mysql having count语法

MySQL中的HAVING COUNT语法用于在GROUP BY子句中筛选聚合函数结果。具体语法如下：
SELECT column1, column2, ...
FROM table
GROUP BY column1, column2, ...
HAVING condition;
在HAVING子句中，可以使用COUNT函数来统计特定列的非重复记录数量，并通过条件筛选结果。例如，HAVING COUNT(status)<>COUNT(DISTINCT(status))表示筛选出status列中非重复记录数量与所有记录数量不相等的结果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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