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by Richard Jonas.
Original Post: Refactoring Databases
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It's often a good idea to put as much logic as possible in the database layer â if you don't, you have to transmit more information across processes and machines, and moving information is slow, can be unreliable and is time-consuming to program.
Unfortunately, once you have a database structure, it can be difficult to update it. I posted a while ago about how a test driven development approach could be used to give you more confidence that any changes you make would work and not break...