I have saved a date in my oracle db. (Pattern: dd.MM.yyyy) 
Now I have to check/compare by day and month, if today ss the same date or exactly 6 months after. But the year has to be ignored. For example. My date is 01.02.2001. Then it has to be "true" at the 01.02.2002. 

Also I need to check if the date + 6 months is true. (halfyearly). (For example 01.02.2002 --> 01.08.2002)

I tried with sysdate, but I'm a noob in sql.