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Why user table has large no of columns ? Why don't we have different tables for specialized class like B2BCustomer , Employee etc ?

Why does hybris have data of all specialized types of users into user table only? What are the advantages of such a schema ?

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  • Best Answer
    Posted on Jan 15, 2016 at 12:23 PM

    Read up on Table per hierarchy vs Table per class e.g. http://blog.devart.com/table-per-type-vs-table-per-hierarchy-inheritance.html

    Basically

    TPH = better performance but more redundant columns and no chance of data integrity rules in the db

    TPC = worse performance (more joins) especially with large hierarchies but no redundant columns and possibility of enforcing data integrity in database

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