Johnny liau chee on

icon company JJ FRESH mart icon location I maybe not schoolar ships.. But I got self confidence and got own thoughts... To make or do actions, Without needing to hear others opinions.. The son of G

Results 1 comments of Johnny liau chee on

access to previous/next row values

> I'd like a way to compute the difference between a value in a column with the previous or next value over a partition. I believe several SQL solutions use...