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INSY 3304 CH 3 EXAM STUDY GUIDE WITH COMPLETE SOLUTIONS
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INSY 3304 CH 3 EXAM STUDY GUIDE WITH COMPLETE SOLUTIONS If a foreign key contains either matching values or nulls, the tables that make use of such a foreign key are said to exhibit ________ integrity. - Answer-Referential The use of a(n) ________ relationship ensures that two entity sets are n...

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  • October 5, 2024
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  • 2024/2025
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EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024




INSY 3304 CH 3 EXAM STUDY GUIDE
WITH COMPLETE SOLUTIONS

If a foreign key contains either matching values or nulls, the tables that make use of such a foreign key

are said to exhibit ________ integrity. - Answer✔✔-Referential


The use of a(n) ________ relationship ensures that two entity sets are not placed in the same table

when they should not be. - Answer✔✔-1 : 1


A relational operator that yields all rows in one table that are not found in the other table is the

________ operator. - Answer✔✔-difference


No invoice can have a duplicate number, nor can it be null. This is an example of ________. - Answer✔✔-

entity integrity


A(n) ________ links tables by selecting only the rows with common values in their common attribute. -

Answer✔✔-natural join


The one-to-many (1:M) relationship is easily implemented in the relational model by putting the primary

key of the "1" side in the table of the "many" side as a ________ key. - Answer✔✔-foreign


________ are especially useful when you are trying to determine what values in related tables cause

referential integrity problems. - Answer✔✔-outer joins


________ data is also known as string data. - Answer✔✔-Character




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