Derive Day of Week from Date

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I used the Day function on a date field and it returns an integer. How do we convert this to the day of the week - Mon, Tue etc.?

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Jonathon_wodnickiAccepted solution

Community Advisor

Hi,

In an xtk expression? You'd have to use a long chain of decode's or iif's. Assuming Day() counts from 1:

decode(Day(@date), 1, 'Sun', decode(Day(@date), 2, 'Mon', decode(Day(@date), 3, 'Tue', ...))))

Thanks,

-Jon

Jonathon_wodnicki

Accepted solution

Community Advisor

Hi,

In an xtk expression? You'd have to use a long chain of decode's or iif's. Assuming Day() counts from 1:

decode(Day(@date), 1, 'Sun', decode(Day(@date), 2, 'Mon', decode(Day(@date), 3, 'Tue', ...))))

Thanks,

-Jon

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R

rntrpAuthor

Level 3

Thanks. I was going down the same path - I was going to use Case statements. Was wondering if there was any pre-built function. Will try both, thanks!

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