Question

I just want to ask how to get latest inserted ID from table A as an example and use it to enter a record in another table B?

Answer 1

If I got your question well, You need to perform two INSERT statements within one Stored Procedure and use the ID generated from the first statement to use it in the second statement, use SCOPE_IDENTITY()

create proc yourproc
    (
       -- parameter definitions here
    )
    as
    begin
            insert into Employee
            (FN,LN,Address) 
            values 
            (@FN,@LN,@Address)

    declare @EmployeeID int 
    set @EmployeeID = SCOPE_IDENTITY()

            insert into EmpContact
            (Empid, ContactType, ContactNumber) 
            values 
            (@EmployeeID, @ContactType, @ContactNumber) 
    end

SCOPE_IDENTITY and @@IDENTITY return the last identity values that are
generated in any table in the current session. However, SCOPE_IDENTITY
returns values inserted only within the current scope; @@IDENTITY is
not limited to a specific scope.

SCOPE_IDENTITY (Transact-SQL) – MSDN