ssas - 内部查询最大日期过滤器的 MDX

Question

我需要根据以下 SQL 为 PerformancePoint 报告创建 MDX 查询，有什么想法吗？指针？

SELECT count(*), sum(balance) FROM SerialBalance b  
WHERE  balance > 0 
AND EffectiveDate = (   Select  Max(EffectiveDate) 
            From    SerialBalance sb 
            Where   SB.Subhead  = b.Subhead
            and SB.SerialNumber = b.SerialNumber 
            and SB.Branch   = b.Branch 
            and SB.Zone     = b.Zone
            and SB.Country  = b.Country
            and SB.EffectiveDate <= '2013-05-31'
            )