SQL Query Discover

Question

I have this query that I need to modify
              set nocount on
              create table #tempCI
              CI_ID int,
              ResourceID int,
              -- CI name in unicode
              ConfigurationItemName nvarchar(512),
              --machine name in unicode sent by the client
              Netbios_Name0 nvarchar(255)
              insert into #tempCI
              select
              detail.CI_ID,
              detail.ResourceID,
              isnull(isnull(siteLocCI.LocValue, ComplianceStatusDetails.value('(/BaselineCIComplianceState/CIProperties/LocalizableText[@PropertyName="CIName"])[1]/./text()[1]', 'nvarchar(512)')),locci.DisplayName)
as ConfigurationItemName,
              isnull(detail.ComplianceStatusDetails.value('(/BaselineCIComplianceState/@ComputerName)[1]', 'nvarchar(255)'),sys.Netbios_Name0) as MachineName
              from v_CICurrentComplianceStatus detail
              join v_BaselineTargetedComputers tar on detail.CI_ID=tar.CI_ID and detail.ResourceID=tar.ResourceID
              inner join v_R_System sys on sys.ResourceID=detail.ResourceID
              left join v_LocalizedCIProperties_SiteLoc locci on locci.CI_ID=detail.CI_ID -- display name for the base class
              left join
              (select
              ModelName,
              SDMPackageVersion,
              T.X.value('../@name', 'nvarchar(256)') as RID,
              T.X.value('./text()[1]', 'nvarchar(512)') as LocValue
              from v_SDMLocalizedData_SiteLoc
              cross apply LocalizedData.nodes('/root/data/value/.') T(X) ) siteLocCI
              on siteLocCI.ModelName=detail.ModelName and siteLocCI.SDMPackageVersion=detail.SDMPackageVersion
              and detail.ComplianceStatusDetails.value('(/BaselineCIComplianceState/CIProperties/LocalizableText[@PropertyName="CIName"]/@RID)[1]', 'nvarchar(255)')=siteLocCI.RID
              where sys.Netbios_Name0 = @computer
              and (ComplianceStatusDetails.value('(/BaselineCIComplianceState/CIProperties/LocalizableText[@PropertyName="CIName"])[1]/./text()[1]', 'nvarchar(512)') = @ciname
              or locci.DisplayName = @ciname)
              and (detail.SDMPackageVersion = @optsdmversion or @optsdmversion='')
              select
              Netbios_Name0 as MachineName,
              ConfigurationItemName as BaselineName,
              temp.SDMPackageVersion as BaselineContentVersion,
              err.Description as SDMViolationDescription,
              SDMViolationSeverity,
              count(1) as SDMViolationCount
              from (
              select
              status.CI_ID,
              status.SDMPackageVersion,
              #tempCI.Netbios_Name0,
              #tempCI.ConfigurationItemName,
              Model.X.value('./@Category', 'nvarchar(64)') as SDMViolationCategory,
              Model.X.value('./@Severity', 'nvarchar(64)') as SDMViolationSeverity
              from v_CICurrentComplianceStatus status with (NOLOCK)
              inner join #tempCI on #tempCI.CI_ID=status.CI_ID and #tempCI.ResourceID=status.ResourceID
              cross apply ComplianceStatusDetails.nodes('/*/ModelViolations/ModelViolation') as Model(X)
              union all
              select
              status.CI_ID,
              status.SDMPackageVersion,
              #tempCI.Netbios_Name0,
              #tempCI.ConfigurationItemName,
              Discover.X.value('./@Category', 'nvarchar(64)') as SDMViolationCategory,
              Discover.X.value('./@Severity', 'nvarchar(64)') as SDMViolationSeverity
              from v_CICurrentComplianceStatus status with (NOLOCK)
              inner join #tempCI on #tempCI.CI_ID=status.CI_ID and #tempCI.ResourceID=status.ResourceID
              cross apply ComplianceStatusDetails.nodes('/*/DiscoveryViolations/DiscoveryViolation') as Discover(X)
              ) temp
              inner join v_ConfigurationItems ci on ci.CI_ID=temp.CI_ID
              inner join v_CITypes ct on ci.CIType_ID=ct.CIType_ID
              inner join v_SDMErrorCategories err on err.Category=temp.SDMViolationCategory
              group by Netbios_Name0, ct.TypeName, ConfigurationItemName, temp.SDMPackageVersion, Description, SDMViolationSeverity, InfoURL
              union all
              select
              tmp.Netbios_Name0 as MachineName,
              tmp.ConfigurationItemName as BaselineName,
              status.SDMPackageVersion as BaselineContentVersion,
              info.MessageName as SDMViolationDescription,
              cssev.Description as SDMViolationSeverity,
              count(1) as SDMViolationCount
              from v_CICurrentComplianceStatus status with (NOLOCK)
              inner join #tempCI tmp on (tmp.CI_ID=status.CI_ID and tmp.ResourceID=status.ResourceID and status.ComplianceState=4)
              inner join v_ConfigurationItems ci on ci.CI_ID=status.CI_ID
              inner join v_CITypes ct on ci.CIType_ID=ct.CIType_ID
              inner join v_CIValidationSeverity cssev on cssev.Severity=status.MaxNoncomplianceCriticality
              left join v_DCMClientStatusInformation info on info.MessageID=status.LastComplianceErrorID
              where
              (ComplianceStatusDetails is null or
              (ComplianceStatusDetails.value('count(/*/DiscoveryViolations/DiscoveryViolation)','int') = 0
              and ComplianceStatusDetails.value('count(/*/ModelViolations/ModelViolation)','int') = 0)
              group by tmp.Netbios_Name0, ct.TypeName, tmp.ConfigurationItemName, status.SDMPackageVersion, info.MessageName, cssev.Description
              drop table #tempCI
Model.X.value('./@Category', 'nvarchar(64)') as SDMViolationCategory  --> what is the purpose of this command
Discover.X.value('./@Category', 'nvarchar(64)') as SDMViolationCategory --> what is the purpose of this command

Answer 1

>>Model.X.value('./@Category', 'nvarchar(64)') as SDMViolationCategory 
--> what is the purpose of this command
It gets the value of the attribute Category from the xml node
Consider this xml
<email>
<account language="en" />
</email>
This will retrieve the value of attribute language i.e. En from the node account                                    
select @xml.value('(/email/account/@language)[1]', 'nvarchar(max)')
from this link
http://stackoverflow.com/questions/8808652/sql-how-can-i-get-the-value-of-an-attribute-in-xml-datatype
declare @xml xml =
'<email>
<account language="en" />
</email>'
select @xml.value('(/email/account/@language)[1]', 'nvarchar(max)')
Satheesh
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