No accumulatedcost if you need more than one type media supported.
没有积累的成本,如果您需要一种以上的媒体支持。
2
The actual unit cost for any item at any time is obtained by dividing the accumulated costs charged to that item by the accumulated units of work performed.
任何时间任何项目标现实单位造价为谁人项目所耗费的累计费用除以谁人项目标累计单位数量。
3
If there are no growing cost SQL queries in the snapshot, analyze the access plan to see which can be amended based on the accumulated data.