RDBMS-Relational Database Management System
databases, the relationship between data files is relational. Hierarchical and
network databases require the user to pass a hierarchy in order to access
needed data. These databases connect to the data in different files by using
common data numbers or a key field. Data in relational databases is stored in
different access control tables, each having a key field that mainly identifies
each row. In the relational databases are more reliable than either the
hierarchical or network database structures. In relational databases, tables or
files filled up with data are called relations designates a row or record, and
columns are referred to as attributes or fields.
databases work on each table has a key field that uniquely indicates each row, and
that these key fields can be used to connect one table of data to another.
relational database has two major reasons
Relational databases can be used with little or no
Database entries can be modified without specify
the entire body.
of Relational Tables
relational database we have to follow some properties which are given below.
Values are Atomic
Row is alone.
Column Values are of the same thing.
Columns are undistinguished.
Sequence of Rows is Insignificant.
Each Column has a common Name.