4. Define RDBMS with example.
Define RDBMS with example
RDBMS is the abbreviated form of Relational
Data Base Management System.
A
relational database management system (RDBMS) is a database management system
(DBMS) that is based on the relational model as invented by E. F. Codd, of
IBM's San Jose Research Laboratory. Many popular databases currently in use are
based on the relational database model.
RDBMSs have become a predominant choice for the
storage of information in new databases used for financial records,
manufacturing and logistical information, personnel data, and much more 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 been challenged by object databases, which
were introduced in an attempt to address the object-relational impedance
mismatch in relational database, and XML databases.
The most popular RDBMS are MS SQL Server, DB2,
Oracle and MySQL.
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