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SQL Server Examples

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(SQL Server) Demonstrates the ChilkatPath XML Method

Demonstrates how to use the ChilkatPath method. This example uses the XML sample file pigs.xml. The pigs.xml file contains this content:

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
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @xml int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Xml', @xml OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @xml, 'LoadXmlFile', @success OUT, 'qa_data/xml/pigs.xml'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @xml, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xml
        RETURN
      END

    -- Get the content of the "species" node for the 1st animal:
    DECLARE @result nvarchar(4000)

    EXEC sp_OAMethod @xml, 'ChilkatPath', @result OUT, 'animal|species|*'
    -- Output should be "pot belly pig"

    PRINT @result

    -- Get the content of the "type" node for the 2nd animal:
    -- Indexing begins at 0.  Therefore, the 2nd direct child having
    -- the tag "animal" is at index 1
    EXEC sp_OAMethod @xml, 'ChilkatPath', @result OUT, 'animal[1]|type|*'
    -- Output should be "House Pig"

    PRINT @result

    -- Find the pig having the name "Nigel" and display the
    -- birth date.  To do this, we&apos;ll navigate to the node having
    -- tag="name" with the exact content "Nigel", then navigate up, 
    -- and finally navigate back down to the "birth" node:
    EXEC sp_OAMethod @xml, 'ChilkatPath', @result OUT, '/C/name,Nigel|..|birth|*'
    -- Output should be "June, 1991"

    PRINT @result

    -- Navigate to the 1st animal&apos;s picture and print the filename,
    -- description, and caption.
    -- The "$" updates the caller&apos;s internal pointer to reference
    -- the node that is the result of evaluating the path.
    -- An empty string is returned for success, and a NULL/nil/0
    -- pointer (reference) is returned on failure.  
    EXEC sp_OAMethod @xml, 'ChilkatPath', @result OUT, 'animal|picture|$'
    EXEC sp_OAGetProperty @xml, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN

        PRINT 'Failed to navigate to animal|picture.'
        EXEC @hr = sp_OADestroy @xml
        RETURN
      END

    -- Display the contents of the file/description/caption child nodes

    PRINT 'Picture Info:'
    EXEC sp_OAMethod @xml, 'GetChildContent', @sTmp0 OUT, 'file'
    PRINT @sTmp0
    EXEC sp_OAMethod @xml, 'GetChildContent', @sTmp0 OUT, 'description'
    PRINT @sTmp0
    EXEC sp_OAMethod @xml, 'GetChildContent', @sTmp0 OUT, 'caption'
    PRINT @sTmp0

    -- Return back to the root of the XML document:
    EXEC sp_OAMethod @xml, 'GetRoot2', NULL

    -- Display the value of the "spay-neuter" attribute of the 1st animal:

    PRINT '----'
    EXEC sp_OAMethod @xml, 'ChilkatPath', @result OUT, 'animal|gender|(spay-neuter)'

    PRINT @result

    EXEC @hr = sp_OADestroy @xml


END
GO

 

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