题目链接:点击打开链接
题目大意:略。
解题思路:略。
AC 代码
SELECT project_id, ROUND(AVG(experience_years), 2) average_years FROM Project p, Employee e WHERE p.employee_id = e.employee_id GROUP BY 1
题目链接:点击打开链接
题目大意:略。
解题思路:略。
AC 代码
SELECT project_id, ROUND(AVG(experience_years), 2) average_years FROM Project p, Employee e WHERE p.employee_id = e.employee_id GROUP BY 1