在MSSQL中,想象我有以下數據的表...MSSQL - 返回列名和值,如果值不爲空
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
我想有一個SQL語句,將返回ID,名稱和日期列的值不爲空,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
謝謝。
您應該創建表保存一週天,然後做人與人之間的關係 - 天 – Grommy
SELECT * from yourtable where value is null –