| * | * |
|---|---|
| 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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