Intra - Partioning Query

Question

Hi,
I'm trying to create an Intra Partioning Query but need a bit of help.
What i have so far is:
Select call_id,
Sum(decode(start_date_time (To_Date('12-JAN-2006', 'DD-MON-YYYY')), charge, NULL)) Charge12,
Sum(decode(start_date_time (To_Date('19-MAR-2006', 'DD-MON-YYYY')), charge, NULL)) Charge19,
Sum(decode(start_date_time (To_Date('12-JAN-2006', 'DD-MON-YYYY')), charge, NULL)) -
Sum(decode(start_date_time (To_Date('19-MAR-2006', 'DD-MON-YYYY')), charge, NULL)) diff
From phone_call
Group By call_id;
The error i'm getting is that it doesnot recognise "start_date_time.
I have checked the spelling and it matches up.
Appreciate any help
Thanks

Answer 1

you are missing Comms in decode after column
Select call_id,
Sum(decode(start_date_time  ,  (To_Date('12-JAN-2006', 'DD-MON-YYYY')), charge, NULL)) Charge12,
Sum(decode(start_date_time ,  (To_Date('19-MAR-2006', 'DD-MON-YYYY')), charge, NULL)) Charge19,
Sum(decode(start_date_time ,  (To_Date('12-JAN-2006', 'DD-MON-YYYY')), charge, NULL)) -
Sum(decode(start_date_time ,  (To_Date('19-MAR-2006', 'DD-MON-YYYY')), charge, NULL)) diff
From phone_call
Group By call_id;