mysql查询数量语句_mysql语句统计总数_一条sql语句实现统计查询_MySQL

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一条sql语句实现统计查询

如图：程序员在进行如下的统计时，现在提供两种实现方案：

方案一：运用 SEKECT CASE WHEN

EXPLAIN SELECT count(*) AS '总数', count( CASE oup.status WHEN '1' THEN oup.id END ) AS '未绑定', count( CASE oup.status WHEN '2' THEN oup.id END ) AS '已绑定', count( CASE oup.status WHEN '3' THEN oup.id END )AS '冻结中' FROM lab_org_uc_passport oup

显示结果：(按行显示)

方案二：

SELECT count(*) AS '总数' FROM lab_org_uc_passport oup UNION ALL SELECT count(*) AS '未绑定' FROM lab_org_uc_passport oup WHERE oup.status = '1' UNION ALL SELECT count(*) AS '未绑定' FROM lab_org_uc_passport oup WHERE oup.status = '2' UNION ALL SELECT count(*) AS '未绑定' FROM lab_org_uc_passport oup WHERE oup.status = '3'

显示结果(按列显示)

34

3

10

21

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