Change Date Format from YYYYMMDDHHMMSS to YYYYMMDD in a DTL

Question

Question

Patty Aguirre-Romero · Sep 11

#InterSystems IRIS for Health #Ensemble

Greetings,

Is it possible to change the date format from YYYYMMDDHHMMSS to YYYYMMDD in a DTL? How?

I tried ConvertDateTime() without success.

I'm using Iris for Health

Thank you!

Product version: IRIS 2023.3

$ZV: 2023.1.3

Discussion (3)2

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Jeffrey Drumm · Sep 11

I'm not sure why ConvertDateTime() failed; informat should be "%Y%m%d%H%M%S" and outformat "%Y%m%d" for your example transformation. Regardless, you can also use $EXTRACT(<sourcedate>,1,8). There's also the SubString() method in the DTL function list, which takes the same arguments.

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Jeffrey Drumm · Sep 12

$E is the shorthand version of $EXTRACT ...

ConvertDateTime(source.{PID:DateTimeOfBirth},"%Y%m%d%H%M%S","%Y%m%d") should work just fine.$E(source.{PID:DateTimeOfBirth},1,8) by itself should provide the same result.

But ConvertDateTime($e(source.{PID:DateTimeofBirth},1,8)) is basically taking the 8-digit date returned from $E() and converting it without any input and output patterns ... which gets you the exact same 8-digit date.

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score 0 · Answer 1 · 2024-09-12T13:53:07-04:00

Thank you Jeffrey!

Late in the day yesterday, I figure out this was missing in my configuration: $e

I was able to set up ConvertDateTime function correctly like this:

ConvertDateTime($e(source.{PID:DateTimeofBirth},1,8))