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Q.

SQL stands for ________ .

A

Structured Query Language

B

Sequential Query Language

C

Structured Question Language

D

Sequential Question Language

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MCQ

1.

In SQL, which command is used to select only one copy of each set of duplicable rows

A

SELECT DISTINCT

B

SELECT UNIQUE

C

SELECT DIFFERENT

D

All of the above

E

None of the above

Discussion

MCQ

2.

Which of the following is a serious problem of file management systems?

A

difficult to update

B

lack of data independence

C

data redundancy

D

program dependence

E

All of the above

Discussion

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3.

The method in which records are physically stored in a specified order according to a key field in each record is

A

hash

B

direct

C

sequential

D

all of the above.

Discussion

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4.

If you want your database to include methods, you should use a _____ database.

A

Network

B

Distributed

C

Hierarchical

D

Object-Oriented

E

None of the above

Discussion

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5.

Which of the following products implemented the CODASYL DBTG model?

A

IDMS

B

DB2

C

dBase-II

D

R:base

Discussion

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