在MSSQL中,想象我有以下数据的表...MSSQL - 返回列名和值,如果值不为空
id name monday tuesday wednesday thursday friday
1 mark null chores null gym swim
2 steve gym null class hockey null
3 mike chores gym null null null
我想有一个SQL语句,将返回ID,名称和日期列的值不为空,例如...
id name day value
1 mark tuesday chores
1 mark thursday gym
1 mark friday swim
2 steve monday gym
2 steve wednesday class
2 steve thursday hockey
2 mike monday chores
2 mike tuesday gym
谢谢。
您应该创建表保存一周天,然后做人与人之间的关系 - 天 – Grommy
SELECT * from yourtable where value is null –