(SQL Server) Remove a File from a .zip

Demonstrates how to remove a file from a .zip.

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
    -- This requires the Chilkat Zip API to have been previously unlocked.
    -- See Unlock Chilkat Zip for sample code.

    -- First prepare a .zip and write it..
    DECLARE @zip int
    -- Use "Chilkat_9_5_0.Zip" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Zip', @zip OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int

    EXEC sp_OAMethod @zip, 'NewZip', @success OUT, 'qa_output/abc.zip'

    -- Add some files..
    DECLARE @entry int
    EXEC sp_OAMethod @zip, 'AppendString', @entry OUT, 'a.txt', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
    EXEC @hr = sp_OADestroy @entry

    EXEC sp_OAMethod @zip, 'AppendString', @entry OUT, 'b.txt', 'bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb'
    EXEC @hr = sp_OADestroy @entry

    EXEC sp_OAMethod @zip, 'AppendString', @entry OUT, 'c.txt', 'cccccccccccccccccccccccccccccccccccc'
    EXEC @hr = sp_OADestroy @entry

    -- Write to qa_output/abc.zip
    -- This .zip contains three files: a.txt, b.txt, and c.txt
    EXEC sp_OAMethod @zip, 'WriteZipAndClose', @success OUT

    -- -------------------------------------------------------------------
    -- Open abc.zip, remove an entry, and re-write.
    DECLARE @zip2 int
    -- Use "Chilkat_9_5_0.Zip" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Zip', @zip2 OUT

    EXEC sp_OAMethod @zip2, 'OpenZip', @success OUT, 'qa_output/abc.zip'

    EXEC sp_OAMethod @zip2, 'GetEntryByName', @entry OUT, 'b.txt'
    EXEC sp_OAMethod @zip2, 'DeleteEntry', @success OUT, @entry
    EXEC @hr = sp_OADestroy @entry

    -- Write the modified .zip back to "abc.zip"
    EXEC sp_OAMethod @zip2, 'WriteZip', @success OUT

    -- To write to a different filename, change the FileName..
    EXEC sp_OASetProperty @zip2, 'FileName', 'qa_output/ac.zip'
    EXEC sp_OAMethod @zip2, 'WriteZipAndClose', @success OUT


    PRINT 'success.'

    EXEC @hr = sp_OADestroy @zip
    EXEC @hr = sp_OADestroy @zip2


END
GO