SQL Server

HasChildWithTag using a Tag Path

Demonstrates calling HasChildWithTag with a tag path. SQL Server

-- 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
    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', 'world'

    EXEC sp_OAMethod @xml, 'NewChild2', NULL, 'north_america|united_states|california|san_francisco', 'Silicon Valley'
    EXEC sp_OAMethod @xml, 'NewChild2', NULL, 'north_america|united_states|california|san_diego', 'Birthplace of California'
    EXEC sp_OAMethod @xml, 'NewChild2', NULL, 'north_america|united_states|illinois|chicago', 'Windy City'

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

    -- Produces the following XML
    -- 
    -- 	<?xml version="1.0" encoding="utf-8" ?>
    -- 	<world>
    -- 	    <north_america>
    -- 	        <united_states>
    -- 	            <california>
    -- 	                <san_francisco>Silicon Valley</san_francisco>
    -- 	                <san_diego>Birthplace of California</san_diego>
    -- 	            </california>
    -- 	            <illinois>
    -- 	                <chicago>Windy City</chicago>
    -- 	            </illinois>
    -- 	        </united_states>
    -- 	    </north_america>
    -- 	</world>
    -- 

    DECLARE @hasChicago int
    EXEC sp_OAMethod @xml, 'HasChildWithTag', @hasChicago OUT, 'north_america|united_states|illinois|chicago'

    PRINT 'hasChicago = ' + @hasChicago

    DECLARE @hasNaperville int
    EXEC sp_OAMethod @xml, 'HasChildWithTag', @hasNaperville OUT, 'north_america|united_states|illinois|naperville'

    PRINT 'hasNaperville = ' + @hasNaperville

    DECLARE @hasIllinois int
    EXEC sp_OAMethod @xml, 'HasChildWithTag', @hasIllinois OUT, 'north_america|united_states|illinois'

    PRINT 'hasIllinois = ' + @hasIllinois

    EXEC @hr = sp_OADestroy @xml


END
GO