(SQL Server) Demonstrate the XML UpdateAttrAt Method

Demonstrates the XML UpdateAttrAt method to update attribute name/value pairs in XML.

Note: This example requires Chilkat v9.5.0.64 or later.

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)
    -- Note: This example requires Chilkat v9.5.0.64 or later.
    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

    EXEC sp_OASetProperty @xml, 'Tag', 'animals'

    DECLARE @autoCreate int
    SELECT @autoCreate = 1

    -- When the autoCreate argument equals 1, the UpdateAttrAt
    -- method auto-creates the children as needed:
    DECLARE @success int
    EXEC sp_OAMethod @xml, 'UpdateAttrAt', @success OUT, 'penguin', @autoCreate, 'feature', 'flightless bird'
    EXEC sp_OAMethod @xml, 'UpdateAttrAt', @success OUT, 'mammal|rodent|squirrel', @autoCreate, 'feature', 'bushy tail'
    EXEC sp_OAMethod @xml, 'UpdateAttrAt', @success OUT, 'mammal|rodent|rat', @autoCreate, 'feature', 'long hairless tail'

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

    -- 	<?xml version="1.0" encoding="utf-8" ?>
    -- 	<animals>
    -- 	    <penguin feature="flightless bird" />
    -- 	    <mammal>
    -- 	        <rodent>
    -- 	            <squirrel feature="bushy tail" />
    -- 	            <rat feature="long hairless tail" />
    -- 	        </rodent>
    -- 	    </mammal>
    -- 	</animals>
    -- 

    -- Now update each node's "feature" attribute..
    EXEC sp_OAMethod @xml, 'UpdateAttrAt', @success OUT, 'penguin', @autoCreate, 'feature', 'black and white'
    EXEC sp_OAMethod @xml, 'UpdateAttrAt', @success OUT, 'mammal|rodent|squirrel', @autoCreate, 'feature', 'grey, red, or black'
    EXEC sp_OAMethod @xml, 'UpdateAttrAt', @success OUT, 'mammal|rodent|rat', @autoCreate, 'feature', 'brown, grey, white, or black'

    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    -- 	<?xml version="1.0" encoding="utf-8" ?>
    -- 	<animals>
    -- 	    <penguin feature="black and white" />
    -- 	    <mammal>
    -- 	        <rodent>
    -- 	            <squirrel feature="grey, red, or black" />
    -- 	            <rat feature="brown, grey, white, or black" />
    -- 	        </rodent>
    -- 	    </mammal>
    -- 	</animals>
    -- 

    EXEC @hr = sp_OADestroy @xml


END
GO