You can use custom expressions in place of aggregate functions anywhere in an aggregate query.
您可以使用自订运算式取代汇总查询中任何位置的汇总函式。
In addition to using aggregate functions to aggregate data, you can create custom expressions to produce aggregate values.
除了使用汇总函式汇总资料以外，您也可以建立自订运算式产生汇总值。
In addition to using aggregate functions to aggregate data, you can create custom expressions to produce aggregate values.
除了使用汇总函式汇总资料以外，您也可以建立自订运算式产生汇总值。
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