PC World - Oracle and Sun Microsystems have been granted an extra week to defend their planned US$7 billion merger in front of European regulators, the European Commission said Friday.Earlier this month the Commission, Europe's top antitrust regulator, issued formal objections to the deal, arguing that it posed a threat to competition in the market for database software.The deadline for a final ruling has been put back to Jan. 27 from Jan. 19, which amounts to six additional working days for Oracle to win over the skeptical regulator. "Oracle requested the extension in order to have the opportunity to further develop its arguments in response to the Commission's concerns," the Commission said in a routine weekly statement on the status ...