Scalar Subqueries can be used in the SQL update statement when they are used under the ____ clause(a) where(b) with(c) set(d) end

Scalar Subqueries can be used in the SQL update statement when they ar

1.	Scalar Subqueries can be used in the SQL update statement when they are used under the ____ clause(a) where(b) with(c) set(d) end
Answer» Correct answer is (c) set To explain I would say: SQL subqueries that can occur wherever a value is permitted provided the subquery gives only one tuple with a single attribute are called Scalar subqueries. Scalar Subqueries can be used in the SQL update statement when they are used under the set clause.

Discussion

No Comment Found

Related InterviewSolutions

The set of ________ in a precedence graph consists of all the transactions participating in the schedule(a) Vertices(b) Edges(c) Directions(d) None of the mentioned
Which of the following is a measure of reliability of a disk?(a) Seek time(b) Average latency time(c) Mean time to failure(d) Average seek time
Which of the following is a part of the Magnetic disk assembly?(a) Spindle(b) Read write head(c) Arm(d) All of the mentioned
If on every legal database instant, the two expressions generate the same set of tuples, the expressions are called as(a) Equal(b) Equivalent(c) Similar(d) Identical
Which of the following joins preserves the tuples of the relation on the left side of the operator?(a) Left outer join(b) Natural join(c) Right outer join(d) None of the mentioned
If a schedule S can be transformed into a schedule S’ by a series of swaps of non-conflicting instructions, then S and S’ are(a) Non conflict equivalent(b) Equal(c) Conflict equivalent(d) Isolation equivalent
Search algorithms that use an index are referred to as _________(a) Index scans(b) Search scans(c) Primary scans(d) Equality scans
The blocks residing on the disk are referred to as ___________(a) Physical blocks(b) Buffer blocks(c) Disk blocks(d) Disk buffer
If the operations do not wait to produce tuples, then it is called as _________(a) Demand driven pipeline(b) Producer driven pipeline(c) Query driven pipeline(d) None of the mentioned
A ________ ensures that any conflicting read and write operations are executed in timestamp order(a) Organizational protocol(b) Timestamp ordering protocol(c) Timestamp execution protocol(d) 802-11 protocol

Scalar Subqueries can be used in the SQL update statement when they are used under the ____ clause(a) where(b) with(c) set(d) end

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment