Table with count of records multifield

Dear all,
building my application, I'm in trouble with a particular selection in one of MyExpress SQL DB.
In particular I have a table made like below:

id | Code | Description | .... | T1 | T2 | .... |
1 AO234 XYZ a b
2 AB567 ABC b c
3 AO234 GFH a
4 FR456 JKL b b

Basically I need to perform a selection-count on the basis of the Code column to retrieve the following data table:

(example assuming to made the selection of Code AO234)

T | #
a 2
b 1

So far I have been able to make the selection on column T1 or T2, but I cannot make the join of the two.

Do you have any suggestion I could follow?

Thanks,
A.

One way would be to use a Union:

Code:

---

SELECT T, Sum(Num) as N
FROM (
  SELECT T1 as T, Count(T1) as Num
  FROM tableName
  WHERE Code = 'AO234'
  GROUP BY T1

  UNION ALL

  SELECT T2, Count(T2)
  FROM tableName
  WHERE Code = 'AO234'
  GROUP BY T2
  )
GROUP BY T

---

Note however that the need to do anything like this should make you question the table design, as it might be better to have a related table to contain the T1 and T2 values (with a link back to the id field of this table).