Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

SQL Server Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(SQL Server) Removing / Deleting Child Nodes from XML

Demonstrates various methods for removing child nodes from an XML document.

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

<root>
    <fruit color="red">apple</fruit>
    <fruit color="green">pear</fruit>
    <veg color="orange">carrot</veg>
    <meat animal="cow">beef</meat>
    <xyz>
        <fruit color="blue">blueberry</fruit>
        <veg color="green">broccoli</veg>
    </xyz>
    <fruit color="purple">grape</fruit>
    <cheese color="yellow">cheddar</cheese>
</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
    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 @xyz int

    DECLARE @success int

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

    -- The RemoveChild method removes (discards) all direct
    -- children having the specified tag:
    EXEC sp_OAMethod @xml, 'RemoveChild', NULL, 'fruit'

    -- Show the resulting XML:

    PRINT 'Result with all direct children having a tag equal to "fruit" removed:'
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    -- The XML with the "fruit" direct children removed is shown below:
    -- Notice that the "fruit" node beneath "xyz" was not removed.
    -- This correct because it was not a direct child of the calling node.

    -- <root>
    --     <veg color="orange">carrot</veg>
    --     <meat animal="cow">beef</meat>
    --     <xyz>
    --         <fruit color="blue">blueberry</fruit>
    --         <veg color="green">broccoli</veg>
    --     </xyz>
    --     <cheese color="yellow">cheddar</cheese>
    -- </root>

    -- --------------------------------------------------------------------------
    -- Restore the original XML:
    EXEC sp_OAMethod @xml, 'LoadXmlFile', @success OUT, 'fruit.xml'

    -- The RemoveChildWithContent method removes the child
    -- having the exact content specified, regardless of the tag.  
    -- For example:
    EXEC sp_OAMethod @xml, 'RemoveChildWithContent', NULL, 'pear'

    -- Show the resulting XML:

    PRINT 'Result with the node containing "pear" removed:'
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    -- --------------------------------------------------------------------------
    -- Restore the original XML:
    EXEC sp_OAMethod @xml, 'LoadXmlFile', @success OUT, 'fruit.xml'

    -- The RemoveChildByIndex method removes the Nth direct
    -- child.  Indexing begins at 0.  The "xyz" child is at index 4:
    EXEC sp_OAMethod @xml, 'RemoveChildByIndex', NULL, 4

    -- Show the resulting XML:
    -- Notice that the entire "xyz" subtree is removed.

    PRINT 'Result with the node at index 4 removed:'
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    -- --------------------------------------------------------------------------
    -- Restore the original XML:
    EXEC sp_OAMethod @xml, 'LoadXmlFile', @success OUT, 'fruit.xml'

    -- Navigate to the node with tag "xyz"
    EXEC sp_OAMethod @xml, 'FindChild', @xyz OUT, 'xyz'

    -- Remove the "xyz" subtree making it it's own XML document
    -- with the "xyz" node at the root:
    EXEC sp_OAMethod @xyz, 'RemoveFromTree', NULL

    -- Show both XML documents:
    EXEC sp_OAMethod @xyz, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    -- Also, the TreeId property is an integer value assigned
    -- to nodes in an XML document.  All nodes belonging to
    -- the same XML document will have the same TreeId.
    -- Notice that the "xyz" node now has a different TreeId:

    EXEC sp_OAGetProperty @xyz, 'TreeId', @iTmp0 OUT
    PRINT 'xyz TreeId = ' + @iTmp0

    EXEC sp_OAGetProperty @xml, 'TreeId', @iTmp0 OUT
    PRINT 'xml TreeId = ' + @iTmp0

    EXEC @hr = sp_OADestroy @xyz


    EXEC @hr = sp_OADestroy @xml


END
GO

 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.