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MCQ

Q.

When performing a look-up operation using a form

A

you enter the search value into the form

B

you look at each form sequentially until you see the one you want

C

you type the key in an entry line, and the correct form is displayed

D

All of the above

E

None of the above

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MCQ

1.

Each of data files has a _____ that describe the way the data is stored in the file.

A

File structure

B

Records

C

Fields

D

Database

E

None of the above

Discussion

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2.

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

A

SELECT DISTINCT

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SELECT UNIQUE

C

SELECT DIFFERENT

D

All of the above

E

None of the above

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An operation that will increase the length of a list is

A

Insert

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Look-up

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Modify

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All of the above

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None of the above

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The model for a _____ resembles the hierarchical model in many respects.

A

Network database

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Relational database

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Distributed database

D

Hierarchical database

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None of the above

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5.

In SQL, which command(s) is(are) used to create a synonym for a schema object?

A

CREATE SCHEMA

B

CREATE SYNONYM

C

CREATE SAME

D

All of the above

E

None of the above

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