Date functions in SQL/400

[Ravi <ravi@xxxxxxxxxxxxx>]

Hello,

I have a field in a file P(7,0) which contains dates in YYMMDD format. I
want to retrieve records from this file where the date is equal to the
current date.

I tried:
 select * from file where date_field = current date

I get the error "operands not compatible"

The I tried:

select * from file where date(datefield) = current date
No records were returned. I know there are valid records. 

So I checked the returned value:
select date(datefield) from file.

The result is a number of rows with '+++++++++', which means the data is
not valid. I looked up the manual and the date function can be used
against a +ve number < or = 3652059. 
Am I getting this error because the data type of the date field is
Packed? What are my other options to select records where date_field
equals current date? I will be running this statement in RPG/400 &
embedded SQL. Our system date format is MDY. Does this mean I cannot use
current date function to compare against dates in YYMMDD format? Can I
do soemthing to manipulate data? 

Any pointers will be appreciated...

Thanks in advance.

Ravi
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