If You Find a Many-To-Many Relationship,which of the Following Is

question 15

Multiple Choice

If you find a many-to-many relationship,which of the following is a guideline to be followed when creating an intersection relation?

• A)Create a new E-R diagram (showing no cardinality)with the original two relations in the middle and a new one (the intersection relation)in the end.
• B)Move the minimum cardinality appearing next to the left relation just to the left of the intersection relation.
• C)Move the minimum cardinality appearing next to the right relation just to the right of the intersection relation.
• D)The new minimum and maximum cardinalities for the two original relations will be one and one.

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