Home/ Questions/Q 836295
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-15T04:57:30+00:00

I have a ‘guests’ table and ‘invitations’ table bound with many-to-one relationship in a

  • 0

I have a ‘guests’ table and ‘invitations’ table bound with many-to-one relationship in a postgreSQL database. I have removed some guests and now I want to remove invitations that have no guests. I tried using ‘COUNT’, but aggregates are not allowed in WHERE clause.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Check this : 

    delete from invitations where invitationid 
not in (select invitationid from guests)
    • 0