DB2 is a Relational Database Management System (RDBMS). IBM introduced it in 1983, to run on its Multiple Virtual Storage (MVS) mainframe platform.

Its name refers to the change from the hierarchical database model (incredibly popular at the time) to the new relational model. While DB2 was originally created to function on IBM mainframe platforms only, it was later ported to the following operating systems: Windows, UNIX, and Linux.

DB2 is a key component in the IBM information management portfolio: this database engine offers a wealth of features and high performance. And it has the capacity to handle data in large amounts and serve many users at the same time.

How Does DB2 Work?

A relational database allows for a declarative data model, and makes it accessible through queries. IBM built the now standard Structured Query Language (SQL) for that purpose.

SQL is a simple language similar to English. With this, users can create tables, and manipulate the internal data. Numerous table entries (known as records) may be inserted, deleted, and updated by various users, all at the same time, using specific SQL commands.

In the ‘90s, a form of DB2 known as LUV (Linux, Unix, Windows) was released. This marked the database’s porting to smaller-type computing platforms. DB2 runs on a wide variety of platforms, covering mainframes and large distributed platforms to PCs on a smaller scale.

DB2 Express-C is a free version with similarities to the open-source MySql, though it’s not open-source. It’s available to the developer community.

DB2 may be administered via a GUI or a command-line prompt. Its highly advanced security and features have contributed to it becoming a popular database in today’s software industry.

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