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A database is an organized collection of structured information, on a file system
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Databases

A database is an organized collection of structured information, on a file system

A database is a collection of information that is organized so that it can be easily accessed, managed and updated. Computer databases typically contain aggregations of data records or files, containing information about sales transactions or interactions with specific customers.

A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS).

  • The Oracle. Oracle is the most widely used commercial relational database management system, built-in assembly languages such as C, C++, and Java
  • MySQL
  • MS SQL Server
  • PostgreSQL
  • MongoDB
  • IBM DB2
  • Redis
  • Elasticsearch

In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage.

Types of databases

  • Relational databases. Relational databases have been around since the 1970s
  • NoSQL databases
  • Cloud databases
  • Columnar databases
  • Wide column databases
  • Object-oriented databases
  • Key-value databases
  • Hierarchical databases

Types of database management systems

  • hierarchical database systems.
  • network database systems.
  • object-oriented database systems.