sql - Transposing number from one column into another one where = 0 -


I'm my question is,

I work on which I have a query and I There are some values ​​that have 0 which is 0. I want to be able to take a price from last month which is not zero and it is placed in place of zero. Example See item below, sold stock, month, year, level HAVING (item = @ Aitem) year, by month 

  select items, stock, sell, level, month, year From   
 Enter image details here  
 Therefore, I want to take the number 2455 and invest it in the stock where it says 0, take the balance of the previous months to take stock levels of the current months. Is this also possible?  
  
 
 
 You used this question to create the last non zero level per item (for zero level items) can find:  
  SELECT find.item, find.month, find.year, Join Ajingdata results result.level (choose original. Atom, original. message origin. year maximum (artist (artist last. as Varchar) + + - (+ last. month as varchar) + '1' is Ajingdeta linked to the original as the time of day)) previous _dutt AgingData original.item last = Previous.it em and ((original.year & gt origin;. results). Result = find.item and cast (cast (result. year as Varchar) + '-' + cast (resulting as varchar) + '1' as datetime) = find.previous_date   
 this will work, even if the last non-zero level several months ago.

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