Reputation: 449
I want to creat a virtual Column to do some special operation in MySQL... So i need to creat a "virtual Column" with some static values. But i dont't know how...
eg. SELECT 3 as number
shows Column "number" with the value 3.
SELECT 3, 4, 67, 9
shows four different Columns with only one value.
i tried it with some combination of both, like:
SELECT 3, (SELECT 5), (SELECT 4)
or
SELECT 3 as a, 4 as a, 67 as a
or SELECT 3 && 6 && 9 && 3
or
SELECT 3 || 6 || 9 || 3
How my query have to looks like to get only one Column with more values like on a simple statement???
Thanks guys
Upvotes: 1
Views: 475
Reputation: 64476
You need union
query to show multiple values within a single alias
SELECT 3 as col
UNION ALL
SELECT 4 as col
UNION ALL
SELECT 67 as col
Upvotes: 1