Top "Candidate-key" questions

A key is a set of attributes that is irreducibly unique and non-nullable within a table.

What is the difference between candidate key and composite key?

I am reading about candidate keys and composite keys. I came to know that a candidate key can qualify as …

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Are Determinants and Candidate Keys same or different things?

Here I found this: Definition: A determinant in a database table is any attribute that you can use to determine …

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Finding candidate keys for given relation

R = (A, B, C, D, E) The functional dependencies are: A -> B ED -> A BC -&…

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How do I create a composite candidate key for a table in SQL Server?

Please consider the following table definition... Table Definition CREATE TABLE [dbo].[Folders]( [Id] [int] IDENTITY(1,1) NOT NULL, [UserId] [int] NOT …

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Candidate and Superkey

Given a relation schema R with n attributes R(A1, A2, ..., An). What’s the maximum number of possible super-keys …

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