[英]MySQL: Return fields where COUNT(*) is greater than
我有以下SQL,但我只想返回'hits'大於10的行。
SELECT clicks.affiliate, COUNT(*) AS hits, affiliates.title, affiliates.url
FROM clicks
INNER JOIN affiliates ON affiliates.id = clicks.affiliate
GROUP BY clicks.affiliate
謝謝。
要按聚合過濾,您需要使用having
子句。 與許多RDBMS不同,MySQL允許您在此上下文中使用列別名(大多數其他RDBMS也會堅持將affiliates.title, affiliates.url
添加到group by
子句中)
SELECT clicks.affiliate, COUNT(*) AS hits, affiliates.title, affiliates.url
FROM clicks
INNER JOIN affiliates ON affiliates.id = clicks.affiliate
GROUP BY clicks.affiliate
HAVING hits > 10
SELECT clicks.affiliate, COUNT(*) AS hits, affiliates.title, affiliates.url
FROM clicks
INNER JOIN affiliates ON affiliates.id = clicks.affiliate
GROUP BY clicks.affiliate
HAVING COUNT(*) > 10
...
HAVING hits > 10
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