Can’t Believe I Didn’t Know This One

I’m endlessly frustrated by working with date and datetime types in T-SQL and PL/SQL, so I often end up complicating myself into a corner working with them. 

I’m running the risk of another “duh” comment by posting something so simple, but the syntax in T-SQL and PL/SQL to get the date of a year, or any number of days from today’s date is just:

T-SQL:  SELECT GETDATE() - 365;

PL/SQL: SELECT TO_DATE(CURRENT_DATE) - 365 FROM DUAL