I do not have any problem with these previous links, I fixed all the problem with these in the past. They are working perfectly and gives the right result and I check the out put even manually, and I submitted that part.
the new requirement for the same file is to get the date from the fistr column just once because,if you check the L_05.csv you will find that all the date column are the same for aspecific date.
When you said you only getting 0 it is making me because In my runnin or debugging I am getting 10 the dd of the date column.
the L_05.csv I post is part from I big on, because it did not let me post the whole csv or even zip as it has a big file size. may be thats why you may be getting 0 result. I would like to post you the whole L_05.csv but I am not sure how.