请教一个sql统计的问题

 以上是建立测试数据，大致需求是：有一张表记录了公司各个部门的快递使用费用，现在要统计每个部门的快递费用使用情况，需要得出结果如下的一张表，
请教一下各位大神这个sql语句应该怎么写

                                                  SQL                                              
[解决办法]

select dep,depid,
sum(case when company ='DHL' then cost else 0 end)DHL,
sum(case when company ='EMS' then cost else 0 end)EMS,
sum(case when company ='TNT' then cost else 0 end)TNT,
sum(case when company ='SF' then cost else 0 end)SF,
sum(cost)cost
FROM #test group by dep,depid

[解决办法]
DECLARE @s NVARCHAR(4000)
SET @s = ''
SELECT  @s = @s + ',' + QUOTENAME([company]) + '=max(case when [company]='
        + QUOTENAME([company], '''') + ' then [cost] else 0 end)'
FROM    #test
GROUP BY [company]
EXEC('select dep,depid'+@s+' from #test group by dep,depid')