SQL Server 2008 version of OVER(... Rows Unbounded Preceding) -


looking in converting sql server 2008 friendly can't work out. i've tried cross applies , inner joins (not saying did them right) no avail... suggestions?

what have table of stock , table of orders. , combine 2 show me pick once stock taken away (see previous question more details more details)

with advpick      (select 'a'                  placea,                 placeb,                 case                   when picktime = '00:00' '07:00'                   else isnull(picktime, '12:00')                 end                  picktime,                 cast(product int) product,                 prd_description,                 -qty                 qty            t_pick_orders          union          select 'a'               placea,                 placeb,                 '0',                 cast(code int) product,                 null,                 stock            t_pick_stock),      stock_post_order      (select *,                 sum(qty)                   on (                     partition placeb, product                     order picktime rows unbounded preceding ) new_qty            advpick) select *,        case          when new_qty > qty new_qty          else qty        end order_shortfall   stock_post_order  new_qty < 0 order  placeb,           picktime,           product

now whole sum on partition order sql server 2012+ have 2 servers run on 2008 , need converted...

expected results:

+--------+--------+----------+---------+-----------+-------+---------+-----------------+ | placea | placeb | picktime | product | prd_descr |  qty  | new_qty | order_shortfall | +--------+--------+----------+---------+-----------+-------+---------+-----------------+ | bw     | ames   | 16:00    |    1356 | product | -1330 |     -17 |             -17 | | bw     | ames   | 16:00    |      17 | product b |   -48 |     -42 |             -42 | | bw     | ames   | 17:00    |    1356 | product |  -840 |    -857 |            -840 | | bw     | ames   | 18:00    |    1356 | product |  -770 |   -1627 |            -770 | | bw     | ames   | 18:00    |      17 | product b |  -528 |    -570 |            -528 | | bw     | ames   | 19:00    |    1356 | product |  -700 |   -2327 |            -700 | | bw     | ames   | 20:00    |    1356 | product |  -910 |   -3237 |            -910 | | bw     | ames   | 20:00    |    8009 | product c |  -192 |     -52 |             -52 | | bw     | ames   | 20:00    |     897 | product d |   -90 |     -10 |             -10 | +--------+--------+----------+---------+-----------+-------+---------+-----------------+

one straight-forward way use correlated sub-query in cross apply.

if table more or less large, next question how make fast. index on placeb, product, picktime include (qty) should help. but, if table large, cursor better.

with advpick (     select 'a' placea,placeb, case when picktime = '00:00' '07:00' else isnull(picktime,'12:00') end picktime, cast(product int) product, prd_description, -qty qty t_pick_orders     union     select 'a' placea,placeb, '0', cast(code int) product, null, stock t_pick_stock ) ,stock_post_order (     select         *             advpick main         cross apply         (             select sum(sub.qty) new_qty             advpick sub                             sub.placeb = main.placeb                 , sub.product = main.product                 , t.picktime <= main.picktime         ) ) select     *,     case when new_qty > qty new_qty else qty end order_shortfall     stock_post_order     new_qty < 0 order placeb, picktime, product;

oh, , if (placeb, product, picktime) not unique, you'll different results original query sum() over. if need same results, need use column (like id) resolve ties.


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