CASE Statement - I'm in a bit of a quandry

[dhutton]

Hello everyone,

I'm having a problem with trying to check a value from one column and add a value to the next column based on what the first column is. Below are my to CASE statements. What I need is to make field IN_OUT either "IN" for when field UpDnGrd is "Upgrade" and "Out" for when UpDnGrd is "Downgrade"

Kinda like this:

IF UpDnGrd = "U" THEN make IN_OUT = IN

OR

IF UpDnGrd = "D" THEN make IN_OUT = OUT

ELSE keep the original value of IN_OUT which will always be either IN or OUT

see below example of my current CASE statement. Just want to know how to change the value of IN_OUT based on what the value of UpDnGrd is.


================================================== =
CASE sv7.InOut
WHEN 'I' THEN 'IN'
WHEN 'O' THEN 'OUT'

END AS IN_OUT,

CASE sv11.S11M14

WHEN 'D' THEN 'Downgrade'
WHEN 'U' THEN 'Upgrade'
ELSE ' '

END AS UpDnGrd
================================================== =

Thank YOU!

[dhutton]

How could I merge the 2 case statements?

[rob313]

You question and code sample are a little confusing, but I think this is what you want:

SELECT
CASE

WHEN sv11.S11M14 = 'D' THEN 'OUT'
WHEN sv11.S11M14 = 'U' THEN 'IN'
WHEN sv7.InOut = 'I' THEN 'IN'
WHEN sv7.InOut = 'O' THEN 'OUT'
ELSE ' '

END AS IN_OUT

FROM ...

Only the first WHEN condition will be processed.