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Discriminator Field

  • April 30, 2013 at 2:39 am

    #272003

    Hi

    could anyone tell me whya discriminator column would be added to a table?

    what is a discriminator column? what is it used for?

    thanks in advance

  • May 1, 2013 at 6:27 am

    #1611527

    One possible reason for a discriminator column is implementing the Table-Per-Hierarchy (TPH) pattern using Entity Framework (EF). In TPH, an entire class hierachy is stored in a single table, and the discriminator column is used to indicate which specific class the record holds.

    For more information, check out this... http://msdn.microsoft.com/en-us/data/jj618292 ...Entity Framework page.

    Thanks,
    MKE Data Guy

  • May 1, 2013 at 9:54 am

    #1611634

    thats iot mate thanks a lot

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