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--q99.sql--

 select
    substr(w_warehouse_name,1,20), sm_type, cc_name
   ,sum(case when (cs_ship_date_sk - cs_sold_date_sk <= 30 ) then 1 else 0 end)  as `30 days`
   ,sum(case when (cs_ship_date_sk - cs_sold_date_sk > 30) and
                  (cs_ship_date_sk - cs_sold_date_sk <= 60) then 1 else 0 end )  as `31-60 days`
   ,sum(case when (cs_ship_date_sk - cs_sold_date_sk > 60) and
                  (cs_ship_date_sk - cs_sold_date_sk <= 90) then 1 else 0 end)  as `61-90 days`
   ,sum(case when (cs_ship_date_sk - cs_sold_date_sk > 90) and
                  (cs_ship_date_sk - cs_sold_date_sk <= 120) then 1 else 0 end)  as `91-120 days`
   ,sum(case when (cs_ship_date_sk - cs_sold_date_sk  > 120) then 1 else 0 end)  as `>120 days`
 from
    catalog_sales, warehouse, ship_mode, call_center, date_dim
 where
     d_month_seq between 1200 and 1200 + 11
 and cs_ship_date_sk   = d_date_sk
 and cs_warehouse_sk   = w_warehouse_sk
 and cs_ship_mode_sk   = sm_ship_mode_sk
 and cs_call_center_sk = cc_call_center_sk
 group by
    substr(w_warehouse_name,1,20), sm_type, cc_name
 order by substr(w_warehouse_name,1,20), sm_type, cc_name
 limit 100
            
