how to resolve an exception " Unable to update the EntitySet 'tablename' because it has a DefiningQuery"?

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A)

many-to-many mapping table was missing PK(Primary key).By adding Primary key into table

B)

one to many mapping table was missing fk(foreign key).by adding foreign key into table

C)

none

 

Author Explanation :

many-to-many mapping table was missing PK(Primary key).by adding  primary key into a table

Answers Posted

PostedBy By: Abhishek Kumar, at 06:47 PM on 07-July-2019

Answer Posted: A

Explanation: a

Result: Correct

PostedBy By: vamshi, at 12:10 PM on 25-April-2019

Answer Posted: A

Explanation: A

Result: Correct

PostedBy By: jayaprathap, at 12:07 PM on 25-April-2019

Answer Posted: A

Explanation: its working with the legacy system

Result: Correct

PostedBy By: vamshi, at 10:04 AM on 23-April-2019

Answer Posted:

Explanation: B

Result: Wrong Answer

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