What Is The Difference Between Primary Key & Super Key
Answer Posted / tanmay dutta
Primary Key : Unique No. Not null.No duplicate.exam:Student_Id.
Super Key : Like (student_id + Student Name)
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What are different types of statements that are supported by sql?
What are the different types of replication are there in sql server 2000?
How to name query output columns in ms sql server?
What are the restrictions that views have to follow?
Why use triggers?
What are scalar functions in sql?
How to automatically create a log when an exception is being received into SQL Server?
Why do we need different type of parameter?
What is analysis service repository?
what is a live lock? : Sql server database administration
How to divide query output into multiple groups with the group by clause in ms sql server?
Mention the differences between substr and charindex in sql server.
Which are ddl commands?
How many clustered indexes can be created on a table? I create a separate index on each column of a table. what are the advantages and disadvantages of this approach?
Define right outer join in sql server joins?