EXHIBIT(a)(1)(v)

Offer to Purchase for Cash
All Outstanding Shares of Common Stock
of
HYPERION SOLUTIONS CORPORATION
at $52.00 Net Per Share
by
HOTROD ACQUISITION CORPORATION
a wholly-owned subsidiary of
ORACLE CORPORATION

March 9, 2007

To Our Clients:

Enclosed for your consideration are the Offer to Purchase dated March 9, 2007 and the related Letter of Transmittal (which, together with any amendments or supplements thereto, collectively constitute the “Offer”) in connection with the offer by Hotrod Acquisition Corporation, a Delaware corporation (the “Purchaser”) and a wholly-owned subsidiary of Oracle Corporation, a Delaware corporation (“Oracle”), to purchase for cash all outstanding shares of common stock, par value $0.001 per share, (the “Shares”) of Hyperion Solutions Corporation, a Delaware corporation (the “Company”). We are the holder of record of Shares held for your account. A tender of such Shares can be made only by us as the holder of record and pursuant to your instructions. The Letter of Transmittal is furnished to you for your information only and cannot be used by you to tender Shares held by us for your account.

We request instructions as to whether you wish us to tender any or all of the Shares held by us for your account, upon the terms and subject to the conditions set forth in the Offer to Purchase and the Letter of Transmittal.

Your attention is directed to the following:

1. The tender price is $52.00 per Share in cash, without interest, less any required withholding tax.

2. The Offer and withdrawal rights expire at 5:00 p.m., New York City time, on Friday, April 6, 2007, unless extended (as extended, the “Expiration Date”).

3. The Offer is conditioned upon, among other things, (i) there being validly tendered and not withdrawn before the expiration of the offer a number of Shares of the Company which, together with the shares then owned by Oracle and its subsidiaries (including the Purchaser), represents at least a majority of the total number of Shares then outstanding, and (ii) any waiting periods or approvals under applicable antitrust laws having expired, been terminated or been obtained. The Offer is not conditioned upon Oracle or the Purchaser obtaining financing.

4. Any stock transfer taxes applicable to the sale of Shares to the Purchaser pursuant to the Offer will be paid by the Purchaser, except as otherwise provided in Instruction 6 of the Letter of Transmittal.

If you wish to have us tender any or all of your Shares, please so instruct us by completing, executing, detaching and returning to us the instruction form below. An envelope to return your instructions to us is enclosed. If you authorize tender of your Shares, all such Shares will be tendered unless otherwise specified on the instruction form. Your instructions should be forwarded to us in ample time to permit us to submit a tender on your behalf by the Expiration Date.

The Offer is not being made to, nor will tenders be accepted from or on behalf of, holders of Shares in any jurisdiction in which the making of the Offer or acceptance thereof would not be in compliance with the laws of such jurisdiction.

Payment for Shares purchased pursuant to the Offer will in all cases be made only after timely receipt by Citibank, N.A. (the “Depositary”) of (i) certificates representing the Shares tendered or timely confirmation of the book-entry transfer of such Shares into the account maintained by the Depositary at The Depository Trust Company (the “Book-Entry Transfer Facility”), pursuant to the procedures set forth in Section 3 of the Offer to Purchase, (ii) the Letter of Transmittal (or a facsimile thereof), properly completed and duly executed, with any required signature guarantees or an Agent’s Message (as defined in the Offer to Purchase), in connection with a book-entry delivery, and (iii) any other documents required by the Letter of Transmittal. Accordingly, payment may not be made to all tendering stockholders at the same time depending upon when certificates for or confirmations of book-entry transfer of such Shares into the Depositary’s account at the Book-Entry Transfer Facility are actually received by the Depositary.

Instruction Form with Respect to
Offer to Purchase for Cash
All Outstanding Shares of Common Stock
of
Hyperion Solutions Corporation
by
Hotrod Acquisition Corporation

The undersigned acknowledge(s) receipt of your letter and the enclosed Offer to Purchase dated March 9, 2007, and the related Letter of Transmittal, in connection with the offer by Hotrod Acquisition Corporation to purchase all outstanding shares of common stock, par value $0.001 per share, (the “Shares”) of Hyperion Solutions Corporation.

This will instruct you to tender the number of Shares indicated below held by you for the account of the undersigned, upon the terms and subject to the conditions set forth in the Offer to Purchase and the related Letter of Transmittal.

Number of Shares to be Tendered	SIGN HERE
Shares*	Signature(s)
Dated _ _ , 2007
	Name(s)
	Address(es)
	(Zip Code)

* Unless otherwise indicated, it will be assumed that all Shares held for the undersigned’s account are to be tendered.