解决！mysql报错 FUNCTION test.sum does not exist. Check the ‘Function Name Parsing and Resolutio

一、错误代码

select  sum (age) from emp where workaddress ='上海';

二、错误原因

sum聚合函数和（）之间误添了一个空格，哎，都怪我这习惯打空格的毛病，把空格去了就不报错了。

三、正确代码

select  sum(age) from emp where workaddress ='上海';

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结束~