rygat

SELECT address, 
       office, 
       t1.fio, 
       t2.counter, 
       CASE t2.counter
           WHEN 'counter1' THEN t1.counter1
           WHEN 'counter2' THEN t1.counter2
           WHEN 'counter3' THEN t1.counter3
           END value,
       t2.num,
       t1.date       
FROM table1 t1
JOIN table2 t2 USING (address, office)