Relational database management system
A relational database management system (RDBMS) is a database management system (DBMS). It is based on the relational model as invented by Edgar F.Codd, of IBM’s San Jose Research Laboratory. In 2017, many of the databases in widespread use are based on the relational database model.
RDBMSs have been a common choice for the storage of information. In new databases used for financial records, manufacturing and logistical information, personnel data, and other applications since the 1980s. Relational databases have often replaced legacy hierarchical databases and network databases because they are easier to understand and use. However, relational databases have received unsuccessful challenge attempts by object database management systems in the 1980s and 1990s. These were introduced trying to address the so-called object-relational impedance mismatch between relational databases and object-oriented application programs. The same as XML database management systems in the 1990s. Despite such attempts, RDBMSs keep most of the market share, which has also grown over the years.
Sourced according to DB-Engines, in May 2017, the most widely used systems are Oracle, MySQL (open source), Microsoft SQL Server, PostgreSQL (open source), IBM DB2, Microsoft Access, and SQLite (open source).[1]
According to research company Gartner, in 2011, the five leading commercial relational database vendors by revenue were Oracle (48.8%), IBM (20.2%), Microsoft (17.0%), SAP including Sybase (4.6%), and Teradata (3.7%).[2]
According to Gartner, in 2008, the percentage of database sites using any given technology were (a given site may deploy multiple technologies):[3]
- Oracle Database – 70%
- Microsoft SQL Server – 68%
- MySQL (Oracle Corporation) – 50%
- IBM DB2 – 39%
- IBM Informix – 18%
- SAP Sybase Adaptive Server Enterprise – 15%
- SAP Sybase IQ – 14%
- Teradata – 11%
need more info on rdbms Reference: https://en.wikipedia.org/wiki/Relational_database_management_system
What does rdbms have to do with Si-mob?
Here at Si-mob ltd your Service industry online business we utilize mysql through all of our websites. If its fit for NASA it’s fit for Si-mob yes it’s been said. We have found mysql works supreme in the back, back-end of our sites. Its able to sort information and role processes in away that works seamlessly with our front end processes.