Sql LOader- Mysql Migration to Oracle

Question

Hai all,
I am using Sql loader to migrate Mysql Database to Oracle 10g.
Almost all the migration is succesfully done but i have got stuck at one point. Since We know that in Mysql there is Null Date format is 0000:00:00 00:00 and when i am trying to load this date in oracle it says that cannot insert 0 in date.
Since In my mysql there is date combination of both regular dates and 0000:00:00 ..... so i want that what shoud i use in Sql*Loader that .When it seen the 0000:00:00 in date column it insert the date 1900:01:01 and when it sees the reglular date ..it simply insert in date .
Thanks and Regards!!
Pankaj

Answer 1

Hi,
The decode command I mwntioned means
if :date = 0000:00:00 00:00
then
to_date('1900:01:01','YYYY:MM:DD')
else
to_date( <give your date format> )
end
Change your command to
publishtodate "decode(:publishtodate, '0000:00:00 00:00', to_date('1900:01:01','YYYY:MM:DD'), to_date(:publishtodate,'YYYY/MM/DD' ) )"
The last bit (i.e. to_date(:publishtodate,'YYYY/MM/DD' ) ) is the else part, which will load the actual date data.
Here you have to give the format of dates of your MySql generated data.
Whats the format of date data? I guess, its not just YYYY/MM/DD, there must be time component (as the error text says).
If the dates are like "2007/05/21 23:45", then give the format "YYYY/MM/DD HH24:MI" or else follow your format.
Cheers