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Database Holds Quiz
Which of the following constraints can be used to enforce the uniqueness of rows in a table?
DEFAULT andNOT NULLconstraints
FOREIGN KEYconstraints
PRIMARY KEYand UNIQUEconstraints
IDENTITY columns
Which of the following commands is used to change the structure of table?
CHANGE TABLE
MODIFY TABLE
ALTER TABLE
UPDATE TABLE
You are creating a client application that calls ActiveX DLLs. Which of the following properties of the Err object provides the name of a component that sends an error back to the client application?
Number
Description
Component
Source
This database holds personal information. The user can help to keep it confidential by
using a password
keeping abackup copy
keeping theoriginal papercopy
saving the file withdifferent filenames
If the database holds customer names and addresses, personalised letters can be created automatically using
the product code
the primary key
mail merge
e-mail
Application software suited to storing the survey information obtained in the table would be
A database
Graphics
browser
e-mail
The characters * and ? are sometimes used in search criteria as
bookmarks
operators
wildcards
engines
Which of the following field types will generate the primary key automatically?
Auto Primary
Auto ID
Auto Number
Auto Key
Referential integrity ensures that the:
records in adynaset areconsistent withthe underlyingtables.
related tables ina database areconsistent withone another.
forms in adatabase areconsistent withthe underlyingtables orqueries.
reports are consistentwith the underlyingtables or queries.
Tables are related to one another through a:
foreign key.
main form and asubform.
query and itsassociateddynaset.
report and its relatedquery.
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