Mysql基础第八天,排序检索数据

Posted 2021-07-02 2019ab

单列排序

	select * from products order by prod_price;
	select * from vendors order by vend_name;

按多个列排序

select * from verdors order by vend_country,vend_city;

指定排序方向

select * from verdors order by vend_country desc,vend_city asc;  // desc 降序  asc 升序

小结

排序用到order by这个关键词,默认是升序(asc)降序是desc;多列排序时先按前面的字段排,然后按照后面的字段排序.

感谢大家观看.