(SQL Server) Methods for Getting Attributes

Demonstrates some methods for getting attribute name/values.

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

<root>
    <car color="black" make="mercedes" model="C350" hp="302" engine="v6" type="sedan">Mercedes Benz C350</car>
</root>

Download Chilkat XML ActiveX

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @sTmp1 nvarchar(4000)
    DECLARE @xml int
    EXEC @hr = sp_OACreate 'Chilkat.Xml', @xml OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @carNode int

    DECLARE @numAttr int

    DECLARE @horsepower int

    DECLARE @i int

    DECLARE @success int

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

        PRINT @sTmp0
        RETURN
      END

    --  Navigate to the "car" node, which is the 1st child:
    EXEC sp_OAMethod @xml, 'FirstChild', @carNode OUT

    --  Get the value of the "model" attribute:

    EXEC sp_OAMethod @carNode, 'GetAttrValue', @sTmp0 OUT, 'model'
    PRINT 'model = ' + @sTmp0

    --  Get the value of the "hp" attribute as an integer:
    EXEC sp_OAMethod @carNode, 'GetAttrValueInt', @horsepower OUT, 'hp'


    PRINT 'horsepower = ' + STR(@horsepower)

    --  Iterate over the attributes and show the name/value of each:
    EXEC sp_OAGetProperty @carNode, 'NumAttributes', @numAttr OUT

    SELECT @i = 0
    WHILE @i < @numAttr
      BEGIN
        EXEC sp_OAMethod @carNode, 'GetAttributeName', @sTmp0 OUT, @i

        EXEC sp_OAMethod @carNode, 'GetAttributeValue', @sTmp1 OUT, @i
        PRINT @sTmp0 + ': ' + @sTmp1
        SELECT @i = @i + 1
      END


END
GO