Oracle bought fellow rival Peoplesoft at the end of last year
Software giant Oracle is buying US rival Siebel Systems in a deal worth $5.85bn (£3.2bn) in cash and stock.
Oracle is offering $10.66 per Siebel share, 16.8% more than Siebel's closing share price on Friday.

source: news.bbc.co.uk/1/hi/business/4237810.stm