# Quiz Discussion

SELECT instructor.*
FROM instructor, teaches
WHERE instructor.ID= teaches.ID;

This query does which of the following operation?

Course Name: SQL -Structured Query Language

• 1]

All attributes of instructor and teaches are selected

• 2]

All attributes of instructor are selected on the given condition

• 3]

All attributes of teaches are selected on given condition

• 4]

Only the some attributes from instructed and teaches are selected

##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

Course(course_id,sec_id,semester)

Here the course_id,sec_id and semester are __________ and course is a _________

• 1]

Relations, Attribute

• 2]

Attributes, Relation

• 3]

Tuple, Relation

• 4]

Tuple, Attributes

##### Solution
2
Discuss

A relational database consists of a collection of

• 1]

Tables

• 2]

Fields

• 3]

Records

• 4]

Keys

##### Solution
3
Discuss

The result which the operation contains all pairs of tuples from the two relations, regardless of whether their attribute values match.

• 1]

Join

• 2]

Cartesian product

• 3]

Intersection

• 4]

Set difference

##### Solution
4
Discuss

For each attribute of a relation, there is a set of permitted values, called the ________ of that attribute.

• 1]

Domain

• 2]

Relation

• 3]

Set

• 4]

Schema

##### Solution
5
Discuss

The term _______ is used to refer to a row.

• 1]

Attribute

• 2]

Tuple

• 3]

Field

• 4]

Instance

##### Solution
6
Discuss

The ________ clause is used to list the attributes desired in the result of a query.

• 1]

Where

• 2]

Select

• 3]

From

• 4]

Distinct

##### Solution
7
Discuss
SELECT emp_name
FROM department
WHERE dept_name LIKE ’ _____ Computer Science’;

Which one of the following has to be added into the blank to select the dept_name which has Computer Science as its ending string?

• 1]

%

• 2]

_

• 3]

||

• 4]

\$

##### Solution
8
Discuss

The tuples of the relations can be of ________ order.

• 1]

Any

• 2]

Same

• 3]

Sorted

• 4]

Constant

##### Solution
9
Discuss

The_____ operation allows the combining of two relations by merging pairs of tuples, one from each relation, into a single tuple.

• 1]

Select

• 2]

Join

• 3]

Union

• 4]

Intersection

##### Solution
10
Discuss

A domain is atomic if elements of the domain are considered to be ____________ units.

• 1]

Different

• 2]

Indivisbile

• 3]

Constant

• 4]

Divisible

# Quiz