SSAS: Using DMV Queries to get Cube Metadata

时间：2015-05-08 17:55:41 阅读：242 评论：0 收藏：0 [点我收藏+]

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References

https://msdn.microsoft.com/en-us/library/ms126079.aspx

Schema Rowset1	Description
DISCOVER_INSTANCES Rowset	Describes the instances on the server.
DISCOVER_KEYWORDS Rowset (OLE DB for OLAP)	Enumerates a list of words reserved by the provider.
MDSCHEMA_ACTIONS Rowset	Describes the actions that may be available to the client application.
MDSCHEMA_CUBES Rowset	Describes the structure of cubes within a database.
MDSCHEMA_DIMENSIONS Rowset	Describes the shared and private dimensions within a database.
MDSCHEMA_FUNCTIONS Rowset	Describes the functions that are available to client applications connected to the database.
MDSCHEMA_HIERARCHIES Rowset	Describes each hierarchy that is contained in a particular dimension.
MDSCHEMA_INPUT_DATASOURCES Rowset	Describes the data sources defined within the database.
MDSCHEMA_KPIS Rowset	Describes the key performance indicators (KPIs) within a database.
MDSCHEMA_LEVELS Rowset	Describes each level within a particular hierarchy.
MDSCHEMA_MEASUREGROUP_DIMENSIONS Rowset	Enumerates the dimensions of measure groups.
MDSCHEMA_MEASUREGROUPS Rowset	Describes the measure groups within a database.
MDSCHEMA_MEASURES Rowset	Describes each measure within in a cube.
MDSCHEMA_MEMBERS Rowset	Describes the members within a database.
MDSCHEMA_PROPERTIES Rowset	Describes the properties of members within in a database.
MDSCHEMA_SETS Rowset	Describes any sets that are currently defined in a database, including session-scoped sets.

Articles posted by Benny Austin, check below URL for more details

https://bennyaustin.wordpress.com/2011/03/01/ssas-dmv-queries-cube-metadata/

--All Cubes in database
SELECT [CATALOG_NAME] AS [DATABASE],CUBE_CAPTION AS [CUBE/PERSPECTIVE],BASE_CUBE_NAME
FROM $system.MDSchema_Cubes
WHERE CUBE_SOURCE=1
 
--All dimensions in Cube
SELECT [CATALOG_NAME] as [DATABASE],
CUBE_NAME AS [CUBE],DIMENSION_CAPTION AS [DIMENSION]
 FROM $system.MDSchema_Dimensions
WHERE CUBE_NAME  =‘Adventure Works‘
AND DIMENSION_CAPTION <> ‘Measures‘
ORDER BY DIMENSION_CAPTION
 

--All Attributes
SELECT [CATALOG_NAME] as [DATABASE],
CUBE_NAME AS [CUBE],[DIMENSION_UNIQUE_NAME] AS [DIMENSION],
HIERARCHY_DISPLAY_FOLDER AS [FOLDER],HIERARCHY_CAPTION AS [DIMENSION ATTRIBUTE],
HIERARCHY_IS_VISIBLE AS [VISIBLE]
 FROM $system.MDSchema_hierarchies
WHERE CUBE_NAME  =‘Adventure Works‘
AND HIERARCHY_ORIGIN=2
ORDER BY [DIMENSION_UNIQUE_NAME]
 

--All Attributes with key and name columns
SELECT [CATALOG_NAME] as [DATABASE],
      CUBE_NAME AS [CUBE],[DIMENSION_UNIQUE_NAME] AS [DIMENSION],
      LEVEL_CAPTION AS [ATTRIBUTE],
      [LEVEL_NAME_SQL_COLUMN_NAME] AS [ATTRIBUTE_NAME_SQL_COLUMN_NAME],
      [LEVEL_KEY_SQL_COLUMN_NAME] AS [ATTRIBUTE_KEY_SQL_COLUMN_NAME]
FROM $system.MDSchema_levels
WHERE CUBE_NAME  =‘Adventure Works‘
AND level_origin=2
AND LEVEL_NAME <> ‘(All)‘
order by [DIMENSION_UNIQUE_NAME]
 

--All Hierarchies (user-defined)
SELECT [CATALOG_NAME] as [DATABASE],
CUBE_NAME AS [CUBE],[DIMENSION_UNIQUE_NAME] AS [DIMENSION],
HIERARCHY_DISPLAY_FOLDER AS [FOLDER],HIERARCHY_CAPTION AS [HIERARCHY],
HIERARCHY_IS_VISIBLE AS [VISIBLE]
 FROM $system.MDSchema_hierarchies
WHERE CUBE_NAME  =‘Adventure Works‘
and HIERARCHY_ORIGIN=1
ORDER BY [DIMENSION_UNIQUE_NAME]


--All Hierarchies (Parent-Child)
SELECT [CATALOG_NAME] as [DATABASE],
CUBE_NAME AS [CUBE],[DIMENSION_UNIQUE_NAME] AS [DIMENSION],
HIERARCHY_DISPLAY_FOLDER AS [FOLDER],HIERARCHY_CAPTION AS [HIERARCHY],
HIERARCHY_IS_VISIBLE AS [VISIBLE]
FROM $system.MDSchema_hierarchies
WHERE CUBE_NAME  =‘Adventure Works‘
AND HIERARCHY_ORIGIN=3
ORDER BY [DIMENSION_UNIQUE_NAME]
 


--All Levels of Hierarchies (user-defined)
SELECT [CATALOG_NAME] as [DATABASE],
    CUBE_NAME AS [CUBE],[DIMENSION_UNIQUE_NAME] AS [DIMENSION],
    [HIERARCHY_UNIQUE_NAME] AS [HIERARCHY],
    LEVEL_CAPTION AS [LEVEL],
    [LEVEL_NAME],
    [LEVEL_NUMBER] AS [LEVEL NUMBER],
    [LEVEL_NAME_SQL_COLUMN_NAME] AS [NAME_COLUMN],
    [LEVEL_UNIQUE_NAME_SQL_COLUMN_NAME] AS [UNIQUE_NAME_COLUMN],
    [LEVEL_KEY_SQL_COLUMN_NAME] AS [KEY_COLUMN]
 FROM $system.MDSchema_levels
 WHERE CUBE_NAME  =‘Adventure Works‘
 AND level_origin=1
 order by [DIMENSION_UNIQUE_NAME]
 


--All Levels of Hierarchies (Parent-Child)
SELECT [CATALOG_NAME] as [DATABASE],
    CUBE_NAME AS [CUBE],[DIMENSION_UNIQUE_NAME] AS [DIMENSION],
    [HIERARCHY_UNIQUE_NAME] AS [HIERARCHY],
    LEVEL_CAPTION AS [LEVEL],
    [LEVEL_NAME],
    [LEVEL_NUMBER] AS [LEVEL NUMBER],
    [LEVEL_NAME_SQL_COLUMN_NAME] AS [NAME_COLUMN],
    [LEVEL_UNIQUE_NAME_SQL_COLUMN_NAME] AS [UNIQUE_NAME_COLUMN],
    [LEVEL_KEY_SQL_COLUMN_NAME] AS [KEY_COLUMN]
 FROM $system.MDSchema_levels
 WHERE CUBE_NAME  =‘Adventure Works‘
 AND LEVEL_ORIGIN=3
 order by [DIMENSION_UNIQUE_NAME]
 


--All Measures
SELECT [CATALOG_NAME] as [DATABASE],
    CUBE_NAME AS [CUBE],[MEASUREGROUP_NAME] AS [FOLDER],[MEASURE_CAPTION] AS [MEASURE],
    [MEASURE_IS_VISIBLE]
FROM $SYSTEM.MDSCHEMA_MEASURES
 WHERE CUBE_NAME  =‘Adventure Works‘
 ORDER BY [MEASUREGROUP_NAME]
 


--Calculated Measures/Members
SELECT [MEMBER_UNIQUE_NAME] AS [CALCULATED_MEASURE],
    [MEMBER_CAPTION] AS [CAPTION],
    [EXPRESSION]
FROM $system.MDSCHEMA_MEMBERS
WHERE CUBE_NAME =‘Adventure Works‘
AND [MEMBER_TYPE]=4 --MDMEMBER_TYPE_FORMULA
 


--Dimension Usage/Fact-Dimension Bus Matrix
SELECT  [MEASUREGROUP_NAME] AS [MEASUREGROUP],
        [MEASUREGROUP_CARDINALITY],
        [DIMENSION_UNIQUE_NAME] AS [DIM],
        [DIMENSION_GRANULARITY] AS [DIM_KEY],
        [DIMENSION_CARDINALITY],
        [DIMENSION_IS_VISIBLE] AS [IS_VISIBLE],
        [DIMENSION_IS_FACT_DIMENSION] AS [IS_FACT_DIM]
FROM $system.MDSCHEMA_MEASUREGROUP_DIMENSIONS
WHERE [CUBE_NAME] =‘Adventure Works‘
    AND [MEASUREGROUP_NAME] =‘Internet Sales‘

DMV may not be able to report on partition count. Try AMO instead. The following AMO code will return partition count

using System;
using System.Text;
using Microsoft.AnalysisServices;

namespace AmoPartitionCount
{
class Program
{
static void Main(string[] args)
{
Server svr = new Server();
svr.Connect(“localhost”);

Database db =svr.Databases.FindByName(“AdventureWorks”);
Cube cbe = db.Cubes.FindByName(“Adventure Works”);

MeasureGroup mg = cbe.MeasureGroups.FindByName(“Internet Sales”);

int count =mg.Partitions.Count;
Console.WriteLine(count);

}
}
}

Articles posted by Alex Whittles

http://www.purplefrogsystems.com/blog/2010/09/olap-cube-documentation-in-ssrs-part-1/

We can even enhance it with DISTINCT and WHERE clauses, although they are more restricted than basic SQL. One of the main limitations is the lack of a JOIN operator. A number of the queries that I’ll perform below need to use JOIN, so to get around this I wrap up each query in an SQL OPENROWSET command, executed against a SQL database with a linked server to the cube. This enables me to perform JOINs using queries such as

SELECT *
FROM OPENQUERY(CubeLinkedServer,
   ‘SELECT *
    FROM $SYSTEM.MDSCHEMA_MEASUREGROUP_DIMENSIONS‘) mgd
INNER JOIN OPENQUERY(CubeLinkedServer,
   ‘SELECT *
    FROM $SYSTEM.MDSCHEMA_MEASUREGROUPS‘) mg
ON mgd.XXX = mg.XXX

etc.

I’m therefore going to create a number of stored procs to wrap up this functionality, the SSRS reports can then just call the procs.

Within BIDS, every item (cube, measure group, measure, dimension, attribute, hierarchy, KPI, etc.) has a description in the properties pane which is a multi-line free text property. These are exposed by the DMVs, so I’m going to make use of them and bring them out in the reports. This allows you to create the descriptions within BIDS as you’re developing the cube, meaning they’re version controlled and always in sync with the code.

I should also point out that I’m using SQL Server 2008 R2. All of the queries below will work with SQL 2008, but I want to use the spatial report functionality of SSRS 2008 R2 to generate dynamic star schema visualisations, which is only supported in R2.

In this post I’ll script out the stored procedures used as the basis of the documentation. In my next post I’ll put these into SSRS reports.

Lets get started.

Firstly we need to create our linked server. This script will create a linked server called CubeLinkedServer pointing to the Adventure Works DW 2008R2 OLAP database on the local server.

EXEC master.dbo.sp_addlinkedserver
   @server = N‘CubeLinkedServer‘,
   @srvproduct=N‘MSOLAP‘,
   @provider=N‘MSOLAP‘,
   @datasrc=N‘(local)‘,
   @catalog=N‘Adventure Works DW 2008R2‘

You’ll have to set up the security according to your requirements. So now lets start creating the source procs.

The first proc lists all of the cubes. The MDSCHEMA_CUBES DMV returns not only cubes, but also dimensions, I’m filtering it to only return cubes by specifying CUBE_SOURCE=1.

CREATE PROCEDURE [dbo].[upCubeDocCubes]
  (@Catalog       VARCHAR(255) = NULL
  )
AS
  SELECT *
  FROM OPENQUERY(CubeLinkedServer,
    ‘SELECT *
     FROM $SYSTEM.MDSCHEMA_CUBES
     WHERE CUBE_SOURCE = 1‘)
  WHERE CAST([CATALOG_NAME] AS VARCHAR(255)) = @Catalog
    OR @Catalog IS NULL
GO

The next proc returns all measure groups found within a specified cube.

CREATE PROCEDURE [dbo].[upCubeDocMeasureGroupsInCube]
  (@Catalog       VARCHAR(255)
  ,@Cube          VARCHAR(255)
  )
AS
  SELECT *
  FROM OPENQUERY(CubeLinkedServer,
    ‘SELECT *
     FROM $SYSTEM.MDSCHEMA_MEASUREGROUPS ‘)
  WHERE CAST([CATALOG_NAME] AS VARCHAR(255)) = @Catalog
    AND CAST([CUBE_NAME] AS VARCHAR(255))    = @Cube
GO

This next proc returns a list of measures within a specified measure group.

CREATE PROCEDURE [dbo].[upCubeDocMeasuresInMeasureGroup]
  (@Catalog       VARCHAR(255)
  ,@Cube          VARCHAR(255)
  ,@MeasureGroup  VARCHAR(255)
  )
AS
SELECT * FROM OPENQUERY(CubeLinkedServer,
  ‘SELECT *
   FROM $SYSTEM.MDSCHEMA_MEASURES
     WHERE [MEASURE_IS_VISIBLE]‘)
   WHERE CAST([CATALOG_NAME] AS VARCHAR(255))      = @Catalog
     AND CAST([CUBE_NAME] AS VARCHAR(255))         = @Cube
     AND CAST([MEASUREGROUP_NAME] AS VARCHAR(255)) = @MeasureGroup
GO

The following proc queries all dimensions available within a specified cube. I’m filtering using the DIMENSION_IS_VISIBLE column to only show visible dimensions.

CREATE PROCEDURE [dbo].[upCubeDocDimensionsInCube]
  (@Catalog       VARCHAR(255)
  ,@Cube          VARCHAR(255)
  )
AS
SELECT * FROM OPENQUERY(CubeLinkedServer,
  ‘SELECT *
   FROM $SYSTEM.MDSCHEMA_DIMENSIONS
     WHERE [DIMENSION_IS_VISIBLE]‘)
   WHERE CAST([CATALOG_NAME] AS VARCHAR(255)) = @Catalog
     AND CAST([CUBE_NAME] AS VARCHAR(255))    = @Cube
GO

Then we can query all available attributes within a dimension. This DMV returns a bitmask field (LEVEL_ORIGIN) which defines whether the attribute is a key, attribute or hierarchy. I’m using bitwise AND (&) to split this into three seperate fields for ease of use. I’m also filtering out invisible attributes, as well as those with a level of 0. Level 0 is the [All] member of any attribute, which we can ignore for this purpose.

CREATE PROCEDURE [dbo].[upCubeDocAttributesInDimension]
  (@Catalog       VARCHAR(255)
  ,@Cube          VARCHAR(255)
  ,@Dimension  VARCHAR(255)
  )
AS
  SELECT *
    , CASE WHEN CAST([LEVEL_ORIGIN] AS INT) & 1 = 1
        THEN 1 ELSE 0 END AS IsHierarchy
    , CASE WHEN CAST([LEVEL_ORIGIN] AS INT) & 2 = 2
        THEN 1 ELSE 0 END AS IsAttribute
    , CASE WHEN CAST([LEVEL_ORIGIN] AS INT) & 4 = 4
        THEN 1 ELSE 0 END AS IsKey
  FROM OPENQUERY(CubeLinkedServer,
    ‘SELECT *
     FROM $SYSTEM.MDSCHEMA_LEVELS
     WHERE [LEVEL_NUMBER]>0
       AND [LEVEL_IS_VISIBLE]‘)
  WHERE CAST([CATALOG_NAME] AS VARCHAR(255))          = @Catalog
    AND CAST([CUBE_NAME] AS VARCHAR(255))             = @Cube
    AND CAST([DIMENSION_UNIQUE_NAME] AS VARCHAR(255)) = @Dimension
GO

The next proc returns measure groups with their associated dimensions. We have to join two DMVs together in order to get the description columns of both the dimension and measure group.

CREATE PROCEDURE [dbo].[upCubeDocMeasureGroupsForDimension]
    (@Catalog       VARCHAR(255)
    ,@Cube          VARCHAR(255)
    ,@Dimension     VARCHAR(255)
    )
AS
  SELECT
    mgd.*
    , m.[DESCRIPTION]
  FROM OPENQUERY(CubeLinkedServer,
    ‘SELECT
       [CATALOG_NAME]
       , [CUBE_NAME]
       , [MEASUREGROUP_NAME]
       , [MEASUREGROUP_CARDINALITY]
       , [DIMENSION_UNIQUE_NAME]
     FROM $SYSTEM.MDSCHEMA_MEASUREGROUP_DIMENSIONS
       WHERE [DIMENSION_IS_VISIBLE]‘) mgd
   INNER JOIN OPENQUERY(CubeLinkedServer,
     ‘SELECT
       [CATALOG_NAME]
       ,[CUBE_NAME]
       ,[MEASUREGROUP_NAME]
       ,[DESCRIPTION]
     FROM $SYSTEM.MDSCHEMA_MEASUREGROUPS‘) mg
        ON  CAST(mgd.[CATALOG_NAME] AS VARCHAR(255))
           = CAST(mg.[CATALOG_NAME] AS VARCHAR(255))
        AND CAST(mgd.[CUBE_NAME] AS VARCHAR(255))
           = CAST(mg.[CUBE_NAME] AS VARCHAR(255))
        AND CAST(mgd.[MEASUREGROUP_NAME] AS VARCHAR(255))
           = CAST(mg.[MEASUREGROUP_NAME] AS VARCHAR(255))
  WHERE CAST(mgd.[CATALOG_NAME] AS VARCHAR(255))            = @Catalog
    AND CAST(mgd.[CUBE_NAME] AS VARCHAR(255))               = @Cube
    AND CAST(mgd.[DIMENSION_UNIQUE_NAME] AS VARCHAR(255))   = @Dimension
GO

The next proc is similar to the above, but the opposite way around. It returns all dimensions that are related to a measure group.

CREATE PROCEDURE [dbo].[upCubeDocDimensionsForMeasureGroup]
  (@Catalog       VARCHAR(255)
  ,@Cube          VARCHAR(255)
  ,@MeasureGroup  VARCHAR(255)
  )
AS
  SELECT
    mgd.*
    , d.[DESCRIPTION]
  FROM OPENQUERY(CubeLinkedServer,
    ‘SELECT
        [CATALOG_NAME]
       ,[CUBE_NAME]
       ,[MEASUREGROUP_NAME]
       ,[MEASUREGROUP_CARDINALITY]
       ,[DIMENSION_UNIQUE_NAME]
       ,[DIMENSION_CARDINALITY]
       ,[DIMENSION_IS_VISIBLE]
       ,[DIMENSION_IS_FACT_DIMENSION]
       ,[DIMENSION_GRANULARITY]
     FROM $SYSTEM.MDSCHEMA_MEASUREGROUP_DIMENSIONS
       WHERE [DIMENSION_IS_VISIBLE]‘) mgd
  INNER JOIN OPENQUERY(CubeLinkedServer,
    ‘SELECT
       [CATALOG_NAME]
       ,[CUBE_NAME]
       ,[DIMENSION_UNIQUE_NAME]
       ,[DESCRIPTION]
     FROM $SYSTEM.MDSCHEMA_DIMENSIONS
       WHERE [DIMENSION_IS_VISIBLE]‘) d
   ON  CAST(mgd.[CATALOG_NAME] AS VARCHAR(255))
       = CAST(d.[CATALOG_NAME] AS VARCHAR(255))
   AND CAST(mgd.[CUBE_NAME] AS VARCHAR(255))
       = CAST(d.[CUBE_NAME] AS VARCHAR(255))
   AND CAST(mgd.[DIMENSION_UNIQUE_NAME] AS VARCHAR(255))
       = CAST(d.[DIMENSION_UNIQUE_NAME] AS VARCHAR(255))
  WHERE  CAST(mgd.[CATALOG_NAME] AS VARCHAR(255))        = @Catalog
     AND CAST(mgd.[CUBE_NAME] AS VARCHAR(255))           = @Cube
     AND CAST(mgd.[MEASUREGROUP_NAME] AS VARCHAR(255))   = @MeasureGroup
GO

The next proc builds a BUS matrix, joining every dimension to its related measure groups. Later we’ll use the SSRS tablix control to pivot this into matrix form.

CREATE PROCEDURE [dbo].[upCubeDocBUSMatrix]
    (@Catalog       VARCHAR(255),
     @Cube          VARCHAR(255)
    )
AS
  SELECT
     bus.[CATALOG_NAME]
    ,bus.[CUBE_NAME]
    ,bus.[MEASUREGROUP_NAME]
    ,bus.[MEASUREGROUP_CARDINALITY]
    ,bus.[DIMENSION_UNIQUE_NAME]
    ,bus.[DIMENSION_CARDINALITY]
    ,bus.[DIMENSION_IS_FACT_DIMENSION]
    ,bus.[DIMENSION_GRANULARITY]
    ,dim.[DIMENSION_MASTER_NAME]
    ,1 AS Relationship
  FROM
    OPENQUERY(CubeLinkedServer,
      ‘SELECT
        [CATALOG_NAME]
        ,[CUBE_NAME]
        ,[MEASUREGROUP_NAME]
        ,[MEASUREGROUP_CARDINALITY]
        ,[DIMENSION_UNIQUE_NAME]
        ,[DIMENSION_CARDINALITY]
        ,[DIMENSION_IS_FACT_DIMENSION]
        ,[DIMENSION_GRANULARITY]
       FROM $SYSTEM.MDSCHEMA_MEASUREGROUP_DIMENSIONS
        WHERE [DIMENSION_IS_VISIBLE]‘) bus
    INNER JOIN OPENQUERY(CubeLinkedServer,
      ‘SELECT
        [CATALOG_NAME]
        ,[CUBE_NAME]
        ,[DIMENSION_UNIQUE_NAME]
        ,[DIMENSION_MASTER_NAME]
       FROM $SYSTEM.MDSCHEMA_DIMENSIONS‘) dim
    ON CAST(bus.[CATALOG_NAME] AS VARCHAR(255))
     = CAST(dim.[CATALOG_NAME] AS VARCHAR(255))
    AND CAST(bus.[CUBE_NAME] AS VARCHAR(255))
     = CAST(dim.[CUBE_NAME] AS VARCHAR(255))
    AND CAST(bus.[DIMENSION_UNIQUE_NAME] AS VARCHAR(255))
     = CAST(dim.[DIMENSION_UNIQUE_NAME] AS VARCHAR(255))
  WHERE  CAST(bus.[CATALOG_NAME] AS VARCHAR(255)) = @Catalog
     AND CAST(bus.[CUBE_NAME] AS VARCHAR(255)) = @Cube
GO

Next, in order to make it easier for users to find items within the cube, I’ve created a searching proc which will scour a number of the DMVs for anything containing the search term.

CREATE PROCEDURE [dbo].[upCubeDocSearch]
    (@Search        VARCHAR(255)
    ,@Catalog       VARCHAR(255)=NULL
    ,@Cube          VARCHAR(255)=NULL
    )
AS
  WITH MetaData AS
  (
   --Cubes
    SELECT CAST(‘Cube‘ AS VARCHAR(20))            AS [Type]
      , CAST(CATALOG_NAME AS VARCHAR(255))     AS [Catalog]
      , CAST(CUBE_NAME AS VARCHAR(255))           AS [Cube]
      , CAST(CUBE_NAME AS VARCHAR(255))           AS [Name]
      , CAST(DESCRIPTION AS VARCHAR(4000)) AS [Description]
      , CAST(CUBE_NAME AS VARCHAR(255))           AS [Link]
    FROM OPENQUERY(CubeLinkedServer,
      ‘SELECT [CATALOG_NAME], [CUBE_NAME], [DESCRIPTION]
       FROM $SYSTEM.MDSCHEMA_CUBES
       WHERE CUBE_SOURCE = 1‘)
    WHERE  (CAST([CATALOG_NAME] AS VARCHAR(255))
       = @Catalog OR @Catalog IS NULL)

    UNION ALL

   --Dimensions
    SELECT CAST(‘Dimension‘ AS VARCHAR(20))         AS [Type]
      , CAST(CATALOG_NAME AS VARCHAR(255))       AS [Catalog]
      , CAST(CUBE_NAME AS VARCHAR(255))             AS [Cube]
      , CAST(DIMENSION_NAME AS VARCHAR(255))        AS [Name]
      , CAST(DESCRIPTION AS VARCHAR(4000))   AS [Description]
      , CAST(DIMENSION_UNIQUE_NAME AS VARCHAR(255)) AS [Link]
    FROM OPENQUERY(CubeLinkedServer,
      ‘SELECT [CATALOG_NAME], [CUBE_NAME]
          , [DIMENSION_NAME], [DESCRIPTION]
          , [DIMENSION_UNIQUE_NAME]
       FROM $SYSTEM.MDSCHEMA_DIMENSIONS
         WHERE [DIMENSION_IS_VISIBLE]‘)
    WHERE  (CAST([CATALOG_NAME] AS VARCHAR(255))
        = @Catalog OR @Catalog IS NULL)
      AND (CAST([CUBE_NAME] AS VARCHAR(255))
        = @Cube OR @Cube IS NULL)
      AND LEFT(CAST(CUBE_NAME AS VARCHAR(255)),1)
        <>‘$‘ --Filter out dimensions not in a cube

    UNION ALL

   --Attributes
    SELECT CAST(‘Attribute‘ AS VARCHAR(20))         AS [Type]
      , CAST(CATALOG_NAME AS VARCHAR(255))       AS [Catalog]
      , CAST(CUBE_NAME AS VARCHAR(255))             AS [Cube]
      , CAST(LEVEL_CAPTION AS VARCHAR(255))         AS [Name]
      , CAST(DESCRIPTION AS VARCHAR(4000))   AS [Description]
      , CAST(DIMENSION_UNIQUE_NAME AS VARCHAR(255)) AS [Link]
    FROM OPENQUERY(CubeLinkedServer,
      ‘SELECT [CATALOG_NAME], [CUBE_NAME]
         , [LEVEL_CAPTION], [DESCRIPTION],
         , [DIMENSION_UNIQUE_NAME]
       FROM $SYSTEM.MDSCHEMA_LEVELS
       WHERE [LEVEL_NUMBER]>0
         AND [LEVEL_IS_VISIBLE]‘)
    WHERE  (CAST([CATALOG_NAME] AS VARCHAR(255))
         = @Catalog OR @Catalog IS NULL)
      AND (CAST([CUBE_NAME] AS VARCHAR(255))
         = @Cube OR @Cube IS NULL)
      AND LEFT(CAST(CUBE_NAME AS VARCHAR(255)),1)
         <>‘$‘ --Filter out dimensions not in a cube

    UNION ALL

   --Measure Groups
    SELECT CAST(‘Measure Group‘ AS VARCHAR(20))   AS [Type]
      , CAST(CATALOG_NAME AS VARCHAR(255))     AS [Catalog]
      , CAST(CUBE_NAME AS VARCHAR(255))           AS [Cube]
      , CAST(MEASUREGROUP_NAME AS VARCHAR(255))   AS [Name]
      , CAST(DESCRIPTION AS VARCHAR(4000)) AS [Description]
      , CAST(MEASUREGROUP_NAME AS VARCHAR(255))   AS [Link]
    FROM OPENQUERY(CubeLinkedServer,
       ‘SELECT [CATALOG_NAME], [CUBE_NAME]
          , [MEASUREGROUP_NAME],
          , [DESCRIPTION]
        FROM $SYSTEM.MDSCHEMA_MEASUREGROUPS‘)
    WHERE  (CAST([CATALOG_NAME] AS VARCHAR(255))
       = @Catalog OR @Catalog IS NULL)
     AND (CAST([CUBE_NAME] AS VARCHAR(255))
       = @Cube OR @Cube IS NULL)
     AND LEFT(CAST(CUBE_NAME AS VARCHAR(255)),1)
       <>‘$‘ --Filter out dimensions not in a cube

    UNION ALL

   --Measures
    SELECT CAST(‘Measure‘ AS VARCHAR(20))         AS [Type]
      , CAST(CATALOG_NAME AS VARCHAR(255))     AS [Catalog]
      , CAST(CUBE_NAME AS VARCHAR(255))           AS [Cube]
      , CAST(MEASURE_NAME AS VARCHAR(255))        AS [Name]
      , CAST(DESCRIPTION AS VARCHAR(4000)) AS [Description]
      , CAST(MEASUREGROUP_NAME AS VARCHAR(255))   AS [Link]
    FROM OPENQUERY(CubeLinkedServer,
      ‘SELECT [CATALOG_NAME], [CUBE_NAME]
         , [MEASURE_NAME], [DESCRIPTION],
         , [MEASUREGROUP_NAME]
       FROM $SYSTEM.MDSCHEMA_MEASURES
          WHERE [MEASURE_IS_VISIBLE]‘)
    WHERE  (CAST([CATALOG_NAME] AS VARCHAR(255))
          = @Catalog OR @Catalog IS NULL)
      AND (CAST([CUBE_NAME] AS VARCHAR(255))
          = @Cube OR @Cube IS NULL)
      AND LEFT(CAST(CUBE_NAME AS VARCHAR(255)),1)
          <>‘$‘ --Filter out dimensions not in a cube

    )
    SELECT *
    FROM MetaData
    WHERE @Search<>‘‘
        AND ([Name] LIKE ‘%‘ + @Search + ‘%‘
          OR [Description] LIKE ‘%‘ + @Search + ‘%‘
        )
GO

SSAS: Using DMV Queries to get Cube Metadata

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原文地址：http://www.cnblogs.com/hopecho/p/4488331.html

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