Dynamic Column name changes every year in where clause - tsql

Question

I'm trying to automate a TSQL select statement on a website. Each year the column names change with the number values at the end of the name increasing by 1 so instead of manually updating the site I'm trying to figure out how to include the dynamic column name in the where clause.
The data looks something like this.
+------+------+------+------+------+
| FY18 | FY19 | FY20 | FY21 | FY22 |
+------+------+------+------+------+
| 1 | 0 | 1 | 0 | 1 |
| 1 | 1 | 0 | 1 | 0 |
| 1 | 0 | 0 | 1 | 0 |
+------+------+------+------+------+
Here is what I've come up with so far... The select statement looks something like this
Select distinct
POS
from TBL_Staff
where [' 'FY'+right(year(dateadd(month,3,getdate()))-1,2) '] = 1
What I'm trying to figure it out is if there is a way to dynamically generate the date and get SQl to recognize name+date as a column
Note: This is fake data so please let me know if something isn't clear
Any help on this is most appreciated.

Answer 1

You could use dynamic SQL
DECLARE #sql NVARCHAR(MAX) = 'Select distinct
POS
from TBL_Staff
where FY' + CAST(right(year(dateadd(month,3,getdate()))-1,2) AS VARCHAR) + ' = 1'
exec sp_executesql #sql
#sql is a variable that is used to construct a SQL statement dynamically. Then the sp_executesql procedure executes it. Beware of using dynamic sql when other alternatives exist. It's harder to read, can be difficult to maintain, and can be a security issue if taking input from users and you're not careful to sanitize input parameters.