Question

I got two tables with the same pk (idnumber).. I want to select all column from table1 where idnumber (table1’s pk) is equal to idnumber (table2’s pk where table2’s column = “some value”..)

please help… thank you

Here’s what I got so far..

SELECT     
    idnumber, fname, lname, mname, bday, gender, email, contact  
FROM         
    tblStudents   
WHERE     
    (idnumber =  (SELECT idnumber
                  FROM tblPayments
                  WHERE (payment1 = 0)))  

It’s not working…

I’m totally new to SQL Server.. just got started few days ago.. please help..

Answer 1

Assuming both tables share a common column, you can just perform an INNER JOIN and use the WHERE clause to perform additional filtering.

SELECT * FROM A INNER JOIN B ON A.SharedId = B.SharedId WHERE B.Column1 = 'foo';

SQL Join Fundamentals (2005)

I think the specific query you are looking for is:

SELECT 
    S.idnumber,
    S.fname,
    S.lname,
    S.mname,
    S.bday,
    S.gender,
    S.email,
    S.contact

FROM tblStudents S 
    INNER JOIN tblPayments P ON S.idnumber = P.idnumber 
WHERE P.payment1 = 0;