ORDER,SELECT
来源： https://www.cnblogs.com/waterr/p/13955279.html