If you ve ever had cause to contemplate or execute the rewriting of an application to move from MySQL to Postgres or Oracle to MySQL or any other variety of database migration the importance of database abstraction is obvious to you. For many common database operations the SQL syntax is the same the basic operations are the same and the only difference is the client API you use to access the database. This article will explain why you should consider using MDB2 as your abstraction layer and show you how to do it. It is the second part of a four-part article that explains the virtues of PEAR….
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