How many different database applications exist? Many people can name the most common ones such as MySQL, Microsoft SQL Server, and Oracle. Most good DBAs and programmers could likely rattle off a dozen different databases is you asked them to.
This begs the question - how many can you name?
Before looking at the list below or reading any further, I challenge you to consider a number. More so, I challenge you to then write your list to see if you can meet the number you selected! To be clear - SQL Server 2016 and SQL Server 2018 count as the same database. Different release versions of the same database count as one!
I believe that I could rattle of a dozen easily. I believe that I could get to two dozen without too much of a struggling. I named three above, and if you simply think of major software companies and variants of those you can come up with several more.
I won't say what number I ended up listing without researching. With a little research, I have generated the list below that has well over 100 different databases included.
How many did you believe you could name? How many did you do? Post in a comment on this article your numbers. Did you see databases missing from our list? Feel free to include them in your comments as well!
The List of Databases
Here is a list of over 100 different databases. Different versions of the same database were not included.
Adaptive Server Enterprise
D3 Pick database
Empress Embedded Database
Extensible Storage Engine (ESE/NT)
H2 Database Engine
HP NonStop SQL
IBM Cloud NoSQL Database Service
jBASE Pick database
Linter SQL RDBMS
Micro Focus XDB Enterprise Server
Microsoft Azure SQL Database
Microsoft SQL Server
Microsoft Visual FoxPro
OpenEdge Advanced Business Language (Progress 4GL)