Skip to main content
Announcements
Have questions about Qlik Connect? Join us live on April 10th, at 11 AM ET: SIGN UP NOW
cancel
Showing results for 
Search instead for 
Did you mean: 
Not applicable

connect multiplie tables with more then once the same key.

Hi,

I try to connect 3 tables together, with only 2 different keys that exists in the 3 tables. (see screenshot)

I already connected them one way, but still need to connect the Contactpersons to the company table with the contact_id key.

The problem is, when I make that connection , a loop or syntactic key will emerge aAnd my QV app will freak out.

How can I achieve my last connection: to connect the Contactpersons to the company tables with the contact_id key.

Regards.

3 Replies
Not applicable
Author

Hi Simon,

first shot: Join the eMail addresses into the ContactPerson table.

Rainer

alal
Contributor II
Contributor II

Prinicipaly, i try to get around loops by having the joining key in all the tables. Sometimes i make the tables join on a dummy, hard coded key. But in your schema that won't work.

Try This:

Add person id to the companies table (maybe just left join to the contacts table and bring the contact's person_id in). You will then get Person Id & Contact Id as join keys between all 3 tables. There will be no loops anymore and your app should work.

Not tested this. So don't bite my head off if it doesn't work.

rbecher
MVP
MVP

Simon,

normally I would expect that a company table has one record per company (for each company) and a company_id is stored in the person table as a reference (foreign key). In this case you would'nt need to have a contact_id in the company table and everything goes fine in QV.

In your case you have a huge amount of redundant data in the company table...

If this structure resides in your database than you can transform this via SQL in the load script.

Ralf

Astrato.io Head of R&D