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MCQ

An indexing operation

sorts a file using a single key

sorts file using two keys

establishes an index for a file

both (b) and (c)

None of the above

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Which command(s) is(are) used to redefine a column of the table in SQL ?

ALTER TABLE

DEFINE TABLE

MODIFY TABLE

All of the above

None of the above

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The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a

forecasting report

exception report

regularly scheduled report

on demand report

None of the above

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The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in

a tree file

an indexed file

a hashed file

a sequential file

None of the above

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In order to use a record management system

You need to understand the low-level details of how information in stored

You need to understand the model the record management system uses.

Both (a) and (b)

All of the above

None of the above

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A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa.

One-to-one relationship

One-to-many relationship

Many-to-one relationship

Many-to-many relationship

None of the above

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