how to make 2 columns in DB as primary key

RE: how to make 2 columns in DB as primary key

sparshs — Tue, 29 Nov 2016 19:27:53 GMT

I agree with venusaikumarc , you make changes in your database to put up a additional column in your table which will have data from both the columns and that you can define as your primary key. I think that should work.

RE: how to make 2 columns in DB as primary key

aloks0189 — Tue, 29 Nov 2016 12:54:48 GMT

@priyankav Yes you are right, we can define more than one column as Primary using @Id, and Combined Primary key is a combination of two or more columns in a table that can be used to uniquely identify each row in the table

RE: how to make 2 columns in DB as primary key

Priyanka — Tue, 29 Nov 2016 12:40:01 GMT

I tried @ Id for both columns and able to see the primary key image on both of them . Hope that is the combined primary key

RE: how to make 2 columns in DB as primary key

Venu — Tue, 29 Nov 2016 11:05:30 GMT

@Priyanka,
You can create additional column to save combination values of fundid and business effective month like FUN001_Jan, Make that additional column as PK in your CDT.
From DB side Additional Column should be Unique Key, PK is (fundid and business effective month).

https://forum.appian.com/suite/help/16.3/Database_Schema_Best_Practices.html#composite-keys

RE: how to make 2 columns in DB as primary key

aloks0189 — Tue, 29 Nov 2016 11:01:28 GMT

@priyankav Did you try repeating @Id Annotation for both