A composite key is
Required when a table does not have any unique fields in it
The primary key with AutoNumber as the field type
Made up of two or more fields to uniquely identify records
Is a foreign key that uniquely identifies records
Correct Answer :
C. Made up of two or more fields to uniquely identify records
Related Questions
What is a form in MS Access
It is a printed page where users will write their data to fill it up
It is an input screen designed to make the viewing and entering data easier
This is an important part of database used by analysts to draw conclusions
All of above
Following is not a database model
network database model
relational database model
Object Oriented database model
None
Which of the field has width 8 bytes?
Memo
Number
Date/Time
Hyperlink
Which is not a view to display a table in Access?
Datasheet View
Design View
Pivot Table & Pivot Chart View
None of above
Which field type will you select when creating a new table if you require to enter long text in that field?
Text
Memo
Currency
Hyperlink
Which of the following database object hold data?
Forms
Reports
Queries
Tables
We can remove a relationship defined between two tables by
From Edit menu choose Delete Relationship
Select the relationship line and press Delete
Choose Delete option from Relationship menu
All of above
How can you define a field so that when entering data for that field it will display ****** instead of actual typed text
Input mask
Validation Rule
Indexed
IME Mode
The___ operator will cause a record to be selected only if two or more conditions are satisfied
Or
If or
Range
And
It is a database object to view, change, and analyze data in different ways
query
form
report
None of the above
What do you mean by one to many relationship between Student and Class table?
One student can have many classes
One class may have many student
Many classes may have many students
Many students may have many classes
If I create Student field in Fees table to store student_id of Students table, then this Student field in Fees table is called:
Foreign key
Native key
Composite key
Primary key
The__ button on the tool box display data from a related table
Sub form sub report
Relationships
Select objects
More controls
Queries in Access can be used as
view, change and analyze data in different ways
a source of records for forms and reports
Only a
Both a and b
You can set a controls border type to make the border invisible.
Transparent
Invisible
Do not display
No border
In a database table, the category of information is called ____________
tuple
field
record
All of above
To achieve AND effect when you are entering criteria in a query design window
write criteria values vertically one in a row
write criteria values horizontally
Write criteria values in same field separated with AND
Write criteria values in same field separated with &
Which of the following creates a drop down list of values to choose from a list?
OLE Object
Hyperlink
Memo
Lookup Wizard
When creating a new table which method can be used to choose fields from standard databases and tables
Create table in Design View
Create Table using wizard
Create Table by Entering data
None of above
In table design view, which key can be used to switch between the field names and properties panels?
F3
F4
F5
F6
The database language that allows you to access or maintain data in a database
DCL
DML
DDL
None of above
A composite key is
Required when a table does not have any unique fields in it
The primary key with AutoNumber as the field type
Made up of two or more fields to uniquely identify records
Is a foreign key that uniquely identifies records
The default and maximum size of text field in Access
50 and 255 Characters
8 and 1 GB
266 characters & 64000 characters
None of above
Referential integrity means
Do not enter a value in the foreign key field of a child table if that value does not exist in the primary key of the parent table
Do not enter a value in the primary key field of child table if that value does not exist in the primary key of the parent table
Do not enter a value in the foreign key field of a parent table if that value does not exist in the primary key of the child table
All of above
Cascade update option
means do not change the value in the primary key field if that record has related records in another table
means change all the related records in child tables if the record in parent table is changed
Both of above
None of above
The complete information about an entity in a database is called
Data
Information
Field
Record
The key uniquely identifies each record in a table.
primary key
key word
filed name
All of above
To duplicate a controls formatting you can use___
Manager
Wizard
Painter
Control
To create relationship between two tables
drag the primary key of a table into foreign key of another table
drag the foreign key of a table into the primary key of another table
drag any field from parent table and drop on child table
Any of above can be done to create relationship
An Access database object that is used to enter, view or edit records
Table
Form
Query
Report