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MySQL查询某个列中相同值的数量统计_MySQL

WBOY
WBOYOriginal
2016-06-01 12:59:311047browse

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数据现在是这样的，我想确定出type列中的news和image。。。。甚至以后有其他值，他们分别有多少个。

 

SELECT
	type,
	count(1) AS counts
FROM
	material
GROUP BY
	type

count(1),代表统计第一列，写上1 比写 *的效率高！

 

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