Problem solve Get help with specific problems with your technologies, process and projects.

ZIP files with a stored procedure

A SQL Server stored procedure that zips files from a source and destination directory that you pass when calling the procedure.

Here is a simple SQL Server stored procedure that zips files from a source and destination directory that you pass...

when calling the procedure. It uses the DOS-based wzzip.exe to zip files specified into a zip file named the current date and time, e.g., You must have the wzzip.exe file in the path you supply for the @ZIPEXE parameter. You could optionally remove this parameter and hard code the path to the wzzip.exe or add the wzzip.exe path to an environment variable.

        @ZipName VARCHAR(8000),
        @DateConvert SMALLDATETIME,
        @Result INT
SET @DateConvert = GETDATE() --Declare the current date time so that
                             --conversions happen at the same date time
SET @ZipName = CONVERT(VARCHAR(10), @DateConvert, 112) +  --Add the date to the file name 
    SUBSTRING(CONVERT(VARCHAR(10), @DateConvert, 108), 1,2) + --add the hour to the file name
    SUBSTRING(Convert(varchar(10), @DateConvert, 108), 4,2) + --add the minute to the file name
    + '.ZIP'
SET @Dest = @ZIPEXE + ' ' + @DEST + @ZipName 
SET @WINZIP = @Dest + ' ' + @Source
EXEC @Result = master.dbo.XP_CMDSHELL @Winzip, no_output
By placing this stored procedure in the Master database, you can access this from any of your databases. The @Result variable can be used to verify that files were zipped sucessfully and then delete the original files. In one database, I actually have this procedure use the XP_SENDMAIL procedure to send an email notifying me if the process fails.

For More Information

  • Feedback: E-mail the editor with your thoughts about this tip.
  • More tips: Hundreds of free SQL Server tips and scripts.
  • Tip contest: Have a SQL Server tip to offer your fellow DBAs and developers? The best tips submitted will receive a cool prize -- submit your tip today!
  • Ask the Experts: Our SQL, database design, Oracle, SQL Server, DB2, metadata, and data warehousing gurus are waiting to answer your toughest questions.
  • Forums: Ask your technical SQL Server questions--or help out your peers by answering them--in our active forums.
  • Best Web Links: SQL Server tips, tutorials, and scripts from around the Web.

This was last published in April 2003

Dig Deeper on SQL Server Stored Procedures

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.