Normalization in DBMS MCQ. We covered all the Normalization in DBMS MCQ in this post so that you can practice well for the exam.
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Materialized views make sure that
a) View is verified for errors
b) View is updated
c) View is kept Stable
d) View is deleted after specifying the error
Option b – View is updated
The ……….. condition allows a general predicated over the relations being joined
a) On
b) Using
c) Set
d) Where
Option a – On
Which of the join operations do not preserve non-matched tuple
a) Left outer Join
b) Right outer Join
c) Inner Join
d) None
Option c – Inner Join
A …….. Consists of a sequences of query or update statements.
a) Transaction
b) Commit
c) Rollback
d) Flash back
Option a – Transaction
Which of the following makes the transaction permanent in the database
a) View
b) Commit
c) Rollback
d) Flash back
Option b – Commit
What does rollback do
a) Un-does the Transaction before commit
b) Clear all Transactions
c) Redo all the transaction before commit
d) No Action
Option d – No Action
A …….. is a special kind of stored procedure that execute in response to certain action on table
a) View
b) Trigger
c) Function
d) None
Option b – Trigger
Triggers are supported in ………
a) Delete
b) Update
c) View
d) ALL
Option c – View
The variables in the trigger are declared using ……… symbol
a) –
b) @
c) /
d) /@
Option b – @
which of the following creates a virtual relationship and stores the query
a) View
b) Procedure
c) Function
d) None
Option a – View
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