What kinds of databases are there?

There are two types of databases, namely relational databases and non-relational databases.

1, relational database

Including: MySQL, MariaDB(MySQL replacement, English Wikipedia changed from MySQL to Maria DB), Percona Server(MySQL replacement), PostgreSQL, Microsoft Access, Microsoft SQL Server, Google Fusion Tables.

FileMaker, Oracle database, Sybase, dBASE, Clipper, FoxPro, foshub. Almost all database management systems are equipped with open database connectivity (ODBC) drivers, which can integrate various databases.

2. Non-relational database (NoSQL)

Including: BigTable(Google), Cassandra, MongoDB, CouchDB, Key Value Database, Apache Cassandra (used by Facebook): highly extensible, Dynamo, LevelDB(Google).

Extended data:

The role of database

Database management system is a computer software system designed for database management, which generally has basic functions such as storage, interception, security and backup.

Database management systems can be classified according to the database models they support, such as relational and XML. . Or classified according to supported computer types, such as server clusters and mobile phones.

Or classified according to the query language used, such as SQL and XQuery；; Or according to the focus of performance impulse, such as maximum scale and maximum running speed; Or other classification methods. No matter which classification method is used, some DBMS can cross categories, such as supporting multiple query languages at the same time.

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