(SQL Server) XML Sort Records by Content

Demonstrates the SortRecordsByContent method.

The input XML, available at http://www.chilkatsoft.com/data/fruitRecordsSort.xml, is this:

<root>
    <fruits>
        <fruit>
            <name>apple</name>
            <color>red</color>
        </fruit>
        <fruit>
            <name>banana</name>
            <color>yellow</color>
        </fruit>
        <fruit>
            <name>blackberry</name>
            <color>purple</color>
        </fruit>
        <fruit>
            <name>blueberry</name>
            <color>blue</color>
        </fruit>
        <fruit>
            <name>orange</name>
            <color>orange</color>
        </fruit>
        <fruit>
            <name>pear</name>
            <color>green</color>
        </fruit>
    </fruits>
</root>

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @xml int
    -- Use "Chilkat_9_5_0.Xml" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Xml', @xml OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @xSortRoot int

    DECLARE @success int

    -- The sample input XML is available at http://www.chilkatsoft.com/data/fruitRecordsSort.xml
    EXEC sp_OAMethod @xml, 'LoadXmlFile', @success OUT, 'fruitRecordsSort.xml'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @xml, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xml
        RETURN
      END

    -- The "fruit" records are direct children of the "fruits" node.
    -- Therefore, to sort the fruit records, the SortRecordsByContent
    -- method must be called from the "fruits" node.
    EXEC sp_OAMethod @xml, 'FindChild', @xSortRoot OUT, 'fruits'

    -- Sort by the "name" field in ascending order.
    DECLARE @bAscending int
    SELECT @bAscending = 1
    EXEC sp_OAMethod @xSortRoot, 'SortRecordsByContent', NULL, 'name', @bAscending

    -- Show the result:
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    -- <root>
    --     <fruits>
    --         <fruit>
    --             <name>apple</name>
    --             <color>red</color>
    --         </fruit>
    --         <fruit>
    --             <name>banana</name>
    --             <color>yellow</color>
    --         </fruit>
    --         <fruit>
    --             <name>blackberry</name>
    --             <color>purple</color>
    --         </fruit>
    --         <fruit>
    --             <name>blueberry</name>
    --             <color>blue</color>
    --         </fruit>
    --         <fruit>
    --             <name>orange</name>
    --             <color>orange</color>
    --         </fruit>
    --         <fruit>
    --             <name>pear</name>
    --             <color>green</color>
    --         </fruit>
    --     </fruits>
    -- </root>

    EXEC @hr = sp_OADestroy @xSortRoot


    EXEC @hr = sp_OADestroy @xml


END
GO