Question

I hace sql query through this i want to calculate the records after 05:00:00 PM and before
05:00:00 PM.Here i smy query but through this i am getting wrong results please any one check this if any logical error in this

Select trunc(gross_weight_date) date1,
count(*) before5 
from wbg.WBG_01_01
where to_char(gross_weight_date,'HH:MI:SS PM')>'05:00:00 PM'
and item_cod = 16
and trunc(gross_weight_date)='05-JAN-2012' 
group by trunc(gross_weight_date)
order by date1

Any help may apprecaited

Answer 1

You are using chars to compare dates. That won’t work properly.

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Since you only want to compare after 05 PM, here’s an easier solution:

Select trunc(gross_weight_date) date1,
count(*) before5 
from wbg.WBG_01_01
where to_number(to_char(gross_weight_date, 'HH24MISS')) > 150000
and item_cod = 16
and trunc(gross_weight_date)='05-JAN-2012' 
group by trunc(gross_weight_date)
order by date1

It passes the value of the date to a char (‘171212’) and then to a number (171212) and compares it to 150000.