achieving 'select DISTINCT'

RE: achieving 'select DISTINCT'

Raj Yadla — Mon, 27 Feb 2017 15:35:08 GMT

Grouping using the queryAggregationColumn() also gives distinct values

RE: achieving 'select DISTINCT'

kumara0002 — Tue, 21 Feb 2017 23:52:08 GMT

Hi Paolo, i would suggest to use executestored procedure(either smart service or function) if the volume of data is high. a!queryEntity() has limitation when the volume is high. Your workaround is correct.distinct was deprecated from 7.x versions of appian and union() is the workaround left.

RE: achieving 'select DISTINCT'

jasmins — Tue, 21 Feb 2017 23:51:28 GMT

Hi paolos , you can use rule!APN_distinct(local!assetsAvailables.data) directly ,it will return distinct elements from local!assetsAvailables.data array .

RE: achieving 'select DISTINCT'

reginaldm377 — Tue, 21 Feb 2017 18:09:46 GMT

If its the latter, then what the others have posted will be the solution.

RE: achieving 'select DISTINCT'

reginaldm377 — Tue, 21 Feb 2017 17:22:19 GMT

Possibly an unnecessary question, but for clarification purposes, are you trying to return rows of data that contain only unique values in the Asset Type field, or are you simply wanting to return the name and count (for example) of unique asset types?

RE: achieving 'select DISTINCT'

mognons — Tue, 21 Feb 2017 16:04:34 GMT

Hi Paolo, you could also prepare an SQL view that implements your SELECT DISTINCT... statement, then map the view to a proper CDT and use Appian Query Rules (or a!queryEntity) to get the expected results.

RE: achieving 'select DISTINCT'

Mike Schmitt — Tue, 21 Feb 2017 15:50:57 GMT

I was about to say - this definitely sounds like something queryAggregation might be able to handle.

RE: achieving 'select DISTINCT'

Puspendu Pal — Tue, 21 Feb 2017 12:17:04 GMT

Hello Paolo,

Please refer the URL below :

docs.appian.com/.../Query_Recipes.html . Look at the section - "Get the Distinct Values of a Field"