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MCQ

Q.

A race condition occurs when

A

Two concurrent activities interact to cause a processing error

B

two users of the DBMS are interacting with different files at the same time

C

both (a) and (b)

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

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Database

E

None of the above

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2.

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

A

CREATE SCHEMA

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CREATE SYNONYM

C

CREATE SAME

D

All of the above

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Embedded pointer provide

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5.

A command that lets you change one or more fields in a record is

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Insert

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None of the above

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