- 以下表为例 
- 按工资从少到多排序,输入:select * from teacher order by salary asc; 
- 按工资从多到少排序,输入:select * from teacher order by salary desc; 
- 按年龄从大到小排序,输入:select * from teacher order by age desc;
  
 总结:asc 是升序,desc 是降序。
49.order by 排序查询
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2022-03-11

select * from teacher order by salary asc;
select * from teacher order by salary desc;
select * from teacher order by age desc;
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