返回显示超过x次的字段的行计数

Question

在我的SQL表中，我想找到出现超过300次的状态代码，以及包含每个相应状态代码的记录的总行数。我的SQL上有点生锈（再加上星期一早上8点......）这就是我到目前为止所做的：

SELECT StateCode
FROM ZipCodeTerritory
HAVING COUNT(StateCode) > 300

Answer 1

SELECT StateCode, Count(*) As StateCodeCount
FROM ZipCodeTerritory
Group By StateCode
HAVING COUNT(*) > 300

Answer 2

这样的东西？

SELECT StateCode, count(StateCode)
FROM ZipCodeTerritory
GROUP BY StateCode
HAVING COUNT(StateCode) > 300

Answer 3

SELECT StateCode, count(*)
FROM ZipCodeTerritory
GROUP BY StateCode
HAVING count(*) > 300