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                語法形式: ``` having 篩選條件 ``` 含義: having的含義跟where的含義一樣,但having是只用于對group by分組的結果進行的條件篩選。 即:having其實是相當于分組之后“有若干行數據”,然后對這些行再篩選。 示例: 查詢出品牌平均價超過5000的所有品牌的平均價,最高價,以及產品的數量。 ![](https://img.kancloud.cn/5a/77/5a77b04e08c95bad88482661c6ce17d9_640x141.jpg) 再來一個: ![](https://img.kancloud.cn/ad/df/addfc0cc04af6832d20649356e87a571_869x45.jpg)
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