Question

Some of the dates in a date column have an incorrect year. How do I change the first two digits of the year?

For example:

select 
ID,
to_char(END_DT,'yyyy-mm-dd hh:mi:ss') as dt
From DB

Would result:

ID   dt
1    0207-08-10 12:00:00
2    0208-03-31 12:00:00
3    0200-11-10 12:00:00

I want the results to look like this:

ID   dt
1    2007-08-10 12:00:00
2    2008-03-31 12:00:00
3    2000-11-10 12:00:00

Answer 1

If you just want to “get” the correct date, you can use something like

select 
  substr(to_char(END_DT,'yyyy'),2,1) ||
  substr(to_char(END_DT,'yyyy'),1,1) || 
  substr(to_char(END_DT,'yyyy'),3,2) ||'-'||
  to_char(END_DT,'mm-dd hh:mi:ss')
  as dt
From DB;