SAS：Proc Olap。非聚合聚合

Question

我想制作Rolap-cube。

在创建表之后，我使用宏生成在proc olap中编写Aggregation语句。

而且看到警告和错误是这样的：

WARNING: You cannot use NAME "DEFAULT" in the AGGREGATION statement for a non-NWAY aggregation. 
NOTE: The aggregation name "DEFAULT" was changed to "AGGR1". 

ERROR: An input data set was not specified. 

有什么不对？ （我不特定的数据集，因为我有表的大数目，我想在Rolap-cube使用）

增加： 如果我有这样的尺寸：

DIMENSION MyDim hierarchies=(First Second) 

HIERARCHY First 
    levels=(A B D) 
    DEFAULT 
    ; 
HIERARCHY Second 
    levels=(C D)  
    ; 

D是最小的水平，它有两个层次：D belond to B belong to A和D belong to C

如果我指定与水平汇总表：
1）A B D
2）A B
3）A
4）C D
5）C
6）none

然后SAS对我说，我不指定输入数据集。 （聚合表之一）。

但是这6个聚集涵盖所有可能的detalizations（没有交叉覆盖detalization像A B C D或A C D）

Answer 1

在PROC OLAP DATA=选项，你应该为立方体

1. 要么全非规范化的指定数据源表格/视图（星图模式事实和 尺寸表的连接）或
2. 只是事实表（您也可以参考它作为FACT=选项清除）。

在情况2中，还必须提供（通常是几个）包含参照维度表中DIMTBL=library.tablname选项DIMENSION ...;语句。从http://support.sas.com/documentation/cdl/en/olapug/59574/HTML/default/viewer.htm#a002605625.htm

> DATA | FACT=dsname 
> 
>  specifies the data source for the cube. The unsummarized data source can be any SAS data file, including files that are supported by 
> SAS/ACCESS software engines. If you load the cube from a star schema, 
> then the dsname is the name of the fact table that contains the 
> analysis variables from which to derive the measures for the cube. The 
> fact table must also contain fact keys that correspond to dimension 
> tables in the star schema. 
> 
>  You can also provide data set options along with DATA | FACT=. Options are stored within the cube and reapplied when the data is 
> accessed at run time. For more information, see "Data Set Options" in 
> SAS Language Reference: Concepts. 
> 
>  Note: This option is not required if you want to define the cube by using input data from a fully summarized external data source (a 
> crossing of all dimensions known as an NWAY). In that case, you 
> specify the data source for the cube by using the TABLE= option in the 
> AGGREGATION statement. [cautionend] 
>  Interaction: If you load the cube from a star schema, then you must use the DIMENSION statement to do the following: 
> 
>   specify the dimension table name (the DIMTBL= option) 
> 
>   specify the dimension (primary) key column (the DIMKEY= option) 
> 
>   specify the column (foreign key) in the fact table that corresponds to the dimension key column (the FACTKEY= option) 

编辑

摘录：

可以有多个层次结构的一个维。他们（他们的专栏）必须驻留在非规格化的基本表格或DIMENSION语句中DIMTBL=选项中引用的一个维表中。

因此，如果您使用星型模式构建多维数据集，则每个维度和一个事实表应该有一个表。 每个维度表应包含定义一个或多个层次结构所需的所有列。

莱斯的说，在你的情况下，尺寸MyDim被包含在库MyLib中表MyDim - 相关语句应该是：

DIMENSION MyDim hierarchies=(First Second) 
    DIMKEY=D 
    DIMTBL=MyLib.MyDim 
    ; 

HIERARCHY First 
    levels=(A B D) 
    DEFAULT 
    ; 
HIERARCHY Second 
    levels=(C D)  
    ;