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Database Testing

Databases are the collection of files which are interconnected. Databases at different servers may not be of same type, i.e. databases may be heterogeneous. Basically, database testing is a layered process. Database systems usually consist of four layers: the user interface (UI) layer, the business layer, the data access layer and the database itself. Testing at these different layers is important for a consistent database system. Often, web software accesses the database from different backbends, i.e. they access heterogeneous databases.