ECAT Computer Science MCQS Page 3
A record in a database is the information refers to:
All
Person
Product
Event
Which of the following type of file require largest processing time?
Sequential file
Random file
Indexed sequential file
Direct access file
A constraint that no primary key should contain nulls is known as:
Entity integrity
Normalization
Dependence
SQL query
A field is to a record as:
A column is to a row
Data are to files
Files are to tables
Attributes are to columns
The manipulated and processed data is called:
Information
Object
Knowledge
Data
The table in which is found is called Dependent Table.
Foreign Key
Control key
Primary key
Sort Key
Which of the following may be a temporary life?
transaction file
master File
back up file
none of these
SQL is a(n):
Structured language
Unstructured language
Object oriented language
Software
—————- are written before the main () function
preprocessor directives
C statements
linking instructions
both a and b
The C statements are normally written in ——————– letters
lower-case
key words
upper-case
a or c
The type of files from functional point of view include:
a and b
Program file
Data file
None of these
A collection of data that consists of name ,address and email of a person is called:
Record
Byte
Character
Field
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