What is Structure of an SQL Database?

At present software products are multileveled complex systems. They contain lots of data, execute many various functions. In order to manage, update and edit the data, they are stored in databases. Databases are one of the key elements of a software product back-end. Those, who are involved in mobile application testing, desktop testing and web site testing, know that it is impossible to provide the proper work of the application without correct functioning of SQL databases. One does not have to know structure and principles of operation of SQL databases in order to execute black box testing. But this knowledge is often very helpful for other testing works, for automated testing in particular. Each program is unique, and its SQL databases are unique as well. But all SQL databases have similar structural elements. An SQL Database Consists Of:
  • Database Schema. It comprises tables with different column types, keys, rules, defaults.
  • Stored Procedures. They are usually created on top of the database. They are used by APIs for communication with SQL databases. APIs in their turn pass the information to the program front end.
  • Triggers. They are saved procedures. They protect the data when they are entered, deleted, edited or updated.
Any software testing company wants its testers to be familiar with at least basic principles of work and notions of SQL databases. Testers with this knowledge work more efficiently. Source: QATestLab