SQL人读与机读的顺序

对于普通的sql语句，人写的与机读顺序是不同的，且看说明。

人写的sql：

select 
  distinct  <select_list>
  from   <left_table> 
  <join_type> join <right_table> 
  on <join_condition>
  where <where_condition>
  group by <groupby_list>
  having  <having_condition>
  order by <orderby_conditoin>
  limit <limit number>；

机读顺序：

FROM  <left_table>
ON <join_codition>
<join_type> JOIN <right_table>
WHERE <where_condition>
GROUP BY <group_by_list>
HAVING <HAVING_condition>
SELECT 
DISTINCT <select_list>
ORDER BY <order_by_condition>
LIMIT <limit_number>