Comments on: Where Does the Business Logic Go? http://crankydba.com/2009/09/29/where-does-the-business-logic-go/ Mike Hillwig thinks you're entitled to his opinion. Fri, 13 Jan 2012 11:02:48 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Mladen http://crankydba.com/2009/09/29/where-does-the-business-logic-go/comment-page-1/#comment-43 Mladen Tue, 29 Sep 2009 15:08:51 +0000 http://thecrankydba.com/?p=227#comment-43 for me it's a pretty simple answer. the data logic goes into the db the app logic goes out of the db. data logic is logic to keep data consistent because data is always accessed from multiple sources. app logic is doing weird business stuff with that data. data logic would be unique mail address. app logic would be person can have only 1 main mail since in other apps accessing the same data this may not be so. for me it’s a pretty simple answer.
the data logic goes into the db
the app logic goes out of the db.

data logic is logic to keep data consistent because data is always accessed from multiple sources.
app logic is doing weird business stuff with that data.

data logic would be unique mail address.
app logic would be person can have only 1 main mail since in other apps accessing the same data this may not be so.

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