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From the Editor's Desk...

What Is a Business Rule?  -  We've been talking about where business rules should be implemented. Then, one reader asks the question, "What is a Business Rule?" Ouch, what an obvious question. So, here are some thoughts I guarantee are not comprehensive...see what you think.

Business Rules Outside SQL  -  Many individuals left great comments on my editorial on placing business rules outside of the database. Today, I'm providing a couple real world examples of putting business rules in another tier that were a stellar success.

It's Time to Break Your Business Rules Out of Your Database  -  For years we have held on to the best practice of keeping your business rule implementation close to the data, by enforcing them in a SQL database. I don't think that is wrong. However, I think you need to ask yourself, very seriously, what is the cost of that design decision. What are you giving up?

Design With Clarity  -  You can design a database, and using good naming conventions, you can provide valuable clarity to your schema without extra work.

Collaboration is the Best Primary Key  -  Based on the feedback on naming conventions for a primary key, it seems there is no front runner for a best practice. See what I mean...

Primary Key Names  -  This is a topic that continues to arise. Developers tend to have one position. DBAs have another. Today I share a recent conversation from both sides.

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Separation of Storage from Access  -  If you think about it, what do all of these database engines have in common: BTrieve, Fox Pro, Dbase, Omnis, Paradox, FireBird, SQL Server, Oracle, Sybase, MySQL, Posgres, Informix? They all support the independence of the internal storage from the data access tool, SQL. Why is that significant today?

Stateless Apps and RowVersion  -  Have you ever used a stateless app where they tried to implement database locking? There's a exercise in futility, resulting in more bugs than anything. A better implementation may be to use Optimistic Locking with a RowVersion data type in an SQL Server database.




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