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USQL: Problems Querying External Table from Azure SQL DB

    Question

  • I have a table in Azure SQL DB with the following schema:

    [rel].[TABLE1NAME](
        [FSCServiceRequestId] [int] IDENTITY(1,1) NOT NULL,
        [ServiceRequestCRMId] [uniqueidentifier] NOT NULL,
        [TicketNumberTitle] [nvarchar](100) NOT NULL,
        [ProblemDescription] [nvarchar](max) NULL,
        [FSCServiceRequestStatusId] [int] NOT NULL,
        [FSCServiceRequestPriorityId] [int] NOT NULL,
        [PriorityOverrideReason] [nvarchar](1000) NULL,
        [RequestorPhoneNumber] [nvarchar](100) NULL,
        [FSCProblemRoomNumber] [varchar](200) NULL,
        [BuildingId] [int] NULL,
        [FSCProblemClassId] [int] NOT NULL,
        [FSCProblemTypeId] [int] NOT NULL,
        [ReclassificationReason] [nvarchar](100) NULL,
        [RequestCancellationReason] [nvarchar](2000) NULL,
        [IsCancelledForReclassification] [bit] NULL,
        [IsSurveyServiceRequest] [bit] NULL,
        [ProblemOccurredUTCDate] [datetime] NULL,
        [ProblemOccurredUTCYMD] [int] NULL,
        [ProblemOccurredInBuildingTimeZoneDate] [datetime] NULL,
        [CreationUTCDate] [datetime] NOT NULL,
        [CreationUTCYMD] [int] NOT NULL,
        [SubmittedUTCDate] [datetime] NULL,
        [SubmittedInBuildingTimeZoneDate] [datetime] NULL,
        [DueUTCDate] [datetime] NULL,
        [DueUTCYMD] [int] NULL,
        [DueInBuildingTimeZoneDate] [datetime] NULL,
        [RequestedFutureDueUTCDate] [datetime] NULL,
        [ProviderAdjustedDueInBuildingTimeZoneDate] [datetime] NULL,
        [ProviderAdjustedDueInBuildingTimeZoneYMD] [int] NULL,
        [Tier1WorkCompletionByBuildingTimeZoneDate] [datetime] NULL,
        [Tier1WorkCompletionByBuildingTimeZoneYMD] [int] NULL,
        [ModifiedUTCDate] [datetime] NULL,
        [ModifiedByPersonnelId] [int] NULL,
        [CompletionUTCDate] [datetime] NULL,
        [CompletionUTCYMD] [int] NULL,
        [CompletionInBuildingTimeZoneDate] [datetime] NULL,
        [IsActivityComplete] [bit] NOT NULL,
        [IsSLAMet] [bit] NULL,
        [OwningTeamName] [varchar](255) NULL,
        [CostCenterCode] [varchar](40) NULL,
        [CaseOriginType] [nvarchar](100) NOT NULL,
        [DeviceType] [nvarchar](100) NOT NULL,
        [FSCProviderAccountId] [int] NOT NULL,
        [CreatedFromSystemCode] [nvarchar](100) NULL,
        [RequestorPersonnelId] [int] NOT NULL,
        [RequestorEmailAlias] [varchar](30) NOT NULL,
        [RequestorFullName] [varchar](100) NULL,
        [RequestorIsSuperUser] [bit] NULL,
        [RequestorIsProviderUser] [bit] NOT NULL,
        [RequestorHeadCountTypeGroupDesc] [varchar](30) NOT NULL,
        [RequestorCSCompanyAgencyName] [varchar](30) NOT NULL,
        [RequestorProfitCenterCode] [char](10) NOT NULL,
        [RequestorCostCenterCode] [char](10) NOT NULL,
        [ContactPersonnelId] [int] NOT NULL,
        [ContactEmailAlias] [varchar](30) NOT NULL,
        [ContactFullName] [varchar](100) NOT NULL,
        [ContactIsSuperUser] [bit] NOT NULL,
        [ContactIsProviderUser] [bit] NOT NULL,
        [ContactHeadCountTypeGroupDesc] [varchar](30) NOT NULL,
        [ContactCSCompanyAgencyName] [varchar](30) NOT NULL,
        [ContactProfitCenterCode] [char](10) NOT NULL,
        [ContactCostCenterCode] [char](10) NOT NULL,
        [OwnerPersonnelId] [int] NOT NULL,
        [RoomTypeCode] [varchar](50) NULL,
        [CreatedDate] [datetime] NOT NULL,
        [CreatedBy] [varchar](30) NOT NULL,
        [UpdatedDate] [datetime] NULL,
        [UpdatedBy] [varchar](30) NULL,
        [OverriddenStatus] [varchar](50) NULL
    )

    I have created an external table in my ADLA account as follows:

    • CREATE EXTERNAL TABLE IF NOT EXISTS dbo.TABLE1_Local
      (
          FSCServiceRequestId int,
          ServiceRequestCRMId Guid,
          TicketNumberTitle string,
          ProblemDescription string,
          FSCServiceRequestStatusId int,
          FSCServiceRequestPriorityId int,
          PriorityOverrideReason string,
          RequestorPhoneNumber string,
          FSCProblemRoomNumber string,
          BuildingId int?,
          FSCProblemClassId int,
          FSCProblemTypeId int,
          ReclassificationReason string,
          RequestCancellationReason string,
          IsCancelledForReclassification bool?,
          IsSurveyServiceRequest bool?,
          ProblemOccurredUTCDate DateTime?,
          ProblemOccurredUTCYMD int?,
          ProblemOccurredInBuildingTimeZoneDate DateTime?,
          CreationUTCDate DateTime,
          CreationUTCYMD int,
          SubmittedUTCDate DateTime?,
          SubmittedInBuildingTimeZoneDate DateTime?,
          DueUTCDate DateTime?,
          DueUTCYMD int?,
          DueInBuildingTimeZoneDate DateTime?,
          RequestedFutureDueUTCDate DateTime?,
          ProviderAdjustedDueInBuildingTimeZoneDate DateTime?,
          ProviderAdjustedDueInBuildingTimeZoneYMD int?,
          Tier1WorkCompletionByBuildingTimeZoneDate DateTime?,
          Tier1WorkCompletionByBuildingTimeZoneYMD int?,
          ModifiedUTCDate DateTime?,
          ModifiedByPersonnelId int?,
          CompletionUTCDate DateTime?,
          CompletionUTCYMD int?,
          CompletionInBuildingTimeZoneDate DateTime?,
          IsActivityComplete bool,
          IsSLAMet bool?,
          OwningTeamName string,
          CostCenterCode string,
          CaseOriginType string,
          DeviceType string,
          FSCProviderAccountId int,
          CreatedFromSystemCode string,
          RequestorPersonnelId int,
          RequestorEmailAlias string,
          RequestorFullName string,
          RequestorIsSuperUser bool?,
          RequestorIsProviderUser bool,
          RequestorHeadCountTypeGroupDesc string,
          RequestorCSCompanyAgencyName string,
          RequestorProfitCenterCode string,
          RequestorCostCenterCode string,
          ContactPersonnelId int,
          ContactEmailAlias string,
          ContactFullName string,
          ContactIsSuperUser bool,
          ContactIsProviderUser bool,
          ContactHeadCountTypeGroupDesc string,
          ContactCSCompanyAgencyName string,
          ContactProfitCenterCode string,
          ContactCostCenterCode string,
          OwnerPersonnelId int,
          RoomTypeCode string,
          CreatedDate DateTime,
          CreatedBy string,
          UpdatedDate DateTime?,
          UpdatedBy string,
          OverriddenStatus string
      )
      FROM MYDATASOURCE LOCATION "[rel].[TABLE1NAME]";

    I can confirm that the Data source is configured correctly because I can view other external tables. But when I try to preview this table I get the following errors:

    • Failed to connect to data source: 'MYDATASOURCE', with error(s): 'Incorrect syntax near the keyword 'SELECT'.
      Incorrect syntax near ')'.'
    • CQO: Internal Error - Optimizer internal error.  Assert: csExtRowsetInfoNew != nullptr in managed\scopecqo.cpp:2235

    Any idea what could be causing this issue?


    Tuesday, May 30, 2017 10:37 PM

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