EXHIBIT 99.13
                                          
                            CENTURA SOFTWARE CORPORATION
                                   PRESS RELEASE
                                          
             CENTURA SOFTWARE INTRODUCES THE FIRST RELATIONAL DATABASE 
                                  FOR SMART CARDS

REDWOOD SHORES, CA. JULY 21, 1998 --- Centura Software Corporation (NASDAQ:
CNTR/ formerly Gupta Corporation) today announced the availability of SQL Smart
Card--the first embedded relational database available for smart cards.  SQL
Smart Card is part of the Centura MicroServer strategy which allows applications
embedded with SQL databases to scale down to new hardware platforms including
Windows CE, Palm Pilot and Psion, and other information appliances that require
small database engines.

SQL Smart Card is currently being used in a pilot project by the Department of
Commerce in Mexico to process import permits for the North American Free Trade
Agreement (NAFTA). The Pilot has substantially reduced paperwork at the border
and increased security at the crossing.

 "Like many government agencies, our policies for controlling the importation of
goods require coordinating paperwork processed in multiple locations," states
Eduardo Honey, project leader for the pilot development. Honey continues, "Using
a paper-based system, it was impossible to track and control the importing of
products into Mexico, as there are multiple entrant points.  With our new smart
card system, we have not only eliminated the problems related to the paperwork
process, we have immediate, up to date information about the status of imports
and we have a more secure process at the border."  
     
Currently, all companies authorized to import goods into Mexico are issued a
smart card.  The smart card embedded database is initialized with the quantity
and types of goods authorized for import.  Customs agents along the border are
equipped with PCs and smart card readers, which can read and display which
products are authorized for import.  The import customs officer updates the
database to reflect imports that day, and the updated information is written
back to the SQL database stored on the smart card.  This local information is
updated each night to the department's main server, providing a consolidated
status of all imports.  Using smart card technology, the Mexican government can
now effectively control and report the importing of all goods into the country
in a secure manner. 

"SQL Smart Card facilitates a new generation of smart card applications and
extends the smart card industry beyond the flat file data structure," stated
Lionel Carrasco, Centura's vice president of business development.  "Using
Centura technology, developers avoid low level, complex programming to access
smart card technology.  Instead, developers can read and write to SQL databases
on smart cards using the same read, write and insert commands used to manage SQL
databases on disk-based storage systems via a simple ODBC driver."


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Because developers have the ability to store and update relational database
information on smart cards using common SQL commands, they can work with a
multitude of smart card vendors.  Centura expects other new, innovative
solutions to be developed where smart card technology provides a combination of
individual security and immediate access to information. Centura is currently
looking to forge new strategic alliances and partnerships so that it can further
apply its technology in the smart card industry.

ABOUT CENTURA SOFTWARE CORPORATION

Centura Software (NASDAQ:CNTR), founded as Gupta in 1984, was the first company
to create fully relational client/server embedded DBMS for the personal
computer.  Today its products help developers build and deploy component based
business applications requiring embedded databases. Applications developed and
deployed with Centura's Integrated Development Environment products, SQLBase,
Centura Team Developer and Centura net.db can scale from the Web down to smart
appliances. Current Centura products are all year 2000 compliant. Centura has 26
offices located throughout the world in North America, Latin America,
Asia/Pacific, Europe, Middle East and Africa. More information about the company
and its products is located on Centura's Web site at
http://www.centurasoft.com/.

For more information:

Centura Software Corporation                 
Kathy Lane                              
Senior Vice President                        
(650) 596-3400           
http://www.centurasoft.com/                       

Imagio Public Relations
Ingrid Ougland
Account Executive
(206)625-0252
mailto:bridgitt@imagio.com


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