Question and answer
What are some issues when working with a many-to-many relationship? Provide some examples.
Many-to-Many relationships in an entity relationship diagram tend to conceal areas of poor understanding, and in fact some databases will not allow you to create such relationships. Almost always, a Many-to-Many relationship conceals a hidden entity. [ For this reason, identifying and adding the hidden entity to the model eliminates Many-to-Many relationships. This usually ends up with an extra
entity being added, which then has a One-to-Many relationship with the existing entity. ]
Expert answered|majasalv17|Points 0|
Question
Asked 6/5/2013 1:23:38 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
0 questions answered
Popular Conversations
Financial statements should be prepared before any adjustments are ...
Weegy: Financial statements should be prepared before any adjustments are made. False. User: The credit side of an ...
7/4/2015 3:44:09 AM| 3 Answers
A chart of accounts does NOT include (Points : 1) assets. ...
Weegy: A chart of accounts does NOT include NAMES OF CUSTOMERS. User: Source documents provide objective, ...
7/4/2015 8:48:25 PM| 2 Answers
Profits from operating activities distributed to business owners are ...
Weegy: Profits from operating activities distributed to business owners are called dividends. TRUE. User: The ...
7/4/2015 3:55:42 AM| 1 Answers
Weegy Stuff
S
1
L
P
1
1
Points 127 [Total 1533]| Ratings 1| Comments 117| Invitations 0|Offline
S
1
Points 94 [Total 605]| Ratings 0| Comments 94| Invitations 0|Online
S
P
C
L
P
L
1
P
P
1
P
1
P
Points 49 [Total 9578]| Ratings 0| Comments 49| Invitations 0|Offline
S
Points 31 [Total 31]| Ratings 1| Comments 21| Invitations 0|Offline
S
1
L
L
Points 24 [Total 8404]| Ratings 0| Comments 24| Invitations 0|Offline
S
R
Points 6 [Total 208]| Ratings 0| Comments 6| Invitations 0|Offline
S
L
P
P
Points 4 [Total 3563]| Ratings 0| Comments 4| Invitations 0|Offline
S
Points 4 [Total 4]| Ratings 0| Comments 4| Invitations 0|Offline
S
Points 1 [Total 1]| Ratings 0| Comments 1| Invitations 0|Offline
S
Points 1 [Total 44]| Ratings 0| Comments 1| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.