AnswersDRHS-Business and Tech BLOCK 07.4410030Designing a Relational Database

Designing a Relational Database Answers

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1
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What does a primary key allow a user to do in a database?

A
uniquely identify a row in a table
B
uniquely identify a field in a table
C
limit the number of records in a table
D
calculate the number of records in a table
2
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✔ arrowasterisk checkbox column header

A
✔ arrow
B
asterisk
C
checkbox
D
column header
4

What is the purpose of the Lookup Wizard?

A
to create a yes/no field quickly
B
to reference data from another table
C
to combine more than one field in a table
D
to generate a random number automatically
5

Use the drop-down menus to complete the steps to open the Lookup Wizard.

Answers:
2. Click in the column of the desired field.:Data Type
3. Click the , and then click Lookup Wizard.:arrow
6

Use the drop-down menus to complete the steps to open the Lookup Wizard.

Answers:
2. Click in the column of the desired field.:Data Type
3. Click the , and then click Lookup Wizard.:arrow
7

What task do the referential integrity settings prevent?

A
editing a non-key field in a destination table
B
sharing data from one field between two tables
C
linking a primary key to another table’s primary key
D
deleting a record that has related records in another table
8

If the Cascade Update Related Records setting is activated, what happens when a change is made to the primary key of the primary table?

A
The Enforce Referential Integrity setting is deactivated.
B
Related records that refer to that primary key are orphaned.
C
A junction table is created to link the table with its related records.
D
Related records that refer to that primary key are edited to match.

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