If one column is null, replace another column with null as well

Question

I am joining two tables, case and user. My problem is that I want to sensor the user's name and location if he/she is working at location B-D.

I want this

Default

To look like this

Censored

This is my code so far, but the name is not censored:

SELECT 
c.CaseID, 
c.Category, 
u.User, 
CASE 
    WHEN u.Location != "A" THEN null
    ELSE u.Location
END as Location

FROM cases c

JOIN c.userID on u.userID

amazing how the edit made that post so much easier to answer @GMB — Benoit F
– Benoit F, Commented Dec 13, 2019 at 14:39

M.Ali · Accepted Answer · 2019-12-13 14:47:17Z

5

Use the same case statement for user column too.

SELECT 
c.CaseID, 
c.Category, 
CASE 
    WHEN u.Location != "A" THEN null
    ELSE u.User
END as User,
CASE 
    WHEN u.Location != "A" THEN null
    ELSE u.Location
END as Location
FROM cases c...... <Your remaining query>

edited Dec 13, 2019 at 14:47

answered Dec 13, 2019 at 14:38

M.Ali

69.9k17 gold badges110 silver badges133 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

jarlh Over a year ago

case expression.

Collectives™ on Stack Overflow

If one column is null, replace another column with null as well

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related