(SQL Server) List Files in Zip using FirstEntry/NextEntry

See more Zip Examples

Demonstrates how to iterate over the files and directories in a zip archive using the FirstEntry and NextEntry functions.

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
    -- 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 @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, 'OpenZip', @success OUT, 'qa_data/zips/xml_files.zip'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @zip
        RETURN
      END

    DECLARE @entry int
    EXEC sp_OAMethod @zip, 'FirstEntry', @entry OUT
    EXEC sp_OAGetProperty @zip, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN

        PRINT 'This zip archive is empty.'
        EXEC @hr = sp_OADestroy @zip
        RETURN
      END

    DECLARE @finished int
    SELECT @finished = 0
    WHILE @finished = 0
      BEGIN

        EXEC sp_OAGetProperty @entry, 'IsDirectory', @iTmp0 OUT
        IF @iTmp0 = 0
          BEGIN
            EXEC sp_OAGetProperty @entry, 'FileName', @sTmp0 OUT
            PRINT @sTmp0
          END
        ELSE
          BEGIN

            EXEC sp_OAGetProperty @entry, 'FileName', @sTmp0 OUT
            PRINT '(directory) ' + @sTmp0
          END
        DECLARE @next int
        EXEC sp_OAMethod @entry, 'NextEntry', @next OUT
        EXEC sp_OAGetProperty @entry, 'LastMethodSuccess', @iTmp0 OUT
        IF @iTmp0 = 0
          BEGIN
            SELECT @finished = 1
          END
        EXEC @hr = sp_OADestroy @entry

        SELECT @entry = @next
      END

    -- Sample output showing both file and directory entries:

    -- a1.xml
    -- b1.xml
    -- c1.xml
    -- (directory) dir1/
    -- dir1/a2.xml
    -- dir1/c2.xml
    -- (directory) dir2/
    -- (directory) dir2/dir3/
    -- dir2/dir3/c3.xml

    EXEC @hr = sp_OADestroy @zip


END
GO