In any hierarchy of data organization, the smallest entity to be processed as a single unit is called

Introduction to Database System
In any hierarchy of data organization, the smallest entity to be processed as a single unit is called

data record

database

None of these

data field

data file

data record

database

None of these

data field

data file

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Introduction to Database System
With respect to data input, the most accurate description of batch control is

dividing documents to be entered into batches

None of these

controlling the input of each input clerk

All of these

comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system

dividing documents to be entered into batches

None of these

controlling the input of each input clerk

All of these

comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system

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Introduction to Database System
Because it contains a description of its own structure, a database is considered to be ________ .

described

metadata compatible

self-describing

an application program

described

metadata compatible

self-describing

an application program

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Introduction to Database System
In a relational schema, each tuple is divided into fields called

Queries

Domains

All of the listed here

Relations

Queries

Domains

All of the listed here

Relations

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Introduction to Database System
The different classes of relations created by the technique for preventing modification anomalies are called:

functional dependencies.

referential integrity constraints.

None of these

normal forms.

functional dependencies.

referential integrity constraints.

None of these

normal forms.

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Introduction to Database System
The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.

Flat file

Database

Data structure

None of these

Table

Flat file

Database

Data structure

None of these

Table

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Introduction to Database System

Introduction to Database System In any hierarchy of data organization, the smallest entity to be processed as a single unit is called

Introduction to Database System With respect to data input, the most accurate description of batch control is

Introduction to Database System Because it contains a description of its own structure, a database is considered to be ________ .

Introduction to Database System In a relational schema, each tuple is divided into fields called

Introduction to Database System The different classes of relations created by the technique for preventing modification anomalies are called:

Introduction to Database System The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.

Introduction to Database System
In any hierarchy of data organization, the smallest entity to be processed as a single unit is called

Introduction to Database System
With respect to data input, the most accurate description of batch control is

Introduction to Database System
Because it contains a description of its own structure, a database is considered to be ________ .

Introduction to Database System
In a relational schema, each tuple is divided into fields called

Introduction to Database System
The different classes of relations created by the technique for preventing modification anomalies are called:

Introduction to Database System
The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.