Oracle's bid to take over Sun Microsystems has been given the go-ahead by the US Department of Justice (DoJ).

In April this year, Oracle announced it planned to purchase Sun for $7.4bn in a bid to create a hardware and software vendor that could compete more effectively with IBM and HP. However the deal was subject to approval by the US Department of Justice.

On June 26, the DoJ said it was extending its review over concerns about the rights to Java, which was developed by Sun, are licensed but it has now given the deal the go-head.

The deal can't be finalised just yet, as Oracle still needs approval from the European Commission, which is investigating the acquisition under the European Union Merger Regulation.

See also: Sun shareholders try to block Oracle sale