mysql sql limit where having order

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mysql sql limit where having order

来源: 作者: 时间:2016-02-05 10:57 【

mysql sql limit where having ordermysql sql limit[plain]SQL语句执行顺序及MySQL中limit的用法 . 写的顺序:select ... from... where.... group by... having... order by.. 执行顺...
sql limit where having order
 
mysql sql limit
[plain] 
SQL语句执行顺序及MySQL中limit的用法   
.  
 写的顺序:select ... from... where.... group by... having... order by..  
 执行顺序:from... where...group by... having.... select ... order by...  

 

   
MYSQL中:
  
写的顺序:select ... from... where.... group by... having... order by.. limit [offset,] (rows)  
 执行顺序:from... where...group by... having.... select ... order by... limit

 

 
limit限制查询的结果序号
 
 limit off, n: 从off偏移取n个数据  
 
 limit n: 取前n个数据,相当于limit 0, n
 
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