Tag: Data Integrity


  • A relational database follows the principles of relational algebra and is based on a structured schema. The data is stored in tables, where each table consists of unique rows, and each row has attributes that define the characteristics of the stored data. The relational model was introduced by Edgar F. Codd in 1970 and has…

  • A DBMS acts as an interface between users and the database, allowing them to store, retrieve, update, and delete data using structured queries. It provides mechanisms for managing concurrent access, ensuring data consistency, and enforcing security constraints. Examples of DBMS include MySQL, PostgreSQL, Oracle, and Microsoft SQL Server. A Database Management System (DBMS) is a…

  • A database is a structured collection of data that is stored and managed electronically. Databases are essential for storing large volumes of information and enabling efficient retrieval, modification, and management of this data. They can range from simple systems (such as a spreadsheet) to complex systems used by enterprises, such as financial databases or customer…