(SQL Server) .Z File Compression

Use LZW compression to create a .Z compressed file. Compresses any single file into a .Z format compressed file.

(Chilkat's .Z compression functionality is included as part of the Chilkat Zip license.)

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
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @uc int
    -- Use "Chilkat_9_5_0.UnixCompress" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.UnixCompress', @uc OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @uc, 'CompressFile', @success OUT, 'hamlet.xml', 'hamlet.xml.Z'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @uc, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
      END
    ELSE
      BEGIN

        PRINT 'Success.'
      END

    EXEC @hr = sp_OADestroy @uc


END
GO