Creating New Table by select query with sequental column names - sql

Question

I have a table that contains column names like this;
+--------------------------------------------------------------------+-----------+
| BankTable | |
+--------------------------------------------------------------------+-----------+
| Id | BANK1 | BANK2 | BRANCH1 | BRANCH2 | IBAN1 | IBAN2 |
+----+-----------+-----------+-------------+-------------+-----------+-----------+
| 1 | BANK1_ID1 | BANK2_ID1 | BRANCH1_ID1 | BRANCH2_ID1 | IBAN1_ID1 | IBAN2_ID1 |
+----+-----------+-----------+-------------+-------------+-----------+-----------+
| 2 | BANK1_ID2 | BANK2_ID2 | BRANCH1_ID2 | BRANCH1_ID2 | IBAN1_ID2 | IBAN2_ID2 |
+----+-----------+-----------+-------------+-------------+-----------+-----------+
How can i write a query that returns the result like this;
+------------------------------------------+
| BANK |
+------------------------------------------+
| ID | BANK | BRANCH | IBAN |
+----+-----------+-------------+-----------+
| 1 | BANK1_ID1 | BRANCH1_ID1 | IBAN1_ID1 |
+----+-----------+-------------+-----------+
| 2 | BANK2_ID2 | BRANCH1_ID2 | IBAN2_ID2 |
+----+-----------+-------------+-----------+
P.s: I am writing select query by Id column. BTW query result contains one row every time.
Any help appreciated.
SOLUTION
I don't know if it's good approach but i solved this by based on #Giorgos Betsos answer. Here is how i fixed this problem.
SELECT BANK, BRANCH, IBAN
FROM (
SELECT BANK1, BANK2, BRANCH1, BRANCH2, IBAN1, IBAN2
FROM BankTable
WHERE ID = your_id_here
) AS src
UNPIVOT (
BANK FOR Col IN(BANK1, BANK2)
) AS unpvt1
UNPIVOT (
BRANCH FOR Col1 IN(BRANCH1, BRANCH2)
) AS unpvt2
UNPIVOT (
IBAN FOR Col2 IN(IBAN1, IBAN2)
) AS unpvt3
WHERE RIGHT(Col, 1) = RIGHT(Col1, 1)
AND RIGHT(Col, 1) = RIGHT(Col2, 1)

Answer 1

You can use UNPIVOT for this:
SELECT Bank
FROM (
SELECT Id, BANK1, BANK2, BANK3, BANK4, BANK5
FROM BankTable
WHERE id = 1) AS src
UNPIVOT (
Bank FOR Col IN([BANK1], [BANK2], [BANK3], [BANK4], [BANK5])) AS unpvt
Demo here

Answer 2

If number of column is more, then you can use a dynamic sql query as below:
Query
declare #sql as varchar(max);
select #sql =stuff(
(select 'union all select [' + column_name + '] as Bank
from BankTable where Id = 1 '
from information_schema.columns
where table_name = 'BankTable'
and column_name like 'BANK[0-9]%'
for xml path('')), 1, 9, '');
execute(#sql);
Result
+-----------+
| Bank |
+-----------+
| BANK1_ID1 |
| BANK2_ID1 |
| BANK3_ID1 |
| BANK4_ID1 |
| BANK5_ID1 |
+-----------+