我有一张包含以下布局的表格:
+----+-----------+-------------+ | id | name | department | +----+-----------+-------------+ | 1| John | Finance | +----+-----------+-------------+ | 2| Bob | Optics | +----+-----------+-------------+ | 3| Jill | Finance | +----+-----------+-------------+ | 4| Jake | Finance | +----+-----------+-------------+ | 5| Mike | Support | +----+-----------+-------------+
我想得到每个部门所有人的总和:
+-----------+-------------+ | people | department | +-----------+-------------+ | 3| Finance | +-----------+-------------+ | 1| Optics | +-----------+-------------+ | 1| Support | +-----------+-------------+
我在构建正确的查询时遇到了问题
答案 0 :(得分:2)
使用SELECT COUNT(name),department FROM table GROUP BY department
RewriteEngine on
RewriteCond %{QUERY_STRING} ^id=([^&]+) [NC]
RewriteRule ^example.html$ https://www.url.com/example/new-page.html? [NC,L,R]
答案 1 :(得分:1)
SELECT departmetn, Count(*) as people FROM table Group by departmetn
答案 2 :(得分:1)
试试这个: -
SELECT COUNT(name) AS people,department FROM table GROUP BY department