Databases are one of the core components of every application. Testing for data stability & security, consistency is highly critical for every business. Data validity, integrity, performance and functions are tested as part of database testing.
Database testing usually consists of a layered process, including the user interface (UI) layer, the business layer, the data access layer and the database itself. The UI layer deals with the interface design of the database, while the business layer includes databases supporting business strategies.
Accurate updates in database, data inserts, deletion, are tested. Data constraints, data-front-end integration & business logic is ensured and exercised.
Databases, the collection of interconnected files on a server, storing information, may not deal with the same type of data, i.e. databases may be heterogeneous. As a result, many kinds of implementation and integration errors may occur in large database systems, which negatively affect the system’s performance, reliability, consistency and security. Thus, it is important to test in order to obtain a database system which satisfies the ACID properties (Atomicity, Consistency, Isolation, and Durability) of a database management system.
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