Question

MDX查询查找员工薪水超过5000

select 
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } on columns,
NON EMPTY 
    {
     (
      [Department].[All Department],
      [Position].[All Position],
      [Employee].[All Employee])
    } on rows
from Salary
where 
      [Measures].[Total Salary]>5000

我的架构

<Schema name="Foodmart">
  <Cube name="Salary" visible="true" cache="true" enabled="true">
    <Table name="employee" alias="">
    </Table>
    <Dimension type="StandardDimension" visible="true" foreignKey="department_id" name="Department">
      <Hierarchy name="All Department" visible="true" hasAll="true" allMemberName="All Department" primaryKey="department_id" primaryKeyTable="department">
        <Table name="department">
        </Table>
        <Level name="Dept" visible="true" column="department_description" uniqueMembers="true">
        </Level>
      </Hierarchy>
    </Dimension>
    <Dimension type="StandardDimension" visible="true" foreignKey="position_id" name="Position">
      <Hierarchy name="All Position" visible="false" hasAll="true" allMemberName="All Position" primaryKey="position_id" primaryKeyTable="position">
        <Table name="position">
        </Table>
        <Level name="position" visible="true" table="position" column="position_title" uniqueMembers="false">
        </Level>
      </Hierarchy>
    </Dimension>
    <Dimension type="StandardDimension" visible="true" name="Employee">
      <Hierarchy name="All Employee" visible="true" hasAll="true" allMemberName="All Employee">
        <Table name="employee" alias="">
        </Table>
        <Level name="New Level 0" visible="true" column="full_name" uniqueMembers="false">
        </Level>
      </Hierarchy>
    </Dimension>
    <Measure name="Total Salary" column="salary" aggregator="sum" visible="true">
    </Measure>
    <Measure name="Total Employee" column="employee_id" aggregator="distinct-count" visible="true">
    </Measure>
  </Cube>
</Schema>

Answer 1

我知道如果您来自slq它看起来不错，但以下是错误的：

WHERE
      [Measures].[Total Salary]>5000

您可以在SELECT子句中使用过滤器功能：

SELECT
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } ON COLUMNS,
NON EMPTY 
    {
     (
      [Department].[All Department],
      [Position].[All Position]
     )
    } ON ROWS
FROM [Salary]
WHERE FILTER(
        [Employee].[All Employee].CHILDREN,
        [Measures].[Total Salary]>5000
      );

以上将过滤员工总薪资大于5000的员工。

如果您喜欢以下内容，过滤器可以绕过整个交叉集，但您将获得返回的所有相应员工的列表：

SELECT
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } ON COLUMNS,
NON EMPTY 
    FILTER(
     {
      (
       [Department].[All Department],
       [Position].[All Position],
       [Employee].[All Employee].CHILDREN
      )
     }
    ,[Measures].[Total Salary]>5000
   ) ON ROWS
FROM [Salary];

或者在整个集合中使用HAVING子句 - 虽然这在逻辑上与上述不同：

SELECT
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } ON COLUMNS,
NON EMPTY 
       [Department].[All Department]
     * [Position].[All Position],
     * [Employee].[All Employee].CHILDREN
   HAVING [Measures].[Total Salary]>5000 ON ROWS
FROM [Salary];

编辑

如果仍然需要ROWS上的[All EmplyeeS]成员，您可以将过滤器移动到子多维数据集：

SELECT
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } ON COLUMNS,
NON EMPTY 
      [Department].[All Department]
     *[Position].[All Position]
     *[Employee].[All Employee]
    ON ROWS
FROM 
(
SELECT
    FILTER(
        [Employee].[All Employee].CHILDREN,
        [Measures].[Total Salary]>5000
      ) ON 0
FROM [Salary] 
);

Answer 2

我猜你遇到了空间/内存问题。如果是这样，您可以尝试以下代码：

select 
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } on columns,
NON EMPTY 
    {
     NonEmpty(
              (
               [Department].[All Department] *
               [Position].[All Position] *
               [Employee].[All Employee]
              )
              ,[Measures].[Total Salary]
             )
    } having [Measures].[Total Salary] > 5000 on rows
from Salary

NonEmpty函数将在交叉连接时删除空元组。

编辑1 现在怎么样？

with member [Measures].SalGrtrThan5000 
as
IIF
  (
   [Measures].[Total Salary] > 5000, 
   1, 
   NULL
  )

select 
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } on columns,
NON EMPTY 
    {
     NonEmpty(
              (
               [Department].[All Department] *
               [Position].[All Position] *
               [Employee].[All Employee]
              )
              ,[Measures].SalGrtrThan5000 
             )
    } 
      on rows
from Salary

编辑，使用EXISTS

select 
    {
      [Measures].[Total Employee],
      [Measures].[Total Salary]
    } on columns,
NON EMPTY 
    {
     FILTER
        (
            EXISTS (
                      (
                       [Department].[All Department] *
                       [Position].[All Position] *
                       [Employee].[All Employee]
                      )
              , , "SomeMeasureGroup"
                   ) //EXISTS will remove non-empty tuples this way
        , [Measures].[Total Salary] > 5000
        )//Filters the set
    } 
      on rows
from Salary

将“SomeMeasureGroup”替换为[Measures].[Total Salary]所属的度量值组的实际名称。有一个逐个单元格的过滤器，但使用EXISTS，希望这次会更快。

在蒙德里安的条件

2 个答案: