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                在模型中也可以調用數據庫的聚合方法進行查詢,例如: | 方法 | 說明 | | --- | --- | | count | 統計數量,參數是要統計的字段名(可選) | | max | 獲取最大值,參數是要統計的字段名(必須) | | min | 獲取最小值,參數是要統計的字段名(必須) | | avg | 獲取平均值,參數是要統計的字段名(必須) | | sum | 獲取總分,參數是要統計的字段名(必須) | 靜態調用: ~~~ User::count(); User::where('status','>',0)->count(); User::where('status',1)->avg('score'); User::max('score'); ~~~ 動態調用: ~~~ $user = new User; $user->count(); $user->where('status','>',0)->count(); $user->where('status',1)->avg('score'); $user->max('score'); ~~~
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