Question

Lets say i have a table like so…

ITEM#     ItemType     SIZE
1         Car          5.20
2         Watch        2.00
3         Watch        7.50
4         Watch        6.40
5         Car          5.00
6         Car          4.30

I would like to select all rows but whenever the ItemType = ‘Car’ I would like the value for SIZE to be returned as null.

I have tried using

CASE When ItemType = 'Car'
Then SIZE = null
END

but this does not work.

Many thanks!

Answer 1

maybe because value where missing for other rows, try with this:

SELECT
    ITEM,
    ItemType,
    CASE
        WHEN ItemType = 'Car' THEN null
        ELSE Size
    END
FROM table