Return a value of Yes or No, depending on if a cell has data in it in SQL

[Laurie Huth]

I have a column called 'Build Date'. I created another column called 'Committed (Y/N)'. I want the Committed column to return a value of Yes or No, depending on if there is a build date listed. 

What I've tried so far: I thought I could do it by creating a WHEN/THEN/ELSE SQL, but both columns either list the dates in both (like above) or both columns go to YES and NOs. See below

SELECT 'Key',

FORMATWIKI(SUM('Build Date')) AS 'Build Date',

FORMATWIKI(SUM('Enforcement Date')) AS 'Enforcement Date',

FORMATWIKI(SUM('Region Impact')) AS 'Region Impact',

FORMATWIKI(SUM('Build Date')) AS 'Committed? (Y/N)'

FROM (

SELECT *,

CASE

WHEN 'Build Date' IS NULL

THEN "No" IN 'Committed? (Y/N)'

ELSE "Yes"

END

AS 'Committed? (Y/N)'

FROM T*)

[Alexey Mikhaylov _Stiltsoft_]

Hi Laurie,

Please modify your CASE WHEN statement as following:

SELECT *,
CASE
WHEN 'Build Date' IS NULL
THEN "No"
ELSE "Yes"
END
AS 'Committed? (Y/N)'
FROM T*

As you can see, everything works as expected.

What concerns the first part of your query:
FORMATWIKI(SUM('Build Date')) AS 'Build Date',
FORMATWIKI(SUM('Enforcement Date')) AS 'Enforcement Date',
FORMATWIKI(SUM('Region Impact')) AS 'Region Impact',
FORMATWIKI(SUM('Build Date')) AS 'Committed? (Y/N)'

What are you trying to do with this part of the code, especially with the last entry in bold? It seems that you take your ‘Build Date’ column and show it as 'Committed? (Y/N)'. Thus your “Yes” and “No” from the internal SELECT are overwritten by the dates from the ‘Build Date’ column – the result column has the same name 'Committed? (Y/N)'.
Please check this moment once more.

Best regards,

Alexey