How to select values from two different tables in SQL

Question

I have two tables in my SQL Server database. The first is Test1 and second is Test2. There is a column RegNo in both tables.

Now I

Answer 1

Try this:

SELECT Test1.SurName, Test2.Class, Test2.Medium
FROM Test1 INNER JOIN Test2
ON Test1.RegNo = Test2.RegNo
WHERE Test1.RegNo = desired_id