xml OPENROWSET & fetching data from different xml levels

  • Hello!

    There's an xml file config2.xml containing list of printing queues of a host (2 queues in the list)

    The following script gives me 2 tables. One contains 2 SerialNumbers and the other 2 QueueNames

    DECLARE @xml xml
    SELECT @xml = C
    FROM OPENROWSET (BULK 'd:\root\config2.xml', SINGLE_BLOB) AS Queues(C)

    SELECT
    doc.col.value('serial[1]', 'nvarchar(30)') Serial
    FROM @xml.nodes('/config/queues/queue/assets') doc(col)

    SELECT doc1.col.value('queue-name[1]','nvarchar(30)') QueueName
    FROM
    @xml.nodes('/config/queues/queue') doc1(col)

    I'd like to create a single table containing 2 lines, each one with SerialNumber and the corresponding QueueName

    The problem, as I see it, is that there's in the XML file there's no unique ID that could be used for Join operation

    Would someone please suggest a solution?

    • This topic was modified 2 years, 7 months ago by  nkat. Reason: spellcheck
    • This topic was modified 2 years, 7 months ago by  nkat. Reason: code check
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  • SELECT 
    HIGHERLEVEL.QueueName,
    LOWERLEVEL.Serial
    FROM
    (
    SELECT
    row_number() over(order by (select 0)) as ID
    ,doc.col.value('serial[1]', 'nvarchar(30)') Serial
    FROM
    @xml.nodes('/config/queues/queue/assets') doc(col)
    ) as LOWERLEVEL
    INNER JOIN
    (
    SELECT
    row_number() over(order by (select 0)) as ID
    ,doc1.col.value('@id[1]','nvarchar(30)') as QueueName
    FROM @xml.nodes('/config/queues/queue') doc1(col)
    ) as HIGHERLEVEL
    ON
    HIGHERLEVEL.ID = LOWERLEVEL.ID
  • The Serial value and the Queue name are both children of the queue nodes. Just use the path to the Serial value.

    SELECT doc1.col.value('(@id)[1]', 'varchar(64)')            AS [ID],
    doc1.col.value('(queue-name)[1]', 'nvarchar(30)') AS [QueueName],
    doc1.col.value('(assets/serial)[1]', 'nvarchar(30)') AS [Serial],
    doc1.col.value('(@enabled)[1]', 'varchar(64)') AS [Enabled],
    doc1.col.value('(@paused)[1]', 'varchar(64)') AS [Paused]
    FROM @xml.nodes('/config/queues/queue') doc1(col);

    Eddie Wuerch
    MCM: SQL

  • Thank you, Eddie! This is way more elegant than my approach

  • Hello!

    Let me please ask you for advice again

    Attached is another example of a xml file, now with 3 layers of data below point of entrance '/config/queues/queue', so to speak

    For the moment, the following code

    USE LSWDS
    GO
    SET QUOTED_IDENTIFIER ON
    GO
    SET ANSI_NULLS ON
    DECLARE @xml xml
    DECLARE @DateTimeCurrent DATETIME

    SET @DateTimeCurrent = Cast(SYSDATETIME() as smalldatetime)

    SELECT @xml = C
    FROM OPENROWSET (BULK 'D:\root\sls\configMultiLevels.xml', SINGLE_BLOB) AS Queues(C)

    ;with cteQueuesByConfig AS (
    SELECT
    --@DateTimeCurrentas cntDateTimeStamp
    doc1.col.value('(assets/serial)[1]', 'nvarchar(30)') AS cntSerial
    ,doc1.col.value('queue-name[1]','nvarchar(50)') as cntQueueName
    ,doc1.col.value('queue-model[1]','nvarchar(50)') as cntMachineOS
    ,doc1.col.value('queue-group[1]','nvarchar(50)') as cntGroup
    ,doc1.col.value('install-date[1]','nvarchar(50)') as cntInstallDate
    ,doc1.col.value('(profile/@ping)[1]','nvarchar(50)') as cntProfilePing
    ,doc1.col.value('(profile/system/fqdns)[1]','nvarchar(50)') as cntFQDN
    ,doc1.col.value('(profile/spool/printers/printer/@name)[1]','nvarchar(50)') as cntPrinterName
    ,doc1.col.value('@id[1]','nvarchar(30)') as cntQueueID

    FROM
    @xml.nodes('/config/queues/queue') doc1(col)
    )

    SELECT * FROM cteQueuesByConfig
    WHERE cntQueueID like '%remote%'
    ORDER BY cntFQDN Asc

    gives me just P1 line. I'd rather have 3 lines in the resulting table all of them with same cntProfilePing, cntQueueID but different cntPrinterName

    How would you catch them all?

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