尝试这个
SELECt group_name, employees, surveys, COUNT( surveys ) AS test1, concat(round(( surveys/employees * 100 ),2),'%') AS percentage FROM a_test GROUP BY employees
在这里演示
尝试这个
SELECt group_name, employees, surveys, COUNT( surveys ) AS test1, concat(round(( surveys/employees * 100 ),2),'%') AS percentage FROM a_test GROUP BY employees
在这里演示
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