Related Functions
It is often useful or necessary to know what identity value was generated by an INSERT command. Microsoft SQL Server provides several functions to do this: @@IDENTITY provides the last value generated on the current connection in the current scope, while IDENT_CURRENT(tablename) provides the last value generated, regardless of the connection or scope it was created on.
Example:
INSERT INTO Contacts ( FirstName, LastName ) VALUES ( 'Test', 'User' ) -- SELECT @@IDENTITY -- OR -- DECLARE @ID INT SELECT @ID = @@IDENTITY UPDATE Contacts SET Phone = 'XXX-YYY-ZZZZ' WHERE ContactID = @IDRead more about this topic: Identity Column
Famous quotes containing the words related and/or functions:
“There is nothing but is related to us, nothing that does not interest us,—kingdom, college, tree, horse, or iron show,—the roots of all things are in man.”
—Ralph Waldo Emerson (1803–1882)
“One of the most highly valued functions of used parents these days is to be the villains of their children’s lives, the people the child blames for any shortcomings or disappointments. But if your identity comes from your parents’ failings, then you remain forever a member of the child generation, stuck and unable to move on to an adulthood in which you identify yourself in terms of what you do, not what has been done to you.”
—Frank Pittman (20th century)