A key is a set of attributes that is irreducibly unique and non-nullable within a table.
I am reading about candidate keys and composite keys. I came to know that a candidate key can qualify as …
sql composite-key candidate-keyHere I found this: Definition: A determinant in a database table is any attribute that you can use to determine …
sql database functional-dependencies candidate-keyR = (A, B, C, D, E) The functional dependencies are: A -> B ED -> A BC -&…
functional-dependencies candidate-keyPlease consider the following table definition... Table Definition CREATE TABLE [dbo].[Folders]( [Id] [int] IDENTITY(1,1) NOT NULL, [UserId] [int] NOT …
sql-server candidate-keyGiven a relation schema R with n attributes R(A1, A2, ..., An). What’s the maximum number of possible super-keys …
database rdbms candidate-key