完美MySQL报错:Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column的解
在使用MySQL进行数据查询时,可能会遇到一个常见的错误:Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column。这个错误通常发生在执行包含 GROUP BY 的SQL查询时,意