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What is the Difference between relation schema and relation instance?
difference between relation sehema and relation instance in dbms
What is a many to many relationship in dbms?
Many to many relationship in DBMS is usually a mirror of the real-life relationship between objects that tables represent.
What is the domain of the inverse of a relation?
The domain of the inverse of a relation is the range of the relation. Similarly, the range of the inverse of a relation is the domain of the relation.
Can you have a function that is not a relation?
No, a function must be a relation although a relation need not be a functions.
What is The relation is the set of output values for the relation?
A relation doesn't have an "output value", in the sense that a function does. A set of values is either part of the relation, or it isn't.
List the different generations of DBMS stating their main characteristics?
HIerchical developed 1960>Network>Relational
What is the cordinality of dbms?
the number of tuple in a relation is called the cordinality of a relation?
What is the Difference between relation schema and relation instance?
difference between relation sehema and relation instance in dbms
What are the characteristics of DBMS?
Database management system is full form of DBMS . Characteristics of a DBMS are following : 1) It maintains data integrity. 2) It reduces redundancy. 3) make access to data easy.
What are main characteristics of industrial relation system in India?
Trade unions, labor organizations and partnerships have all developed as a result of the industrial relation system in India. Employee participation and collective bargaining are also main characteristics of their system.
Give entity relation diagram for hospital system in dbms?
d_id,d_name
What is minimal normal form a relation must satisfy in dbms?
Third normal form.
Why relation have key in DBMS?
A software system that facilitates the creation and maintenance and use of an electronic database
What is the main objectives of DBMS?
find it urself Stupid answer
What do you mean by degree in DBMS?
It is the number of attribute of its relation schema. Its is an association among two or more entities..
What are main software modules of a dbms?
Hirarchical network relational
What are the basic concepts of DBMS?
DBMS stands for DataBase Management System. The main concepts are the structure, the manipulation, and a set of integrity rules.
