I am trying to create a new column based on date search result.

I have written a code in the link SQL fiddle as I am looking for date automation on each column based on the date format. the date format Coloum can be up to 7 column or less or more, just based on how many dates in the record.

SQL fiddle

Here is a screenshot as I would like to get this similar and the data is based on the number of sold SKU.