mysql查看某資源下的評論數量和收藏數量

原創 aoxiang94 2020-02-21 10:56

sql語句：

SELECT v.*,(SELECT COUNT(*) FROM COMMENT com WHERE com.v_id=v.v_id) AS com,(SELECT COUNT(*) FROM collect col WHERE col.v_id=v.v_id) AS coll FROM video v ;

效果：


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