Document:

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                                                                   Exhibit 10.83
                            STOCK PURCHASE AGREEMENT

        THIS STOCK PURCHASE AGREEMENT (this "Agreement"), dated as of September
15, 2000, is by and between Crown NorthCorp Limited, a limited liability company
organized under the laws of the United Kingdom ("CNL") with offices at Crown
House, Crown Street, Ipswich, IP1 3HS, United Kingdom (the "Purchaser"), and
CROWN NORTHCORP, INC., a Delaware corporation with offices at 1251 Dublin Road,
Columbus, Ohio 43215 (the "Seller").

                             BACKGROUND INFORMATION

        WHEREAS, the Purchaser desires to purchase from the Seller, and the
Seller desires to sell to the Purchaser, one share of the Series CC Convertible
Preferred Stock, par value $.01 per share, of the Seller (the "Seller Preferred
Stock"), on the terms and conditions set forth herein;

        NOW, THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the adequacy, sufficiency, and receipt of which are
hereby acknowledged, the parties hereto agree as follows:

                             STATEMENT OF AGREEMENT

                                    ARTICLE I
                              THE PURCHASE AND SALE

         SECTION 1.1. TERMS OF THE PURCHASE AND SALE. On the basis of and in
reliance upon the representations and warranties set forth in Articles II and
III, and subject to the terms and conditions set forth herein:

         (a) The Seller shall issue at the Closing (as hereinafter defined) to
the Purchaser a certificate registered in the name of the Purchaser for one
share (the "Closing Share") of Seller Preferred Stock. The Seller and the
Purchaser understand and agree that, pursuant to resolutions adopted by Seller's
Board of Directors, the economic terms of the Seller Preferred Stock will be
subjected to a third-party review and if, following such review, the Seller and
the Purchaser disagree over the economic terms, the issue shall be submitted to
arbitration.

         (b) As consideration for the Closing Share, the Purchaser shall deliver
at the Closing to the Seller $500,000 in cash, by certified check, or by wire
transfer of immediately available funds to an account designated in writing by
the Seller.

         SECTION 1.2. THE CLOSING. The closing of the transaction contemplated
by Section 1.1 (the "Closing") shall take place at such place and time on or
before September 15, 2000 as the Purchaser and the Seller agree.

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         SECTION 1.3. CONDITIONS TO THE OBLIGATION OF THE PURCHASER TO
CONSUMMATE THE TRANSACTIONS TO BE CONSUMMATED HEREUNDER AT THE CLOSING. The
obligations of the Purchaser to consummate the transactions to be consummated
hereunder at the Closing are subject to the following conditions (unless waived
by the Purchaser in its discretion):

         (a) ACCURACY OF REPRESENTATIONS AND COMPLIANCE WITH CONDITIONS. All
representations and warranties of the Seller contained in Article II of this
Agreement shall be true and correct as of the Closing; as of the Closing the
Seller shall have performed and complied with all covenants and agreements and
satisfied all conditions required to be performed and complied with by the
Seller at or before such time by this Agreement; and the Purchaser shall have
received a certificate of the Seller, dated the Closing Date, to that effect,
substantially in the form of Exhibit A.

         (b) OTHER CLOSING DOCUMENTS. The Seller shall have delivered to the
Purchaser on or prior to the Closing such other documents as the Purchaser may
reasonably request in order to enable the Purchaser to determine whether the
conditions to its obligations under this Agreement have been met and otherwise
to carry out the provisions of this Agreement.

         SECTION 1.4. CONDITIONS TO THE OBLIGATION OF THE SELLER TO CONSUMMATE
THE TRANSACTIONS TO BE CONSUMMATED HEREUNDER AT THE CLOSING. The obligations of
the Seller to consummate the transactions to be consummated hereunder at the
Closing are subject to the following conditions (unless waived by the Seller in
its discretion):

         (a) ACCURACY OF REPRESENTATIONS AND COMPLIANCE WITH CONDITIONS. All
representations and warranties of the Purchaser contained in Article III of this
Agreement shall be true and correct as of the Closing; as of the Closing the
Purchaser shall have performed and complied with all covenants and agreements
and satisfied all conditions required to be performed and complied with by the
Purchaser at or before such time by this Agreement; and the Seller shall have
received a certificate executed by Authorized Signatories of the Purchaser,
dated the date of the Closing, to that effect, substantially in the form of
Exhibit B.

         (b) OTHER CLOSING DOCUMENTS. The Purchaser shall have delivered to the
Seller at or prior to the Closing such other documents, including, without
limitation, an Investors Questionnaire, as the Seller may reasonably request in
order to enable the Seller to determine whether the conditions to its
obligations under this Agreement have been met and otherwise to carry out the
provisions of this Agreement.

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                                   ARTICLE II
                  REPRESENTATIONS AND WARRANTIES OF THE SELLER

         SECTION 2.1. REPRESENTATIONS AND WARRANTIES. The Seller represents and
warrants to the Purchaser as of the Closing as follows:

         (a) ORGANIZATION AND QUALIFICATION. The Seller is a corporation duly
organized, validly existing, and in good standing under the laws of its
jurisdiction of incorporation or organization, with all requisite power and
authority, and all necessary consents, authorizations, approvals, orders,
licenses, certificates, and permits of and from, and declarations and filings
with, all federal, state, local, and other governmental authorities and all
courts and other tribunals, to own, lease, license, and use its properties and
assets and to carry on the business in which it is now engaged, except for such
consents, authorizations, approvals, orders, licenses, certificates, permits,
declarations, and filings, the absence of which, individually or in the
aggregate, could not reasonably be expected to have a material and adverse
effect upon the business, financial condition, or results of operation of the
Seller taken as a whole (a "Material Adverse Effect"). The Seller is duly
qualified to transact the business in which it is engaged and is in good
standing as a foreign corporation in every jurisdiction in which its ownership,
leasing, licensing, or use of property or assets or the conduct of its business
makes such qualification necessary, except where the absence of such
qualification or good standing could not reasonably be expected to have a
Material Adverse Effect.

         (b) CAPITALIZATION. The authorized capital stock of the Seller consists
of (i) 30,000,000 shares of Seller Common Stock, of which 10,946,788 shares are
outstanding as of the date hereof (excluding the Closing Shares), and (ii)
1,000,000 shares of Preferred Stock, par value $.01 per share ("Preferred
Stock"), of which none is outstanding as of the date hereof. Each of such
outstanding shares of Seller Common Stock is duly authorized, validly issued,
fully paid, and nonassessable, and was not issued in violation of any applicable
law or of any preemptive right of stockholders. Except for this Agreement and as
set forth on Schedule 2.1(b), there is no commitment, plan, or arrangement to
issue, and no outstanding option, warrant, or other right calling for the
issuance of, any share of capital stock of the Seller or any security or other
instrument convertible into, exercisable for, or exchangeable for capital stock
of the Seller. Except as set forth on Schedule 2.1(b), there is outstanding no
security or other instrument convertible into or exchangeable for capital stock
of the Seller or of any Subsidiary. As used herein, "Knowledge of the Seller"
means the actual knowledge of any one or more of Ronald E. Roark or Stephen W.
Brown, assuming that each possesses the actual knowledge that an officer or
director with their responsibilities would possess after reasonable inquiry into
the applicable matter.

          (c) AUTHORITY TO SELL. The Seller has all requisite power and
authority to execute, deliver, and perform this Agreement. All necessary
corporate proceedings of the Seller have been duly taken to authorize the
execution, delivery, and performance of this Agreement. This Agreement has been
duly authorized, executed, and delivered by the Seller, constitutes the legal,
valid, and binding obligation of the Seller, and is enforceable against it in
accordance with its terms. No consent, authorization, approval, order, license,
certificate, or permit of or

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from, or declaration or filing with, any federal, state, local, or other
governmental authority or any court or other tribunal is required by the Seller
for the execution, delivery, or performance of this Agreement. No consent of any
party to any contract, agreement, instrument, lease, license, arrangement, or
understanding to which the Seller, or to which it or any of its businesses,
properties, or assets are subject, is required for the execution, delivery, or
performance of this Agreement; and the execution, delivery, and performance of
this Agreement will not violate, result in a breach of, conflict with, or (with
or without the giving of notice or the passage of time or both) entitle any
party to terminate or call a default under, entitle any party to rights and
privileges that such party was not receiving or entitled to receive immediately
before this Agreement was executed under, or create any obligation on the part
of the Seller that it was not paying or obligated to pay immediately before this
Agreement was executed under, any term of any such contract, agreement,
instrument, lease, license, arrangement, or understanding, or violate or result
in a breach of any term of the certificate of incorporation (or other charter or
organizational document) or by-laws (or other governing document) of the Seller,
or (if each of the conditions precedent set forth herein or in a schedule hereto
are satisfied) violate, result in a breach of, or conflict with any law, rule,
regulation, order, judgment, or decree binding on the Seller or to which it or
any of its businesses, properties, or assets are subject. Upon its issuance
pursuant hereto, the Closing Share will be validly authorized, validly issued,
fully paid, and nonassessable and will not have been issued in violation of any
preemptive right of stockholders, and the Purchaser will then have good title to
the Closing Share free and clear of all liens, security interests, pledges,
charges, encumbrances, stockholders' agreements, and voting trusts.

         (d) DISCLOSURE. Neither this Agreement nor any other written document,
description, certificate, or statement furnished to the Purchaser by or on
behalf of the Seller pursuant hereto or thereto, contains or will contain any
untrue statement of a material fact, or omits or will omit to state a material
fact, necessary to make the statements contained herein and therein not
misleading in light of the circumstances under which they have been or will be
made.

         (e) BROKERAGE FEES. The Seller has not created any liability of any
Person for any brokerage or finders fee in connection with the transactions
contemplated by this Agreement.

                                   ARTICLE III
                 REPRESENTATIONS AND WARRANTIES OF THE PURCHASER

         SECTION 3.1. REPRESENTATIONS AND WARRANTIES. The Purchaser represents
and warrants to the Seller as of the Closing as follows:

         (a) ORGANIZATION. The Purchaser is a corporation duly organized,
validly existing, and in good standing under the laws of the United Kingdom,
with all requisite power and authority to own, lease, license, and use its
properties and assets and to carry on the business in which it is now engaged
and to own securities issued by the Seller as herein contemplated. The Purchaser
is duly qualified to do business in the United Kingdom.

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         (b) AUTHORITY TO BUY. The Purchaser has all requisite power and
authority to execute, deliver, and perform this Agreement. All necessary
proceedings of the Purchaser have been duly taken to authorize the execution,
delivery, and performance of this Agreement by the Purchaser. This Agreement has
been duly authorized, executed, and delivered by the Purchaser, is the legal,
valid, and binding obligation of the Purchaser, and is enforceable against the
Purchaser in accordance with its terms.

         (c) NON-DISTRIBUTIVE INTENT. The Purchaser is an "accredited investor"
(as defined in Rule 501(a) under the Securities Act of 1933, as amended (the
"Securities Act")). The Purchaser is acquiring the securities to be acquired by
it at the Closing for its own account (and not for the account of others) for
investment and not with a view to the resale or other distribution thereof. The
Purchaser will not sell or otherwise dispose of such securities (whether
pursuant to a liquidating dividend or otherwise) without registration under the
Securities Act or an exemption therefrom, and the certificate or certificates
representing such securities may contain a legend to the foregoing effect and
all legends necessary or desirable, in the judgment of the Purchaser, pursuant
to any applicable state securities law, rule, or regulation. The Purchaser
understands that it may not sell or otherwise dispose of such Shares in the
absence of either a registration statement under the Securities Act or an
exemption from the registration provisions of the Securities Act.

         (d) INVESTMENT COMPANY. The Purchaser is not subject to regulation as
an investment company under the Investment Company Act of 1940, as amended.

         (e) BROKER FEES. Neither the Purchaser nor any of its subsidiaries or
parents has created any liability of any Person for any brokerage or finders fee
in connection with the transactions contemplated by this Agreement.

                                   ARTICLE IV
                             COVENANTS OF THE SELLER

         The Seller covenants to the Purchaser as follows:

         SECTION 4.1. FURNISH FUTURE INFORMATION. After the Closing, the Seller
shall deliver to the Purchaser the following so long as the Purchaser own the
Closing Share:

         (a) within 45 days after the end of each of the first three quarterly
fiscal periods in each fiscal year of the Seller, a consolidated balance sheet
of the Seller and its consolidated subsidiaries as at the end of such period,
and a consolidated statement of income, consolidated statement of retained
earnings, and consolidated statement of cash flows of Seller and its
consolidated subsidiaries for such period, in each case prepared from the books
and records of the Seller and its consolidated subsidiaries in accordance with
generally accepted accounting principles ("GAAP") consistently applied
throughout the periods involved except as permitted by GAAP or, with respect to
financial statement footnotes, by the applicable rules and regulations of the
Commission, setting forth in each case in comparative form the figures for

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the corresponding period of the previous fiscal year, all in reasonable detail,
subject to changes resulting from year-end audit adjustments;

         (b) within 90 days after the end of each fiscal year of the Seller, a
consolidated balance sheet of the Seller and its consolidated subsidiaries as at
the end of such year, and a consolidated statement of income, consolidated
statement of retained earnings, and consolidated statement of cash flows of the
Seller and its consolidated subsidiaries for such year, setting forth in each
case in comparative form the figures for the previous fiscal year, all in
reasonable detail, such consolidated financial statements to be audited by and
to be accompanied by an opinion of the Seller's independent certified public
accountants of recognized national standing, which opinion shall state that such
consolidated financial statements have been prepared in accordance with
generally accepted accounting principles consistently applied and that the audit
by such accountants in connection with such consolidated financial statements
has been made in accordance with generally accepted auditing standards;

         (c) promptly upon their becoming available, copies of all financial
statements, reports, notices, and proxy statements sent by the Seller to its
stockholders, all regular and periodic reports filed by the Seller with any
securities exchange or with the Commission, and all press releases; and

         (d) with reasonable promptness, such other material and public
information and data with respect to the Seller or any of its Subsidiaries as
from time to time may be requested by the Purchaser.

         SECTION 4.2. REASONABLE BEST EFFORTS. Each of the Seller and the
Purchaser agrees to cooperate and to use its reasonable best efforts to cause
the conditions precedent to the Closing to be satisfied in a timely manner.

         SECTION 4.3. RESERVATION OF AUTHORIZED SHARES. For so long as the
Purchaser holds the Seller Preferred Stock, Seller shall continuously hold in
reserve sufficient shares of Seller Common Stock to perform its conversion
obligations under the terms of the Seller Preferred Stock.

                                    ARTICLE V
                           COVENANTS OF THE PURCHASER

         The Purchaser covenants to the Seller as follows:

         SECTION 5.1. COMPLIANCE WITH SECURITIES LAWS. The Purchaser agrees to
make all filings required to be made by it under the Securities Exchange Act of
1934 (the "Exchange Act")with respect to its holdings of securities issued by
the Seller on a timely basis.

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                                   ARTICLE VII
                                  MISCELLANEOUS

         SECTION 7.1. FURTHER ACTIONS. At any time and from time to time, each
party agrees, at its or his expense, to take such actions and to execute and
deliver such documents as may be reasonably necessary to effectuate the purposes
of this Agreement.

         SECTION 7.2. AVAILABILITY OF EQUITABLE REMEDIES. Since a breach of the
provisions of this Agreement may not adequately be compensated by money damages,
any party shall be entitled, in addition to any other right or remedy available
to it, to an injunction restraining such breach or a threatened breach and to
specific performance of any such provision of this Agreement, and in either case
no bond or other security shall be required in connection therewith, and the
parties hereby consent to the issuance of such an injunction and to the ordering
of specific performance.

         SECTION 7.3. SURVIVAL. The covenants, agreements, representations, and
warranties contained in or made pursuant to this Agreement shall survive the
Closing and any delivery of any purchase price by the Purchaser, irrespective of
any investigation made by or on behalf of any party for a period of two (2)
calendar years after such Closing.

         SECTION 7.4. MODIFICATION. This Agreement and the Exhibits and
Schedules hereto, set forth the entire understanding of the parties with respect
to the subject matter hereof, supersede all existing agreements among them
concerning such subject matter, and may be modified only by a written instrument
duly executed by each party (except as otherwise provided in Section 7.5).

         SECTION 7.5. NOTICES. Any notice or other communication required or
permitted to be given hereunder shall be in writing and shall be mailed by
certified mail, return receipt requested (in which case it shall be deemed to be
given five days after mailing) or by Federal Express, Express Mail, or similar
overnight delivery or courier service (in which case it will be deemed to be
given upon actual receipt by the recipient) or delivered (in person or by
telecopy, telex, or similar telecommunications equipment) against receipt to the
party to whom it is to be given at the address of such party set forth below (or
to such other address as the party shall have furnished in writing in accordance
with the provisions of this Section 7.5):

         If to the Purchaser:

                  Crown NorthCorp Limited
                  Crown House, Crown Street
                  Ipswich IP1 3HS
                  United Kingdom
                  Attn.:   Peter Walker
                  Fax:     +44 (0) 1473 283848

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         If to the Seller:

                  Crown NorthCorp, Inc.
                  1251 Dublin Road
                  Columbus, Ohio 43215
                  Attn:    Stephen W. Brown
                  Fax:     +1 614/488-9780

         SECTION 7.6. WAIVER. Any waiver by any party of a breach of any term of
this Agreement shall not operate as or be construed to be a waiver of any other
breach of that term or of any breach of any other term of this Agreement. The
failure of a party to insist upon strict adherence to any term of this Agreement
on one or more occasions will not be considered a waiver or deprive that party
of the right thereafter to insist upon strict adherence to that term or any
other term of this Agreement. Any waiver must be in writing.

         SECTION 7.7. BINDING EFFECT. The provisions of this Agreement shall be
binding upon and inure to the benefit of the Seller, the Purchaser, and their
respective successors and assigns.

         SECTION 7.8. NO THIRD PARTY BENEFICIARIES. This Agreement does not
create, and shall not be construed as creating, any rights enforceable by any
person not a party to this Agreement (except as provided in Section 7.7).

         SECTION 7.9. SEPARABILITY. If any provision of this Agreement is
invalid, illegal, or unenforceable, the balance of this Agreement shall remain
in effect, and if any provision is inapplicable to any person or circumstance,
it shall nevertheless remain applicable to all other persons and circumstances.

         SECTION 7.10. HEADINGS. The headings in this Agreement are solely for
convenience of reference and shall be given no effect in the construction or
interpretation of this Agreement.

         SECTION 7.11. COUNTERPARTS; GOVERNING LAW. This Agreement may be
executed in any number of counterparts, each of which shall be deemed an
original, but all of which together shall constitute one and the same
instrument. It shall be governed by and construed in accordance with the laws of
the State of Delaware, without giving effect to conflict of laws.

         SECTION 7.12. ASSIGNMENTS. This Agreement may be assigned by operation
of law without the consent of any party hereto. This Agreement may be assigned
by the Purchaser to its affiliate without the consent of the Seller. This
Agreement may not otherwise be assigned by any party hereto without the prior
written consent of the other party hereto, which consent shall not be
unreasonably delayed or withheld.

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         IN WITNESS WHEREOF, the parties have duly executed this Agreement as of
the date first written above.

                                            CROWN NORTHCORP LIMITED

                                            By:    /s/ Ronald E. Roark
                                                   Name:    Ronald E. Roark
                                                   Title:   Chairman

                                            CROWN NORTHCORP, INC.

                                            By:   /s/ Stephen W. Brown
                                                   Name:    Stephen W. Brown
                                                   Title:   Secretary

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                                    EXHIBIT A

                         SELLER'S OFFICER'S CERTIFICATE

         Capitalized terms used herein but not otherwise defined herein shall
have the meanings ascribed thereto in that certain Stock Purchase Agreement,
dated as of September ___, 2000, between and among Crown NorthCorp Limited and
Crown NorthCorp, Inc. (the "Stock Purchase Agreement").

         The undersigned, being the Secretary of CROWN NORTHCORP, INC., a
Delaware corporation (the "Seller"), DOES HEREBY CERTIFY, in the name and on
behalf of the Company, as follows:

         1. All representations and warranties of the Seller contained in
Article II of the Stock Purchase Agreement are true and correct as of the date
hereof.

         2. As of the date hereof, the Seller has performed and complied with
all covenants and agreements, and satisfied all conditions required to be
performed and complied with, by the Seller at or before the date hereof by the
Stock Purchase Agreement.

         IN WITNESS WHEREOF, the undersigned has set his hand hereunto, in the
name and on behalf of the Company, as of September ____, 2000.

                                    CROWN NORTHCORP, INC.

                                    By:   /S/ STEPHEN W. BROWN
                                       --------------------------------
                                      Stephen W. Brown, Secretary

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                                    EXHIBIT B
                        PURCHASER'S OFFICER'S CERTIFICATE

         Capitalized terms used herein but not otherwise defined herein shall
have the meanings ascribed thereto in that certain Stock Purchase Agreement,
dated as of September ____, 2000, between and among Crown NorthCorp Limited and
Crown NorthCorp, Inc. (the "Stock Purchase Agreement").

         Each of the undersigned, being the  _________ of CROWN NORTHCORP
LIMITED, a limited liability company organized under the laws of the United
Kingdom, (the "Purchaser"), DOES HEREBY CERTIFY, in the name and on behalf of
the Purchaser, as follows:

         1. As of the date hereof, all representations and warranties of the
Purchaser contained in Article III of the Stock Purchase Agreement are true and
correct as of the date hereof.

         2. As of the date hereof, the Purchaser has performed and complied with
all covenants and agreements, and satisfied all conditions required to be
performed and complied with, by the Purchaser at or before the date hereof by
the Stock Purchase Agreement.

         3. The Purchaser is an "accredited investor," as defined in Rule 501(a)
under the Securities Act.

         4. The Purchaser is purchasing the Closing Share for its own account,
for investment purposes only, and without a view toward the resale or
distribution thereof.

         5. The Seller has made available to the Purchaser a reasonable time
before the Closing the opportunity to ask questions of and receive answers
concerning the Seller and the terms and conditions of the transaction to be
consummated at the Closing.

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         IN WITNESS WHEREOF, the undersigned has set his hand hereunto, in the
name and on behalf of the Company, as of September ____, 2000.

                                        CROWN NORTHCORP LIMITED

                                        By:      /S/  RONALD E. ROARK
                                           ---------------------------------
                                                 Name:    Ronald E. Roark
                                                 Title:   Chairman

                                      -2-Exhibit 10.1

THIS NOTE AND THE SECURITIES ISSUABLE UPON CONVERSION OF THIS NOTE HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR
QUALIFIED UNDER ANY STATE SECURITIES LAW, AND MAY NOT BE SOLD, TRANSFERRED,
ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE REGISTRATION
STATEMENT UNDER SUCH ACT COVERING THIS NOTE AND/OR SUCH SECURITIES, OR THE
HOLDER RECEIVES AN OPINION OF COUNSEL FOR THE HOLDER OF THE NOTE AND/OR
SUCH SECURITIES SATISFACTORY TO THE CORPORATION STATING THAT SUCH SALE,
TRANSFER, ASSIGNMENT OR HYPOTHECATION IS EXEMPT FROM THE REGISTRATION AND
PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT AND THE QUALIFICATION
REQUIREMENTS UNDER STATE LAW.

                       CONVERTIBLE PROMISSORY NOTE

$50,000                                                     July 28, 2000

    1. OBLIGATION.  FOR VALUE RECEIVED, VERTICA SOFTWARE, INC., a Colorado
       ----------
corporation (hereinafter called the "Corporation"), hereby promises to pay
Stephen R. Gross (hereinafter called the "Holder"), on January 28, 2001
(the "Maturity Date"), the principal sum of fifty thousand Dollars
($50,000.00), together with accrued interest on such principal sum at the
annual rate of ten percent (10%).

    2. MEDIUM OF PAYMENT.  The principal and accrued interest on this Note
       -----------------
are payable in lawful money of the United States of America at the Holder's
address set forth below, or at such other address as the Holder hereof may
from time to time designate to the Corporation in writing.

    3. PREPAYMENT.  The Corporation may, upon giving the Holder thirty (30)
       ----------
days prior written notice, prepay this Note, in whole or in part, at any
time.

    4. CONVERSION/PAYMENT.  On or December 28, 2000, the Holder shall, by
       ------------------
giving written notice to the Corporation (the "Election Notice"), elect to
(i) convert the entire principal and accrued interest on this Note into
Common Stock shares of the Corporation at a conversion price equal to 75%
of the closing sale price of the Common Stock as reported on the OTCBB on
the date of the Election Notice, (ii) or have the principal and accrued
interest on this Note paid on the original Maturity Date.  If the Holder
elects to convert this Note into shares of Common Stock, no shares of the
Corporation shall be issued to the Holder, and the Holder shall have no
rights to receive such shares, until the Corporation has received this Note
from the Holder for cancellation, and upon such receipt, the Corporation
will promptly issue and deliver to the Holder a certificate of its Common
Stock evidencing the number of shares into which this Note will have been
converted.  If the Holder

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<PAGE>

fails to give the Election Notice by January 28, 2001, such failure
shall be deemed an election by the Holder to have the principal and accrued
interest on the Note paid on the original Maturity Date.

    5. DEFAULT.  In the event of default in the payment of principal and
       -------
accrued interest on this Note when due, then the entire outstanding balance
of principal and accrued interest shall become immediately due and payable
at the option of the Holder of this Note.

    6. INVESTMENT REPRESENTATION.  Neither this Note, the Warrant or the
       -------------------------
Common Stock shares issuable upon the conversion of this Note or issuable
upon the exercise of the Warrant have been registered under the Securities
Act of 1933, as amended (the "Securities Act"), or under any applicable
state securities laws.  Holder acknowledges by acceptance of the Note that
(a) he has acquired this Note for investment and not with a view toward or
in connection with distribution thereof; (b) he has a pre-existing personal
or business relationship with the Corporation, or its executive officers,
or by reason of his business or financial experience he has the capacity to
protect his own interests in connection with the transaction; and (c) he is
an "Accredited Investor" as such term is defined under Rule 501 promulgated
under the Securities Act.  Holder agrees that any shares issuable upon
conversion of this Note or exercise of the Warrant will be acquired for
investment and not with a view toward distribution thereof, and such shares
will not be registered under the Securities Act and applicable state
securities laws, and that such shares may have to be held indefinitely
unless they are subsequently registered or qualified under the Securities
Act and applicable state securities laws or, based on an opinion of counsel
reasonably satisfactory to the Corporation, an exemption from such
registration and qualification is available.  Holder, by acceptance hereof,
consents to the placement of the following restrictive legend, or similar
legend, on each certificate to be issued to Holder by the Successor Company
in connection with the issuance of such shares:

    "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR QUALIFIED UNDER
ANY STATE SECURITIES LAW, AND MAY NOT BE SOLD, TRANSFERRED, ASSIGNED OR
HYPOTHECATED UNLESS (A) THERE IS AN EFFECTIVE REGISTRATION STATEMENT UNDER
SUCH ACT OR LAWS COVERING SUCH SECURITIES, OR (B) THE HOLDER RECEIVES AN
OPINION OF COUNSEL FOR THE HOLDER OF THE SECURITIES SATISFACTORY TO THE
CORPORATION, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION
IS EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF
SUCH ACT AND ANY FURTHER QUALIFICATION REQUIREMENTS UNDER APPLICABLE STATE
LAWS."

    7. PUBLIC OFFERING LOCK-UP.  In connection with any underwritten
       -----------------------
registration of the Corporation's securities, the Holder agrees, upon the
request of the Corporation and the underwriters managing such underwritten
offering of the Company's securities, not to sell, make any short sale of,
loan, grant any option for the purchase of, or otherwise dispose of any
shares of Common Stock issuable upon conversion of this Note or exercise of
the Warrant without the prior written consent of the Corporation and such
underwriters, as the case may be, for such period of time not to exceed

                                    2

<PAGE>

fourteen (14) days before and one hundred eighty (180) days after the
effective date of such registration as the underwriters may specify.  The
Corporation and underwriters may request such additional written agreements
in furtherance of such standoff in the form reasonably satisfactory to the
Corporation and such underwriter.  The Corporation may also impose
stop-transfer instructions with respect to the shares and any other
securities subject to the foregoing restrictions until the end of said one
hundred eighty (180) day period.

    8. NOTICES.  Any communication or notices may be delivered or mailed to
       -------
the offices of the Corporation at its principal place of business and to
the Holder at the Holder's address set forth below, or to such other
addresses as the Corporation, or Holder, may designate in writing from time
to time.

    9. APPLICABLE LAW/ATTORNEYS' FEES.  This Note shall be governed by and
       ------------------------------
construed in accordance with the laws of the State of California applicable
to contracts between California residents entered into and to be performed
entirely within the State of California.  If an action is brought to
collect this Note, the Holder hereof shall be entitled to receive all costs
of collection including, without limitation, reasonable attorneys' fees.

    10.  WAIVER/ASSIGNMENT.  The undersigned hereby waives presentment,
         -----------------
demand, protest, and notice of nonpayment or dishonor of this Note.  This
Note may not be assigned by the Holder without the Corporation's prior
written consent.

    11.  NOTE CONFERS NO RIGHTS OF SHAREHOLDER.  The Holder shall not have
         -------------------------------------
any rights as a shareholder of the Corporation with regard to the shares
issuable hereunder prior to actual conversion hereunder.

    Executed on July 28, 2000, at Emeryville, California.

                                     Vertica Software, Inc.

                                     By: /s/ Hans Nehme
                                     ----------------------
                                     Hans Nehme, President

    The name and address of the registered Holder of this Note is:

    Stephen R. Gross
    2625 Cumberland Parkway
    Suite 400
    Atlanta, GA 30339

                                    3

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