* | * |
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链接 | SQL Basics: Simple GROUP BY |
难度 | 7kyu |
状态 | √ |
日期 | 2019-03-28 |
题意
题解1
select age, count(name) as people_count from people group by age
* | * |
---|---|
链接 | SQL Basics: Simple GROUP BY |
难度 | 7kyu |
状态 | √ |
日期 | 2019-03-28 |
select age, count(name) as people_count from people group by age
本文标题:SQL Basics: Simple GROUP BY
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