While testing my answer to SQL - Getting data from first and last row of each group I noticed something strange. The first_value and last_value window functions appear to behave differently. As ...
I've got a timeserie table. Each datapoint has also a statut field which indicates its providing source. I'd like to request last available datapoint as of date T but there could be several results, ...
I have a table which includes a column of decimal values, such as this: id value size -- ----- ---- 1 100 .02 2 99 .38 3 98 .13 4 97 .35 5 96 .15 6 95 .57 7 94 .25 ...
I need some help with windowing functions. I know you can calculate the sum within a window and the running total within a window. But is it possible to calculate the previous running total i.e. the ...
I have a stored procedure will be used to page through data. One of the requirements of the procedure is to have a parameter that will be used to sort two columns of data, the sorting should be used ...