我有这样的数据:
Table
Group: "A" , Color: "Blue", Count: "400"
Group: "A" , Color: "Green", Count: "3"
Group: "A" , Color: "Yellow", Count: "6"
Group: "A" , Color: "Red", Count: "1"
Group: "B" , Color: "Purple", Count: "243"
Group: "B" , Color: "Green", Count: "2"
Group: "B" , Color: "Yellow", Count: "7"
如何查询数据以获取每个组中最受欢迎(按计数)的颜色。因此,结果将如下所示:
Result
Group: "A", Color: "Blue"
Group: "B", Color: "Purple"
t.count
是 varchar 类型。在与sub.ct
进行比较时需要进行转换。 - aF.40 > 300
。 - JNK