What Is a Database Management System (DBMS)? The Backbone of Every Data-Driven Business

For each time you view a patient record, place an online order, or view bank balances, software is working behind the scenes to organize, protect, and retrieve the information. That software is a database management system — and it’s one of the most important pieces of software that your business runs on.

A Database Management System (DBMS) is software that allows users and applications to create, read, update, and manage data in a database. It serves as an intermediate layer between the data and the people or programs that retrieve or use it, which means that it takes care of data storage and retrieval, security and integrity so that users don’t have to work with data files directly.

What Exactly Does a DBMS Do?

A DBMS is basically the management tool for the complete lifecycle of your data, which includes a number of important functions:

• Data storage and retrieval — effective storage of data on-disk and retrieval at high speed when needed.
• Query processing — interpreting requests (usually in SQL) and returning the proper results.
• Transaction management — ensuring groups of operations are carried out as a whole or not at all, which helps to ensure data remains consistent.
• Concurrency control — allowing users to work concurrently without conflicting each other.
• Security and access control — limiting access to and modifications of information.
• Backup and recovery — backing up data and restoring it when it is lost.
• Data Integrity — Rules to ensure that the data is accurate and valid.

Database Management Systems Have Various Forms

There are several types of Database Management Systems.

Not every DBMS platform is created equal. There are several main types of:

• Relational (RDBMS) — data stored in tables with rows and columns and SQL used. Examples: Oracle, Microsoft SQL Server, MySQL, PostgreSQL. Most often used for structured business data.
• NoSQL – models such as documents, key-value, columns or graphs for unstructured or changing data quickly. Example: MongoDB.
• Hierarchical — groups data in a parent-child structure like a tree.
• Network — offers many to many relationships rather than hierarchical.
• Object-oriented — Uses objects to store data, generally with a very close resemblance to object oriented programming.
• Large-scale analytics data warehouses (e.g., cloud-based columnar and cloud data warehouses, such as Snowflake, Amazon Redshift).

Difference Between DBMS and Traditional File Systems

Prior to the database systems, organizations used to keep their data in multiple files, which created the problem of duplicated data, inconsistencies, and lack of query ability for data across records.

With a DBMS, data is stored in a single place and accessed only as needed for ease of use, consistency is maintained and access is controlled, and SQL is used to pull specific data from the DBMS rather than writing custom code for each file.

Why a DBMS Is Important for Businesses?

The right and well-managed DBMS is responsible for dependable business functions, data integrity, compliance and scalability. A poorly designed platform or the wrong one results in sluggish applications, vulnerabilities, and expensive downtime.

Frequently Asked Questions

Database vs DBMS?

A database is a structured set of data. The software used to store, manage, secure and access that data is called a DBMS. The DBMS is the system to manage the content, the content is the database.

Is SQL a DBMS?

SQL (Structured Query Language) is the language that is used to communicate with a relational database. These databases are run by a software called a DBMS, which includes Oracle or MySQL, and understands the SQL commands.

Which are the top Database Management Systems (DBMS) platforms?

Relational databases such as Oracle, Microsoft SQL Server, MySQL and PostgreSQL are widely used databases, along with MongoDB for NoSQL/document databases.

Manage Your Databases with Confidence — RalanTech

Choosing, tuning, and maintaining the right DBMS is a full-time discipline. RalanTech’s database management services keep your databases secure, high-performing, and monitored around the clock across every major platform — Oracle, SQL Server, MySQL, PostgreSQL, and more. Not sure which platform fits your needs? Our database consulting team can help. Talk to our experts.