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MCQ

Q.

Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL?

A

DEFINE TABLE

B

MODIFY TABLE

C

ALTER TABLE

D

All of the above

E

None of the above

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MCQ

1.

In SQL, which command is used to create a database user?

A

ADD USER TO DATABASE

B

MK USER

C

CREATE USER

D

All of the above

E

None of the above

Discussion

MCQ

2.

A _____ means that one record in a particular record type is related to only one record of another record type.

A

One-to-one relationship

B

One-to-many relationship

C

Many-to-one relationship

D

Many-to-many relationship

E

None of the above

Discussion

MCQ

3.

Large collections of files are called

A

fields

B

records

C

databases

D

file system

E

None of the above

Discussion

MCQ

4.

If a piece of data is stored in two places in the database, then

A

storage space is wasted

B

changing the data is one spot will cause data inconsistency

C

it can be more easily accessed

D

both (a) and (b)

E

None of the above

Discussion

MCQ

5.

A form defines

A

where data is placed on the screen

B

the width of each field

C

both (a) and (b)

D

All of the above

E

None of the above

Discussion

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