A database (DB), in the most general sense, is an organized collection of data. More specifically, a database is an electronic system that allows data to be easily accessed, manipulated, and updated. In other words, a database is by an organization as a method to store, manage, and retrieve information. Modern databases are managed using a database management system (DBMS).
Software programmers are well acquainted with database concepts through relational databases like Oracle, SQL SERVER, MySQL, etc. Typically, database structure stores data in a tabular form.Database architecture can be external, internal, or conceptual. The external level specifies the way in which every end-user type comprehends the organization of its corresponding relevant data in the database. The internal level deals with the performance, scalability, cost, and other operational matters. The conceptual level unifies the different external views perfectly into a defined whole global view. It consists of every end-user required generic data.
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