SQL Server

FTP Upload / Download to a BinData Object

Demonstrates how to FTP upload the contents of a BinData object, and FTP downloads to the a BinData object. 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
    DECLARE @iTmp0 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 Chilkat Ftp2 to have been previously unlocked.
    -- See Unlock Ftp2 for sample code.

    DECLARE @ftp int
    EXEC @hr = sp_OACreate 'Chilkat.Ftp2', @ftp OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @ftp, 'Hostname', 'www.my-ftp-server.com'
    EXEC sp_OASetProperty @ftp, 'Username', 'mFtpLogin'
    EXEC sp_OASetProperty @ftp, 'Password', 'myFtpPassword'

    -- Connect to the FTP server.
    EXEC sp_OAMethod @ftp, 'ConnectOnly', @success OUT
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        RETURN
      END

    -- Authenticate with the FTP server.
    EXEC sp_OAMethod @ftp, 'LoginAfterConnectOnly', @success OUT
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        RETURN
      END

    DECLARE @bdA int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdA OUT

    EXEC sp_OAMethod @bdA, 'LoadFile', @success OUT, 'qa_data/jpg/penguins.jpg'

    -- Upload the contents of bdA to the FTP server.
    DECLARE @remoteFilename nvarchar(4000)
    SELECT @remoteFilename = 'penguins.jpg'
    EXEC sp_OAMethod @ftp, 'PutFileBd', @success OUT, @bdA, @remoteFilename
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        EXEC @hr = sp_OADestroy @bdA
        RETURN
      END

    -- Download...
    DECLARE @bdB int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdB OUT

    EXEC sp_OAMethod @ftp, 'GetFileBd', @success OUT, @remoteFilename, @bdB
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        EXEC @hr = sp_OADestroy @bdA
        EXEC @hr = sp_OADestroy @bdB
        RETURN
      END

    -- Verify that bdA and bdB have the exact same contents.

    EXEC sp_OAGetProperty @bdA, 'NumBytes', @iTmp0 OUT
    PRINT 'size of bdA: ' + @iTmp0
    EXEC sp_OAMethod @bdA, 'ContentsEqual', @iTmp0 OUT, @bdB
    IF @iTmp0 = 1
      BEGIN

        PRINT 'Contents are equal. Success.'
      END
    ELSE
      BEGIN

        PRINT 'Contents are NOT equal.  Failed.'
      END

    EXEC sp_OAMethod @ftp, 'Disconnect', @success OUT

    EXEC @hr = sp_OADestroy @ftp
    EXEC @hr = sp_OADestroy @bdA
    EXEC @hr = sp_OADestroy @bdB


END
GO