...Ti_Jay...

...sinto-me um...

"...losing coupling system..."

ou seja : ...databases are unfortunately notorious for high coupling. Within the database, there is coupling between tables via foreign keys to other tables, and further coupling between tables and database code, such as triggers and stored procedures, which manipulates those tables. A more significant problem is the coupling between a database and the systems that access it, including online applications, batch jobs, reporting applications and data extraction systems. Within these systems, the same data tables and columns are often accessed from several parts of the system, again increasing the system's interconnections. Therefore, a simple data refactoring can trigger a cascade of other refactorings within your database and source code...."