SQL Server: creating table variable, error in primary key constraint definition

Question

I\'m trying to create a table variable with primary key. What is the difference between these two statements? Why the first one does not work?

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Answer 1

There are differences in the syntax between the CREATE TABLE (Transact-SQL) and DECLARE @local_variable (Transact-SQL) used in creating table variables. You can not use the syntax of the first statement to create a variable table.