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dbms-integrity-constraints-maping-mcq-quesstion
DBMS - Basic Concept of DBMS MCQ
DBMS - Three Schema /Architecture Design MCQ
DBMS - Different Types of Integrity Constraints maping MCQ
DBMS - Relational database ERD DFD Entity MCQ
DBMS - Different Types of Keys MCQ
DBMS- Relational Algebra | Relational Calculus | Different Types of Join MCQs
DBMS- Transaction & Concurrency Control | ACID Properties | Different State of Transaction MCQs
DBMS- Structured Query Language (SQL) | DCL | DDL | TCL | DML MCQs
DBMS- Functional Dependency and NormaliZation MCQs
DBMS- File Structures and File indexing MCQs
DBMS - Different Types of Integrity Constraints maping MCQ
Q1.
Which of the following constraints enforces that the value of the primary key can not be null?
[ VVIQ]
(A).Key constraint
(B).Entity integrity constraint
(C).Domain constraint
(D).Foreign key constraint
Q2.Which constraint are used to sets a default value for a column if no value is specified ?
[ VVIQ]
(A).Unique
(B).Not null
(C).Default
(D).Check
Q3.The constraints are commonly used in SQL:
[ VVIQ]
(A).Primary key
(B).Foreign key
(C).Not null, Unique
(D).All of the above, given options
Q4.constraints are used to specify
[ ]
(A).rules for database insertion
(B). rules for data in a table
(C). rules for data collection
(D).None
Q5.When data changes in multiple lists and all lists are not updated .This causes
[ RBI Grade B 2012]
(A).data redundancy
(B).duplicate data
(C).data consistency
(D).data inconsistency
Q6.Data duplication wastes the space , but also promotes a more serious problem called
[ IBPS PO 2015]
(A).instance
(B).isolated
(C).data inconsistency
(D).program dependency
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