Hi,
I will explain DB-Engines Ranking ranks database management systems according to their popularity in the world.
Most popular database in the world is Oracle as everyone knows. MySQL and Microsoft SQL Server are following Oracle.
Popularity of PostreSQL is increasing day by day because of open source.
| DBMS | Database Model | Score | |||||||
| Feb | Jan | Feb | Feb | Jan | Feb | ||||
| 2019 | 2019 | 2018 | 2019 | 2019 | 2018 | ||||
| 1 | 1 | 1 | Oracle | Relational, Multi-model | 1264 | -4.82 | -39.3 | ||
| 2 | 2 | 2 | MySQL | Relational, Multi-model | 1167.3 | 13 | -85.2 | ||
| 3 | 3 | 3 | Microsoft SQL Server | Relational, Multi-model | 1040.1 | -0.21 | -82 | ||
| 4 | 4 | 4 | PostgreSQL | Relational, Multi-model | 473.56 | 7.45 | 85.18 | ||
| 5 | 5 | 5 | MongoDB | Document | 395.09 | 7.91 | 58.67 | ||
| 6 | 6 | 6 | IBM Db2 | Relational, Multi-model | 179.42 | -0.43 | -10.6 | ||
| 7 | 7 |
|
Redis | Key-value, Multi-model | 149.45 | 0.43 | 22.43 | ||
| 8 | 8 |
|
Elasticsearch | Search engine, Multi-model | 145.25 | 1.81 | 19.93 | ||
| 9 | 9 |
|
Microsoft Access | Relational | 144.02 | 2.41 | 13.95 | ||
| 10 | 10 |
|
SQLite | Relational | 126.17 | -0.63 | 8.89 | ||
| 11 | 11 |
|
Cassandra | Wide column | 123.37 | 0.39 | 0.59 | ||
| 12 |
|
|
MariaDB | Relational, Multi-model | 83.42 | 4.6 | 21.77 | ||
| 13 |
|
13 | Splunk | Search engine | 82.81 | 1.39 | 15.55 | ||
| 14 | 14 |
|
Teradata | Relational | 75.97 | -0.22 | 2.98 | ||
| 15 | 15 |
|
Hive | Relational | 72.29 | 2.38 | 17.23 | ||
| 16 | 16 |
|
Solr | Search engine | 60.96 | -0.52 | -2.91 | ||
| 17 | 17 |
|
HBase | Wide column | 60.28 | -0.12 | -1.43 | ||
| 18 | 18 |
|
FileMaker | Relational | 57.79 | 0.64 | 3.43 | ||
| 19 | 19 |
|
SAP HANA | Relational, Multi-model | 56.55 | -0.09 | 9.19 | ||
| 20 |
|
|
SAP Adaptive Server | Relational | 55.75 | 0.71 | -7.74 | ||
You can find the most popular database blogs in the blog.feedspot.com as follows.
https://blog.feedspot.com/database_blogs/
https://blog.feedspot.com/sql_blogs/
https://blog.feedspot.com/oracle_blogs/
https://blog.feedspot.com/postgresql_blogs/
https://blog.feedspot.com/mysql_blogs/
Do you want to learn Oracle Database for Beginners, then read the following articles.
https://ittutorial.org/oracle-database-19c-tutorials-for-beginners/
Do you want to learn Microsoft SQL Server DBA Tutorials for Beginners, then read the following articles.
https://ittutorial.org/sql-server-tutorials-microsoft-database-for-beginners/