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I am doing a past exam paper and i don't have the answer, can anyone tell me if this is correct.
The Question is : Make the AU_ID and the ISBN the Primary Key of the BOOK_AUTHOR table

My answer : ALTER TABLE BOOK_AUTHOR
ADD CONSTRAINT PK_BOOK_AUTHOR Primary Key CLUSTERED (AU_ID),(ISBN)
Posted 20-Nov-12 6:34am
yu2ish325
Comments
Tim Corey at 20-Nov-12 13:09pm
   
Have you tried it out on a database? That would tell you for sure and it would be more instructive than a simple yes/no from us.
yu2ish at 20-Nov-12 13:16pm
   
Oh sorry i forgot to mention, my sql server has stopped responding --'
instead of wasting more time on trying to repair it or i thought of using that time in trying to work out the questions.

1 solution

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Solution 1

Here is the correct query that works.

ALTER TABLE BOOK_AUTHOR ADD CONSTRAINT PK_BOOK_AUTHOR Primary Key CLUSTERED (AU_ID,ISBN)
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