In Django, there is a need to do a joint unique index on several fields of a table. For example, the name and class 2 fields in the student table together represent ...
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django-unique-constraint-multiple-columns
Jun 26, 2020 — We decided to use Django because it's in Python, a language that we know ... Since the pairing of the person foreign key and the campaign foreign are guaranteed to be unique, ... The two column mappings we are going to focus on are ... alter table person_campaign drop constraint person_campaign_pk;.. Sep 3, 2019 — The Unique Constraint. Let's begin with a relatively easy check; ensuring two or more fields are unique. This check was previously .... Sep 26, 2018 — Django Localflavor has a whole bunch of these divisions, but there are only ... A unique constraint that applies to all columns that are not NULL. 939c2ea5af