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

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

please see a visual explanation of joins this is very helpful in learning joins.

Answer 2

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

Answer 3

Very Basic question, try google next time and this now:

SELECT Test1.SurName, Test2.Class, Test2.Medium
FROM Test1
inner join Test2 ON Test1.RegNo = Test2.RegNo

Answer 4

Try this:

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

Answer 5

If you are looking foe method without join and relation.This will do the trick.

select 
   (
   select s.state_name from state s where s.state_id=3
   ) statename,
   (
   select c.description from country c where c.id=5
   ) countryname
   from dual;   

where dual is a dummy table with single column--anything just require table to view

Answer 6

select
    Test1.SurName,
    Test2.Class,
    Test2.Medium
from Test1
inner join Test2
on Test1.RegNo = Test2.RegNo

And if you want to select your data for a particular RegNo, just add a WHERE clause to the end, like so:

select
    Test1.SurName,
    Test2.Class,
    Test2.Medium
from Test1
inner join Test2
on Test1.RegNo = Test2.RegNo
where Test1.RegNo = 123456   -- or whatever value/datatype your RegNo is