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datastore/docs/zh/sql-reference/statements/select/having.md
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mikepop7GitHubmikepop7 <>Ivan Blinkov
 ad62e42229 Documentation improve: Translate [select] section into Chinese to improve readability (#13814) 
* translate [select] section into Chinese to improve readability

* trigger ci

Co-authored-by: mikepop7 <>
Co-authored-by: Ivan Blinkov <[email protected]>
2020-08-17 23:28:11 +03:00

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HAVING

HAVING 子句

允许过滤由 GROUP BY 生成的聚合结果. 它类似于 WHERE ，但不同的是 WHERE 在聚合之前执行，而 HAVING 之后进行。

可以从 SELECT 生成的聚合结果中通过他们的别名来执行 HAVING 子句。 或者 HAVING 子句可以筛选查询结果中未返回的其他聚合的结果。

限制

HAVING 如果不执行聚合则无法使用。 使用 WHERE 则相反。

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