Data Management

Q1. What do related fields in database form as a group?

Bank

Menu

Data file

Data record

Q2. What is the language used in application programs to request data called?

DDL

DML

VDL

SDL

Q3. Which of these are used to define a schema?

SDL and DDL

VDL and DDL

VDL and DML

DDL and DML

Q4. What does a relational database developer refers to a record?

An attribute

A tuple

Criteria

A relation

Q5. What is a report generator used for?

Print files on paper

Data entry

Update files

Delete files

Q6. What does a subschema express?

The physical view

The external view

The logical view

All of these above

Q7. Which of these is the E-R model symbol to represent a weak entity set?

Doubly outlined rectangle

Dotted rectangle

None of the above

Diamond

Q8. Which of these does the Count function in SQL return?

Columns

Groups

Distinct values

Values

Q9. What is the view of total database called?

External view

Conceptual view

Physical view

Internal view

Q10. The entity set in an E-R diagram is represented by:

Rectangle

Circle

Eclipse

Diamond box

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