-- Oracle Corp. agreed to purchase Primavera Systems Inc., a maker of project portfolio management software, for an undisclosed sum. Primavera will be part of a new Oracle business unit headed by Primavera CEO Joel Koppelman.

-- Symantec Corp. has agreed to pay $695 million to buy MessageLabs Ltd., a U.K. provider of hosted filtering services for spam and Web traffic. The offering will be added to Symantec's Protection Network of hosted backup, data restoration and remote access services.

-- Teradata Corp. Monday was set to unveil Version 13 of its namesake decision-support database, along with a data warehousing appliance that company officials said can handle up to 50 petabytes of data.