Databases are a very practical and useful subject. Before studying it, we need to know its trend like DB-Engines Ranking. Otherwise, we may study obsolete technologies.
Market Share of Database Management Systems (DBMSs)
The DBMS industry offers diverse technologies such as ORDBMS (object-relational), RDBMS (relational), XDBMS (XML), NoSQL, etc.
The chart below shows RDBMS market share in 2017. The RDBMS market is concentrated among a few vendors.
| The leading vendor in the RDBMS industry was Oracle with 42% RDBMS market share in 2017, followed by Microsoft with 24% RDBMS market share, IBM with 13% market share, SAP with 7%, Teradata with 3%, and others with 11%. |
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