Get Report Data Sets

Applicability:

SQL Server 2000: Not Tested

SQL Server 2005: Tested

SQL Server 2008: Tested

SQL Server 2008R2: Tested

SQL Server 2012: Not Tested

Credits:

Author: Sorna Kumar Muthuraj

Date: 9 Jul 2011

Description

SP to retreive the data sets (including column and data types) for one or many reports.

The data sets are extracted directly from the XML for each report, so this means that the correct namespace must first be referenced.

This was originally coded for SQL Server 2012 and the namespace was hard-coded, but I have converted the query to dynamic SQL and extracted the namespace from the first report in the set of reports in scope.

Ideally I would have liked this query not to have a loop, but even though a manual changing of namespace reference worked with an unchanged set of attributes between 2012, 2008 and 2005, any reports created with a different namespace than the one declared would actually produce no results, and this could be misleading.

I would think that transferring reports upon upgrade would be quite common (I did one last year) and I'm fairly sure the namespace doesn't get upgraded, so I put in a loop to be safe.

Performance is a little sub-optimal, but the SP uses the NOLOCK hint, so there should be no interference with report operations.

NOTE: It is assumed that the Report Server Database has its default name of 'ReportServer'

Code

Stored Procedure:

DROP PROC usp_GetReportDataSets

GO

CREATE PROC usp_GetReportDataSets @ReportName NVARCHAR(850) = NULL

AS

/****************************************************

Purpose: To retreive the data sets for one or many reports.

Uses the Catalog table in the report server

database (assumed to be called by its default

name of 'ReportServer')

The report xml is directly parsed for the information, so a namepsace

ise required. In order to make this code more protable, the namespace

is also parsed from the report code.

If many reports are in scope, then only the namespace from

the first report (alphabetically) is used

Author: Sorna Kumar Muthuraj

History: 9 Jul 2011 - Initial Issue

25 Jul 2012 - transferred to stored procedure and added code to dynamically

discover the namespace. Added a loop to ensure that servers with reports

having mixed version reports will still return data.

7 Oct 2014 - ChillyDBA - added report path to returned results.

*****************************************************/

DECLARE

@Namespace NVARCHAR(500),

@SQL VARCHAR(MAX),

@ReportGUID VARCHAR(255)

CREATE TABLE #Results

(

ItemID INT IDENTITY(1,1),

ReportName VARCHAR(850),

ReportPath VARCHAR(850),

DataSetName VARCHAR(250),

DataSourceName VARCHAR(250),

CommandText VARCHAR(250),

Fields VARCHAR(250),

DataField VARCHAR(250),

DataType VARCHAR(250)

)

SELECT @ReportGUID = MIN(CAST(ItemID AS VARCHAR(255)))

FROM Reportserver.dbo.Catalog (NOLOCK)

WHERE Name LIKE '%' + ISNULL(@ReportName, '') + '%'

AND Name IS NOT NULL

AND TYPE = 2

WHILE @ReportGUID IS NOT NULL

BEGIN

SELECT

@SQL = '',

@Namespace = ''

SELECT @Namespace= SUBSTRING(x.CatContent, x.CIndex, CHARINDEX('"',x.CatContent,x.CIndex+7) - x.CIndex)

FROM

(

SELECT TOP 1 CatContent = CONVERT(NVARCHAR(MAX),CONVERT(XML,CONVERT(VARBINARY(MAX),C.Content)))

,CIndex = CHARINDEX('xmlns="',CONVERT(NVARCHAR(MAX),CONVERT(XML,CONVERT(VARBINARY(MAX),C.Content))))

FROM Reportserver.dbo.Catalog C (NOLOCK)

WHERE C.Content IS NOT NULL

AND C.TYPE = 2

AND C.ItemID = CAST(@ReportGUID AS UNIQUEIDENTIFIER)

ORDER BY C.name

) X

SELECT @Namespace = REPLACE(@Namespace,'xmlns="','') + ''

SELECT @SQL = 'WITH XMLNAMESPACES ( DEFAULT ''' + @Namespace + ''', ''http://schemas.microsoft.com/SQLServer/reporting/reportdesigner'' AS rd )

SELECT ReportName = name

,ReportPath = path

,DataSetName = x.value(''(@Name)[1]'', ''VARCHAR(250)'')

,DataSourceName = x.value(''(Query/DataSourceName)[1]'',''VARCHAR(250)'')

,CommandText = x.value(''(Query/CommandText)[1]'',''VARCHAR(250)'')

,Fields = df.value(''(@Name)[1]'',''VARCHAR(250)'')

,DataField = df.value(''(DataField)[1]'',''VARCHAR(250)'')

,DataType = df.value(''(rd:TypeName)[1]'',''VARCHAR(250)'')

FROM ( SELECT C.Name,C.path, CONVERT(XML,CONVERT(VARBINARY(MAX),C.Content)) AS reportXML

FROM ReportServer.dbo.Catalog C (NOLOCK)

WHERE C.Content is not null

AND C.Type = 2

AND C.ItemID = CAST(''' + @ReportGUID + ''' AS UNIQUEIDENTIFIER)

) a

CROSS APPLY reportXML.nodes(''/Report/DataSets/DataSet'') r ( x )

CROSS APPLY x.nodes(''Fields/Field'') f(df)

ORDER BY name '

INSERT #Results

(

ReportName,

ReportPath,

DataSetName,

DataSourceName,

CommandText,

Fields,

DataField,

DataType

)

EXEC(@SQL)