现有一张用户信息表,结构和示例如下:
请问下列语句中哪个可以筛选出职业方向为算法的人数大于3的用户等级?
SELECT `level`, COUNT(1) FROM user_info WHERE job='算法' AND COUNT(uid)>3
SELECT `level`, COUNT(uid) as cnt FROM user_info WHERE job='算法' ORDER BY `level` HAVING COUNT(uid)>3
SELECT `level`, COUNT(uid) as cnt FROM user_info GROUP BY `level` HAVING COUNT(uid)>3 AND job='算法'
SELECT `level`, COUNT(uid) FROM user_info WHERE job='算法' GROUP BY `level` HAVING COUNT(uid)>3
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