关于mysql的多表连接问题
- WBOYOriginal
- 2016-06-06 09:39:06902browse
mysql
Select a.a_id,b.b_id from a,b where a.a_id = b.b_id
Select a.a_id,b.b_id from a inner join b on a.a_id = b.b_id
这两个sq语句有区别吗
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