Database MCQ Questions

Post A Question

Classifications:

MCQ Questions Categories:

No collections found!

Constraint checking can be disabled in existing _______________ and _____________ constraints so that any data you modify or add to the table is not checked against the constraint
icon 1 answers
icon296 Views
icon0 Likes
Isolation of the transactions is ensured by
icon 1 answers
icon314 Views
icon0 Likes
SNAPSHOT is used for (DBA)
icon 1 answers
icon356 Views
icon0 Likes
Which of the following is not a property of transactions
icon 1 answers
icon346 Views
icon0 Likes
What would be the outcome of the below query?
icon 1 answers
icon363 Views
icon0 Likes
Evaluate the following SQL statements in the given order
icon 1 answers
icon347 Views
icon0 Likes
A non-correlated subquery can be defined as ______
icon 1 answers
icon272 Views
icon0 Likes
Which statement is true regarding external tables
icon 1 answers
icon292 Views
icon0 Likes
In which scenario would you use the ROLLUP operator for expression or columns within a GROUP BY clause?
icon 1 answers
icon310 Views
icon0 Likes
EMPDET is an external table containing the columns EMPNO and ENAME. Which command would work in relation to the EMPDET table?
icon 1 answers
icon235 Views
icon0 Likes
__________ are used to ensure that transactions access each data item in order of the transactions’ ____ if their accesses conflict
icon 1 answers
icon565 Views
icon0 Likes
A concurrency-control policy such as this one leads to ______ performance, since it forces transactions to wait for preceding transactions to finish before they can start
icon 1 answers
icon209 Views
icon0 Likes
In concurrency control policy the the lock is obtained on
icon 1 answers
icon262 Views
icon0 Likes