SQL Server

SFTP HardLink - Create a Hard Link using the hardlink@openssh.com Extension

See more SFTP Examples

Demonstrates how to create a hard link on the SFTP server using the hardlink@openssh.com extension. Note: This only works on servers supporting the hardlink@openssh.com extension.

Note: This example requires Chilkat v9.5.0.71 or greater.

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 @success int
    SELECT @success = 0

    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @sftp int
    EXEC @hr = sp_OACreate 'Chilkat.SFtp', @sftp OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Pass a domain or IP address..
    EXEC sp_OAMethod @sftp, 'Connect', @success OUT, 'my-sftp-server.com', 22
    IF @success = 1
      BEGIN
        EXEC sp_OAMethod @sftp, 'AuthenticatePw', @success OUT, 'mySFtpLogin', 'mySFtpPassword'
      END
    IF @success = 1
      BEGIN
        EXEC sp_OAMethod @sftp, 'InitializeSftp', @success OUT
      END
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        RETURN
      END

    -- Create a hard link on the server.
    -- We'll create the hard link named "somefile2.txt" in our HOME directory
    -- which links to the file somefile.txt also in our HOME directory.
    EXEC sp_OAMethod @sftp, 'HardLink', @success OUT, 'somefile.txt', 'somefile2.txt'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        RETURN
      END


    PRINT 'Successfully created hard link.'

    EXEC @hr = sp_OADestroy @sftp


END
GO