Can a table have two primary keys?
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Answer Posted / dan
Kumar Navdeep Shanker
I have created the table provided and it works well.
You said that is possible to have two primary key, I am
sorry I have to disagree with you and all who said yes.
Let me explain using your table
cno balance cname
1 2 w
2 2 x
1 3 r
primary key no two tuple have the same value
what you are providing is a composite key
Thus, we can have more than one key in a table that the
compinaition of the keys are unique
BUT we have only one primary key that means it is unique
Please correct me if i am wrong
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