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This article is about what three types of content are in the database. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

Database types include: 1. Relational database, including MySQL and MariaDB;2. Non-relational database, including Cassandra and MongoDB;3. Key-value database, including Dynamo and LevelDB.

Database types are:

1. Relational database

MySQL, MariaDB, Percona Server, PostgreSQL, Microsoft Access, Microsoft SQL Server, Google Fusion Tables, FileMaker, Oracle Database, Sybase, dBASE, Clipper, FoxPro, foshub.

Almost all database management systems come equipped with an Open Database Connectivity (ODBC) driver that enables integration between databases.

Non-relational databases (NoSQL)

BigTable（Google）、Cassandra、MongoDB、CouchDB。

3. Key-value database

Apache Cassandra (used by Facebook): Highly scalable, Dynamo, LevelDB (Google).

Additional information:

Database models: object model, hierarchical model (lightweight data access protocol), mesh model (large data store), relational model, object-oriented model, semi-structured model, flat model (tabular model, generally in the form of a two-dimensional array. such as Excel).

The architecture of a database can be broadly divided into three levels of generalization: inner, conceptual, and outer.

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