Oracle Corp. agreed to buy Sun Microsystems Inc. for $7.4 billion, or $9.50 a share in cash. “We expect this acquisition to be accretive to Oracle’s earnings by at least 15 cents on a non-GAAP basis in the first full year after closing,” said Oracle President Safra Catz.

“We estimate that the acquired business will contribute over $1.5 billion to Oracle’s non-GAAP operating profit in the first year, increasing to over $2 billion in the second year,” Catz said.

“This would make the Sun acquisition more profitable in per share contribution in the first year than we had planned for the acquisitions of BEA, PeopleSoft and Siebel combined.

Oracle said the boards of both companies unanimously approved the transaction, which is anticipated to close this summer, subject to Sun stockholder approval, certain regulatory approvals and customary closing conditions.