Databases-Relational Model (GATE Computer Science): Questions 44 - 49 of 49

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Question number: 44

» Databases » Relational Model

MCQ▾

Question

________ A combination of date and time

Choices

Choice (4) Response

a.

int

b.

time

c.

timestamp

d.

var

Question number: 45

» Databases » Relational Model

MCQ▾

Question

________ ensures that a value that appears in one relation for a given set of attributes.

Choices

Choice (4) Response

a.

Integrity constraints

b.

Referential Integrity

c.

Domain

d.

Domain constraints

Question number: 46

» Databases » Relational Model

MCQ▾

Question

DDL stand for

Choices

Choice (4) Response

a.

Data dictionary language

b.

Data dictio language

c.

data definition language

d.

All of the above

Question number: 47

» Databases » Relational Model

MCQ▾

Question

What command used for delete a particular row

Choices

Choice (4) Response

a.

Truncate

b.

delete

c.

Drop

d.

Question does not provide sufficient data or is vague

Question number: 48

» Databases » Relational Model

MCQ▾

Question

The distinguishable parts of a record are called

Choices

Choice (4) Response

a.

Dada

b.

files

c.

Field

d.

None of the above

Question number: 49

» Databases » Relational Model

MCQ▾

Question

Attribute is equivalent to

Choices

Choice (4) Response

a.

File

b.

Field

c.

Row

d.

Column

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