ORA-01861: literal does not match format string

Hi Gurus,

I have a table WO as:

SQL> Desc WO
actstart    date
actfinish   date
estdur     float
wonum    varchar2(10)
....

In a package, I declare:

   type actstart_tab_type is table of date index by binary_integer;
   actstart_tab     actstart_tab_type;

What I want to do it calculate the ACTSTART(date) by using  ACTFINISH (date)  minus ESTDUR (h)
In one of the triggres:

BEGIN
     IF :new.status = 'COMP' THEN
....
      wo_act_time_pkg.actstart_tab(wo_act_time_pkg.actstart_tab.COUNT+1) :=
      to_date((:new.actfinish-:old.estdur/24),'dd-Mon-yy HHMI');  
     END IF;  
END;
/


and then in other:

UPDATE WO  SET ACTSTART= (wo_act_time_pkg.actstart_tab(i)
        where WONUM = wo_act_time_pkg.wo_tab(i);

I  got ORA-01861: literal does not match format string when the first trigger was fired. Tried with many TO_DATE format but could not solve problem. Oracle 8163

Please help.

Thanks
LVL 8
baonguyen1Asked:
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schwertnerCommented:
to_date((:new.actfinish-:old.estdur/24),'dd-Mon-yy HHMI') has no meaning. It is DATE!!!!


(:new.actfinish-:old.estdur/24)   - use this as date.

If you are curious about the value look at the result so:

to_char((:new.actfinish-:old.estdur/24),'dd-Mon-yy HHMI')

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baonguyen1Author Commented:
Thanks  schwertner. It was my big mistake.

It works now.

Cheers,
0
schwertnerCommented:
Thanks baonguyen1!
But why you grade the answer with B?
You got the truth, I am not guilty that you were surprised!
0
baonguyen1Author Commented:
I did not aware that I just grade with B. Can I have chance to reverse to A ?

Thanks a lot for your help and sorry for a B grade.

Cheers,

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