Malloc Corporation - dataMigrationCaseStudy

By: Malloc  09-12-2011
Keywords: Oracle Database, Database Structure, Referential Integrity,

Task #1: Design new Oracle database.

Target database has to be designed however in order to do that source database and data has to be fully understood. It is common misconception that this can be done only by analyzing application. Unless your application is based on a spreadsheet - it simply cannot be done. The only way to understood the database structure and data is to look at the database and data itself. Having data model (ER Diagram) will definitely help understood database structure however it will not do much when it comes to understanding data stored in the database, its format, usage, patterns, spreads, etc. Also, many legacy databases do not implement referential integrity and sometimes are not even properly designed so even rudimentary data rules are implemented and controlled at the application level and not by database engine.

Keywords: Database Structure, Oracle Database, Referential Integrity,

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