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What Is a Database Management System (DBMS)?
September 14, 2016
A Database Management System (DBMS) like Oracle and SQL Server comprises complex software and software tools designed to logically store data for enterprise applications to access. The DBMS requires a Database Administrator (DBA) to manage a database. The DBMS is composed mainly with three primary elements: the data itself, the database engine, and the database schema.
The database core consists of tablespaces that contain critical data. At a high level, one shouldn’t think of a database as a single document where all your data is stored; instead, think of it as a file folder or a series of file folders that hold numerous files inside them.
The database engine is the complex software component of the DBMS that allows users to create, read, update, and delete (CRUD) data from the database. The database engine is able to work seamlessly while orchestrating online transaction processing (OLTP) in parallel with users querying the database for reporting and analytical purposes.
The database schema is the data structure supported by the DBMS. The schema uses a database language (i.e., SQL, NoSQL, etc.) to establish what data can and cannot be inserted or extracted in the database. There are two primary types of database schemas: logical and physical. A logical database schema communicates the logical constraints that apply to the data with tablespaces for example; while a physical database schema or structure establishes how the data is physically stored on a server.
Today’s Primary Types of DBMS:
Posted on Sep 14, 2016 | Tags: database management system, dbms, dba, crud, database, database engine, database schema, relational database management system, rdbms, hierarchical database management system, hdbms, flat file database management system, ffdbms, object oriented database management system, oodbms, odbms, tables | Comments (0)