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Difference between MariaDB and IBM Db2

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1. MariaDB :
MariaDB is an open-source relational database management system (RDBMS) that is a compatible drop-in replacement for the widely used MySQL database technology. It is developed by MariaDB Foundation and initially released on 29 October 2009. MariaDB has a significantly high number of new features, which makes it better in terms of performance and user-orientation than MySQL.

2. IBM Db2 :
IBM Db2 is a family of data management products, including database servers, developed by IBM. It is a Relational Database Management System (RDBMS) which supports object-oriented features and non-relational structure with XML. Db2 is designed to store, analyze and retrieve the data efficiently. It was initially released in 1983 and is written in C, C++, Java and Assembly language.

Difference between MariaDB and IBM Db2 :

1. It was developed by MariaDB Corporation Ab. in 2009 It was developed by IBM in 1983.
2. It is written in C, C++, Perl and Bash languages. It is written in C, C++, Assembly language, Java languages.
3. The primary database model for MariaDB is Relational DBMS. The primary database model for Db2 is also Relational DBMS.
4. Server operating systems for MariaDB are FreeBSD, Linux, Solaris and Windows. Server operating systems for Db2 are AIX, HP-UX, Linux, Solaris, Windows and z/OS.
5. It provides the concept of Referential Integrity and has Foreign keys. It also provides the concept of Referential Integrity and has Foreign keys.
6. It provides ACID transactions without snapshot isolation. It also provides ACID transactions.
7. Some companies like CUNY, Accenture, Docplanner, Nasdaq, Red Hat, ServiceNow, etc use MariaDB. Some companies like JPMorgan Chase, Bank of America, Scotiabank, Citi, etc use Db2.
8. It has dynamic columns data schema. It has a fixed data schema.

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Last Updated : 26 Jun, 2020
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