Question

我试图只显示多个人在我的表格中的zipcodes并按升序排序。

我尝试了以下但是它不起作用。

SELECT zipcode AS "zipcodes" FROM people GROUP BY zipcode ORDER BY ASC;

Answer 1

<authentication mode="Forms">
      <forms loginUrl="Login.aspx" defaultUrl="index.aspx" />
    </authentication>
    <authorization>
      <allow users="*"/>
    </authorization>

如果您只需要在订单之前附加2次以上的邮政编码：

HttpContext.Current.User.Identity.IsAuthenticated

或者（如果Mysql支持HAVING子句中的别名）：

SELECT zipcode AS "zipcodes", count(1) as ZIP_COUNT
FROM people 
GROUP BY zipcode 
ORDER BY ZIP_COUNT ASC;

Answer 2

您的查询的主要问题是您没有按部分指定订单中的任何列。

SELECT zipcode AS "zipcodes" FROM people GROUP BY zipcode ORDER BY ASC;

所以只需将zipcode添加到它就可以了。

SELECT zipcode AS "zipcodes" FROM people GROUP BY zipcode ORDER BY zipcode ASC;

Answer 3

以下查询选择表“people”中包含多个条目的邮政编码：

SELECT zipcode AS "zipcodes" 
FROM people 
GROUP BY zipcode
HAVING COUNT(*) > 1
ORDER BY zipcode ASC;

Answer 4

尝试这个

SELECT zipcode AS "zipcodes", count(zipcode) as noofzip
FROM people 
GROUP BY zipcode 
having count(zipcode)>1
order by zipcode

仅选择与MYSQL匹配的邮政编码

4 个答案: