Hi Stack Overflow Community,
I am researching how to create a query that conditionally assigns values in a user-defined column based upon values in another column. I didn't know if this was entirely possible, as I couldn't find any references on this. I know that it's possible to create a user-defined column by just entering in something like 'Yellow' As Color, but these are limited to static values.
I have provided an example of the output below, and the end result would be the user-defined column values would be a string.
X(Column from Table) Color(User-Defined Column)
1 if X = 1, Color = 'Brown'
2 if X = 2, Color = 'Blue'
3 if X = 3, Color = 'Red'
4 if X = 4, Color = 'Orange'
5 if X = 5, Color = 'Purple'
X Color
1 Brown
2 Blue
3 Red
4 Orange
5 Purple
Any input would be greatly appreciated, and thank you in advance!
Daniel
For small amount of available values i think case will be most appropriate.
SELECT X,
CASE
WHEN X = 1 THEN "Brown"
WHEN X = 2 THEN "Blue"
WHEN X = 3 THEN "Red"
WHEN X = 4 THEN "Orange"
WHEN X = 5 THEN "Purple"
ELSE "No color"
END AS Color
FROM Table;