查询数据计数列数据SQL

Question

我有桌子人，我只想要结果Departement。

我拥有2个以上的工程师级。

我正在尝试这样的查询

SELECT
    Department, Level
FROM
    people 
WHERE 
    Level = 'Engineer' 
HAVING 
    (Level = 'Engineer' > 2)

但没有结果，请帮助我

Answer 1

您缺少GROUP BY和COUNT(Level) > 2。查询将是：

SELECT Department
FROM people 
WHERE Level = 'Engineer' 
GROUP BY Department
HAVING COUNT(Level) > 2