Relational Databases

Best Relational Databases include:

PostgreSQL, Oracle Database, Microsoft SQL Server, MySQL, SAP HANA, Microsoft Access, and IBM Cloud Databases.

Relational Databases  TrustMap

TrustMaps are two-dimensional charts that compare products based on trScore and research frequency by prospective buyers. Products must have 10 or more ratings to appear on this TrustMap.

Relational Databases Overview

Relational Database Software Overview

What is Relational Database Software?

A relational database is nothing more than a data repository that stores information in structured tables with rows and columns. Because data is stored in a structured way, it can be retrieved using a query language that understands the table structure.

Relational Database Features & Capabilities

  • ACID (Atomicity, Consistency, Isolation, Durability) compliance ensuring database transactions are processed reliably

  • Referential integrity ensures that relationships between tables remain consistent

  • Fine-grained locking or synchronization mechanisms for managing simultaneous access of the same data by multiple users

  • Support for Unicode for multilingual capability

  • Ability to run database seamlessly on multiple platforms

  • Ability to recover data in the event of a failure

How it works

A table is referred to as a relation in the sense that each row contains data that is related to a single entity, while each column represents different keys or concepts.


When each row in a table is different, it is possible to use one or more columns to identify a particular row. There is always a “primary key” which serves as the unique identifier for each entity or record. For example, in the case of a table of company employees, the primary key might be employee number.

The SQL Query Language

Data is retrieved from the table using a specialized language called Structured Query Language or SQL. SQL allows users to query the data using SELECT statements and WHERE clauses. A group of SQL statements can be called as a mini-program or executable which is called a stored procedure.


SQL is a widely understood language with a deep bench of practitioners in the marketplace. For this reason, tools using SQL are being developed to query non-relational big data stores like Hadoop, which use less well known, and harder to use, interfaces to retrieve data.

Pricing Information

There are several robust free relational databases on the market like MySQL and PostgreSQL. Traditional highly-robust and fully-featured enterprise relational databases like Oracle start at about $45,000 for a single license for two processing cores. However, significant discounts are usually available.


Relational Databases Products

(1-25 of 51) Sorted by Most Reviews

Oracle Database
1,056 ratings
171 reviews
Top Rated
The Oracle Database, now in edition 19c, is presented by the vendor as an industry leading database that delivers leading-edge innovations, including machine learning to enable self-driving data management. An enterprise, database cloud service, it is designed to support mixed workloads through any …
SAP HANA
292 ratings
141 reviews
Top Rated
TRUE
SAP HANA is an application that uses in-memory database technology to process very large amounts of real-time data from relational databases, both SAP and non-SAP, in a very short time. The in-memory computing engine allows HANA to process data stored in RAM as opposed to reading it from a disk whic…
MySQL
795 ratings
102 reviews
Top Rated
MySQL is a popular open-source relational and embedded database, now owned by Oracle.
Microsoft Access
621 ratings
81 reviews
Top Rated
Microsoft Access is a database management system from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools.
IBM Cloud Databases
182 ratings
76 reviews
Top Rated
TRUE
IBM Cloud Databases are open source data stores for enterprise application development. Built on a Kubernetes foundation, they offer a database platform for serverless applications. They are designed to scale storage and compute resources seamlessly without being constrained by the limits of a singl…
Microsoft SQL Server
1,222 ratings
71 reviews
Top Rated
Microsoft SQL Server is a relational database.
DB2
82 ratings
16 reviews
DB2 is a relational database software solution offered by IBM.
Sequel Pro
27 ratings
13 reviews
Sequel Pro is a relational database software solution offered by Sequel Pro.
Amazon Aurora
66 ratings
12 reviews
Amazon Aurora is a MySQL compatible relational database system from Amazon Web Services.
Teradata Database
34 ratings
6 reviews
Teradata is a relational database and data warehouse.
SAP SQL Anywhere
10 ratings
5 reviews
SAP® SQL Anywhere® solutions aim to deliver enterprise-level data management and synchronization capabilities. The solutions are designed to run in remote and mobile environments on a wide range of small-footprint devices and in real-world conditions.
IBM Informix
8 ratings
4 reviews
Informix is an embedded relational database offering from IBM.
SAP IQ (formerly SAP Sybase IQ)
9 ratings
3 reviews
SAP IQ (formerly SAP Sybase IQ) is a columnar relational database management system (RDBMS) optimized for Big Data analytics.
MemSQL
7 ratings
3 reviews
MemSQL is a NoSQL database offering from the company of the same name in San Francisco.
Tibero
3 ratings
2 reviews
Tibero is a relational database software solution offered by TmaxSoft.
Postgres Plus Advanced Server
3 ratings
2 reviews
Postgres Plus Advanced Server is an advanced deployment of the PostgreSQL relational database with greater features and Oracle compatibility, from EnterpriseDB headquartered in Bedford, Massachusetts.
SAP Adaptive Server Enterprise
50 ratings
2 reviews
SAP® Adaptive Server® Enterprise (SAP ASE) promises to allow you to handle massive volumes of data and thousands of concurrent users to accelerate the growth of new data-driven business applications. The value proposition is to drive value with a faster, more efficient transactional system that is d…
Presto
10 ratings
2 reviews
Presto is an open source SQL query engine supported by Teradata designed to run queries on data stored in Hadoop or in traditional databases. Teradata's development of Presto followed the acquisition of Hadapt and Revelytix.
Valentina
2 ratings
1 reviews
Valentina is a relational database software solution offered by Paradigma Software.
MonetDB
1 ratings
1 reviews
MonetDB is an open source column-oriented relational database management system issued and supported by the Dutch MonetDB development team.
NuoDB
NuoDB is a relational database from the Cambridge, Massachusetts based company of the same name.
Kalido Information Engine
Kalido Information Engine is a relational database software solution offered by Magnitude Software, Inc.