• sjsubscribe (1/20/2010)


    Certainly the current practice is mixed at best or else no DBMS would allow null values as valid entries in a field. That's what the relational theory purists wants.

    I can see no conflict between data normalization and accepting null values in non-key columns - as all rdbms out there allow and enforce.

    _____________________________________
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at Amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.