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The Associated Press

BRUSSELS – The European Union on Thursday cleared (Nasdaq: ORCL) proposed $7.4 billion takeover of (Nasdaq: JAVA), saying it would not significantly affect competition in the EU.

EU antitrust chief Neelie Kroes said one of the year’s biggest technology deals of the last year could now go ahead as planned because "competition and innovation will be preserved on all the markets concerned."

Its approval had been uncertain since the commission launched a formal antitrust investigation in September over concerns the combination could harm the database software market.

The U.S. Department of Justice has already approved the transaction.

"Oracle’s acquisition of Sun has the potential to revitalize important assets and create new and innovative products" in Europe, Kroes said.

Initially, the commission was worried that Oracle, the world’s No. 1 maker of proprietary database software, would not fully support Sun’s MySQL division, which makes a competing database product, reducing customer choices and increasing cost.

The EU Commission said in a statement that its investigation "showed that although MySQL and Oracle compete in certain parts of the database market, they are not close competitors in others, such as the high-end segment."

It also found that competition could be maintained through other channels.

"The Commission’s investigation showed that another open source database, PostgreSQL, is considered by many database users to be a credible alternative to MySQL and could be expected to replace to some extent the competitive force currently exerted by MySQL on the database market," the statement said.

Sun paid $1 billion for MySQL in 2008.