Question

我需要汇总dax表并按从上一个EffectiveDate起5个月的日期范围对其进行过滤，该日期为2019年7月27日

所以我的dax表达式：

TestTable1 = 
VAR LastEffDate = LASTDATE(fact_Premium[EffectiveDate])  // --  7/27/2019
RETURN 
SUMMARIZE(
      FILTER(dim_Date, DATEDIFF(DATEADD(STARTOFMONTH(LastEffDate), -5,MONTH), ENDOFMONTH(LastEffDate), MONTH)),
      dim_Date[Year Month],
       "Premium", [Ttl WP]
       )

但是由于某种原因，它为我带来了数据集中所有年份的数据：

我也尝试过：

TestTable1 = 
    VAR LastEffDate = LASTDATE(fact_Premium[EffectiveDate])  // --  7/27/2019
RETURN 
    SUMMARIZE (
        FILTER (
             dim_Date, 
             DATESBETWEEN(dim_Date[Date],
                 DATE(2019,5,1),               
                 DATE(2019,6,1)
             )
        ),
        dim_Date[Year Month],
        "Premium", [Ttl WP]
    )

但这给我一个错误：

A table of multiple values was supplied where a single value was expected.

我在这里想念东西吗？

Answer 1

您的过滤器表达式应使用DATESBETWEEN而不是datediff：

TestTable1 = 
    VAR LastEffDate = LASTDATE(fact_Premium[EffectiveDate])  // --  7/27/2019
RETURN 
    SUMMARIZE (
        FILTER (
             dim_Date, 
             DATESBETWEEN(
                 //expression for start date, 
                 //expression for end date
             )
        ),
        dim_Date[Year Month],
        "Premium", [Ttl WP]
    )

Answer 2

我认为您仍然缺少汇总保费的信息，

SUM（Ttl WP）

TestTable1 =
VAR LastEffDate =
    LASTDATE ( fact_Premium[EffectiveDate] ) // --  7/27/2019
RETURN
    SUMMARIZE (
        FILTER (
            dim_Date,
            DATESBETWEEN ( dim_Date[Date], DATE ( 2019, 5, 1 ), DATE ( 2019, 6, 1 ) )
        ),
        dim_Date[Year Month],
        "Premium", SUM ( [Ttl WP] ) ---- Need to aggregate here
    )

如何按日期将数据汇总到表过滤中

2 个答案: