Document:

<PAGE>   1
                                                                   EXHIBIT 10.19

                       ASSIGNMENT AND ASSUMPTION AGREEMENT

               This Assignment and Assumption Agreement is entered into as of
the 3rd day of April, 2000 by and between PricewaterhouseCoopers LLP, a Delaware
registered limited liability partnership ("Assignor"), and Informatica
Corporation, a Delaware corporation ("Assignee").

                                   WITNESSETH:

               WHEREAS, Assignor and assignee are parties to that certain
Intellectual Property Transfer and Consulting Agreement dated March 31, 2000 by
and among Assignor and Assignee (the "Agreement"), pursuant to Section 1.1 of
which Assignor agreed to contribute, convey, transfer and assign to Assignee the
Transferred IP (as defined in the Agreement);

               WHEREAS, the Agreement provides that the Assignor shall assign,
and the Assignee shall assume and agree to pay, perform and discharge when due,
those obligations set forth in Exhibit A hereto (the "Assumed Obligations");

               NOW, THEREFORE, pursuant to the terms and conditions of the
Agreement, and for good and valuable consideration, the receipt and sufficiency
of which is hereby acknowledged, Assignor and Assignee agree as follows:

               1. Assignor hereby assigns, transfers, and delivers to Assignee
the Assumed Obligations.

               2. Assignor hereby accepts the foregoing assignment and assumes
and agrees to keep, observe, perform, pay and discharge when due the Assumed
Obligations.

               3. Assignor and Assignee hereby agree, from time to time, at the
reasonable request of the other, to execute and deliver such other instruments
of conveyance, transfer or assumption and to take such other actions as the
other may reasonably request in order to more effectively consummate the
transactions contemplated by this Assignment and Assumption Agreement.

               4. This Assignment and Assumption Agreement is executed and
delivered pursuant to and made subject to and with the benefit of the
representations, warranties, covenants, terms conditions and other provisions of
the Agreement, including without limitation the indemnification provisions set
forth in Article XI thereof. Capitalized terms used herein and not defined
herein shall have the meanings ascribed to them in the Agreement.

               5. This Assignment and Assumption Agreement shall be binding upon
and inure to the benefit of the respective successors and assigns of the parties
hereto.

               6. This Assignment and Assumption Agreement shall be governed by
and construed in accordance with the laws of the State of Delaware.
<PAGE>   2

               IN WITNESS WHEREOF, the parties hereto have executed this
Assignment and Assumption Agreement as of the date first written above.

                                    Informatica Corporation

                                    By:    /s/ Earl E. Fry
                                           -------------------------------------
                                    Name:  Earl E. Fry
                                           -------------------------------------
                                    Title: Sr. VP and CFO
                                           -------------------------------------

                                    PricewaterhouseCoopers LLP

                                    By:    /s/ Robert R. Glatz
                                           -------------------------------------
                                    Name:  Robert R. Glatz
                                           -------------------------------------
                                    Title: Partner
                                           -------------------------------------

                                       2
<PAGE>   3
EXHIBIT A

Assumed Obligations

All obligations relating to the unperformed balance of the License Agreement
between PwC and Western Digital Corporation dated December 7, 1999 to the extent
such obligations are applicable to periods subsequent to the Closing Date, other
than PwC's indemnification obligations under Section 4 of the License Agreement
with respect to the named users authorized by PwC prior to Closing.

                                       3<PAGE>   1
                                                                   EXHIBIT 10.20

                             INFORMATICA CORPORATION

                          REGISTRATION RIGHTS AGREEMENT

        This Registration Rights Agreement (the "Agreement") is entered into as
of the 3rd day of April, 2000, by and between Informatica Corporation, a
Delaware corporation (the "Company"), and PricewaterhouseCoopers LLP, a
registered Delaware limited liability partnership ("PwC").

                                    RECITALS

        1. The Company and PwC have entered into or are simultaneously with the
execution of this Agreement entering into an Intellectual Property Transfer and
Consulting Services Agreement (the "IP Transfer Agreement").

        2. Pursuant to the IP Transfer Agreement, the Company will issue to PwC
409,138 shares of Informatica's Common Stock (the "Shares").

        3. It is a condition to the parties' respective obligations to effect
the closing under the IP Transfer Agreement that they enter into this Agreement.

        NOW, THEREFORE, in consideration of the mutual promises and covenants
herein contained, the parties hereto agree as follows:

        1. CERTAIN DEFINITIONS. As used in this Agreement, the following terms
shall have the following respective meanings:

               (a) "Commission" shall mean the Securities and Exchange
Commission or any other federal agency at the time administering the Securities
Act.

               (b) "Holder" shall mean (i) PwC, to the extent it is holding
Registrable Securities, and (ii) any person holding Registrable Securities to
whom the rights under this Agreement have been transferred in accordance with
Section 2(g) hereof.

               (c) "Registrable Securities" means the Shares and any Common
Stock issued or issuable in respect of the Shares upon any stock split,
dividend, recapitalization, or similar event, or any Common Stock otherwise
issuable with respect to the Shares; provided, however, that the Shares or other
securities shall only be treated as Registrable Securities if and so long as
they have not been (a) sold to or through a broker or dealer or underwriter in a
public distribution or a public securities transaction, or (b) sold in a single
transaction exempt from the registration and prospectus delivery requirements of
the Securities Act, so that all transfer restrictions and restrictive legends
with respect thereto are removed prior to any such sale.

               (d) The terms "register," "registered" and "registration" refer
to a registration effected by preparing and filing a registration statement in
compliance with the Securities Act, and the declaration or ordering of the
effectiveness of such registration statement.

                                       1
<PAGE>   2
               (e) "Registration Expenses" shall mean all expenses, except as
otherwise stated below, incurred by the Company in complying with Section 2(a)
hereof, including, without limitation, all registration, qualification and
filing fees, printing expenses, escrow fees, fees and disbursements of counsel
for the Company, blue sky fees and expenses, and the expense of any special
audits incident to or required by any such registration (but excluding the
compensation of regular employees of the Company, which shall be paid in any
event by the Company).

               (f) "Securities Act" shall mean the Securities Act of 1933, as
amended, or any similar federal statute and the rules and regulations of the
Commission thereunder, all as the same shall be in effect at the time.

               (g) "Securities Exchange Act" shall mean the Securities Exchange
Act of 1934, as amended, or any similar federal statute and the rules and
regulations of the Commission thereunder, all as the same shall be in effect at
the time.

               (h) "Selling Expenses" shall mean all underwriting discounts,
selling commissions and stock transfer taxes applicable to the securities
registered by the Holders and all fees and disbursements of counsel for any
Holder.

        2. REGISTRATION.

               (a) Company Registration.

                      (i) Notice of Registration. If at any time or from time
to time the Company shall determine to register any of its equity securities,
either for its own account or for the account of a security holder or holders,
other than (A) a registration relating solely to employee benefit plans, or (B)
a registration relating solely to a Rule 145 transaction, the Company will:

                             a. promptly give to each Holder written notice
thereof; and

                             b. include in such registration (and any related
qualification under blue sky laws or other compliance), and in any underwriting
involved therein, all the Registrable Securities specified in a written request
or requests, made within thirty (30) days after receipt of such written notice
from the Company by any Holder.

                      (ii) Underwriting. If the registration of which the
Company gives notice is for a registered public offering involving an
underwriting, the Company shall so advise the Holders as a part of the written
notice given pursuant to Section 2(a)(i)a. In such event the right of any Holder
to registration pursuant to Section 2(a) shall be conditioned upon such Holder's
participation in such underwriting, and the inclusion of Registrable Securities
in the underwriting shall be limited to the extent provided herein.

All Holders proposing to distribute their securities through such underwriting
shall (together with the Company and the other holders distributing their
securities through such underwriting) enter into an underwriting agreement in
customary form with the managing underwriter selected for such underwriting by
the Company. Notwithstanding any other provision of this Section 2(a), if the
managing underwriter determines that marketing factors require a limitation of
the number of

                                       2
<PAGE>   3
shares to be underwritten, the managing underwriter may limit the number of the
Registrable Securities to be included in such registration; provided however,
that (x) any such limitation or "cutback" shall be first applied to all shares
proposed to be sold in such offering other than for the account of the Company
which are not Registrable Securities hereunder or under the Company's Second
Amended and Restated Investor Rights Agreement dated as of June 2, 1997 (the
"Investor Rights Agreement"), (y) any such limitation or "cutback" shall then be
applied to all shares proposed to be sold in such offering other than for the
account of the Company which are not Registrable Securities under the Investor
Rights Agreement, and (z) notwithstanding clauses (x) and (y), in no event shall
any shares being sold by a shareholder exercising a demand registration right be
excluded from such offering. The Company shall so advise all Holders and other
holders distributing their securities through such underwriting, and the number
of shares of Registrable Securities or other securities that may be included in
the registration and underwriting shall, subject to the foregoing, be allocated
among all the Holders and other holders in proportion, as nearly as practicable,
to the respective amounts of Registrable Securities and other securities to be
included in such registration held by such Holders and other holders at the time
of filing of a registration statement. To facilitate the allocation of shares in
accordance with the above provisions, the Company may round the number of shares
allocated to any Holder or holder to the nearest 100 shares.

If the Holders desire to have Registrable Securities included in a registration
pursuant to this Section 2(a) for which the registration statement is filed
within the one-year period following the date of this Agreement, and if as a
result of the operation of the foregoing allocation priorities less than 81,828
shares of Registrable Securities (as adjusted for stock splits, stock dividends
and other recapitalizations) are included therein, then, at the request of the
Holders, the Company will, at the time its effects the foregoing registration,
also register for the Holders a number of shares of Registrable Securities such
that the total number of Registrable Securities registered for the Holders
equals at least 81,828 shares (as adjusted as provided above). Any limitations
or conditions applicable to the registration initiated by the Company under this
Section 2(a) shall apply to the foregoing registration for the Holders. In the
event the Company terminates or withdraws the registration initiated by it under
this Section 2(a) in accordance with clause (iii) below, the Company shall have
the right to terminate or withdraw the foregoing registration for the Holders.

If any Holder disapproves of the terms of any such underwriting, he may elect to
withdraw therefrom by written notice to the Company and the managing
underwriter. Any securities excluded or withdrawn from such underwriting shall
be withdrawn from such registration, and shall not be transferred in a public
distribution prior to 180 days after the effective date of the registration
statement thereto, or such other shorter period of time as the underwriters may
require.

                      (iii) Right to Terminate Registration. The Company shall
have the right to terminate or withdraw any registration initiated by it under
this Section 2(a) prior to the effectiveness of such registration whether or not
any Holder has elected to include securities in such registration.

               (b) Expenses of Registration. All Registration Expenses incurred
in connection with all registrations pursuant to Section 2(a) shall be borne by
the Company. All

                                       3
<PAGE>   4
Selling Expenses relating to securities registered on behalf of the Holders
hereunder shall be borne by the Holders pro rata on the basis of the number of
shares so registered.

               (c) Registration Procedures. In the case of each registration,
qualification or compliance effected by the Company pursuant to this Agreement,
the Company will keep each Holder advised in writing as to the initiation of
each registration, qualification and compliance and as to the completion
thereof. At its expense the Company will:

                      (i) Prepare and file with the Commission a registration
statement with respect to such securities and use its best efforts to cause such
registration statement to become and remain effective for at least one hundred
twenty (180) days or until the distribution described in the registration
statement has been completed, whichever first occurs; and

                      (ii) Furnish to the Holders participating in such
registration and to the underwriters of the securities being registered such
reasonable number of copies of the registration statement, preliminary
prospectus, final prospectus and such other documents as such Holders and
underwriters may reasonably request in order to facilitate the public offering
of such securities.

                      (iii) Use its best efforts to register and qualify the
securities covered by such registration statement under such other securities or
Blue Sky laws of such jurisdictions as shall be reasonably requested by the
Holders, provided that the Company shall not be required in connection therewith
or as a condition thereto to qualify to do business or to file a general consent
to service of process in any such states or jurisdictions.

                      (iv) In the event of any underwritten public offering,
enter into and perform its obligations under an underwriting agreement, in usual
and customary form, with the managing underwriter of such offering. Each Holder
participating in such underwriting shall also enter into and perform its
obligations under such an agreement.

                      (v) Notify each Holder of Registrable Securities covered
by such registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act of the happening of any event
as a result of which the prospectus included in such registration statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in the light of the circumstances then
existing.

               (d) Indemnification.

                      (i) The Company will indemnify each Holder of Registrable
Securities included in a registration pursuant to this Agreement, each of its
officers and directors and partners, and each person controlling such Holder
within the meaning of Section 15 of the Securities Act, with respect to which
registration, qualification or compliance has been effected pursuant to this
Agreement, and each underwriter, if any, and each person who controls any
underwriter within the meaning of Section 15 of the Securities Act, against all
expenses, claims, losses, damages or liabilities (or actions in respect
thereof), including any of the foregoing incurred in settlement of any
litigation, commenced or threatened, arising out of or based on any untrue
statement (or alleged untrue statement) of a material fact contained in any
registration statement, prospectus, offering circular or other document, or any
amendment or supplement

                                       4
<PAGE>   5
thereto, incident to any such registration, qualification or compliance, or
based on any omission (or alleged omission) to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading, or any violation by the Company of the Securities Act, the
Securities Exchange Act, state securities law or any rule or regulation
promulgated under the such laws applicable to the Company in connection with any
such registration, qualification or compliance, and the Company will reimburse
each such Holder, each of its officers, directors and partners, and each person
controlling such Holder, each such underwriter and each person who controls any
such underwriter, for any legal and any other expenses reasonably incurred, as
such expenses are incurred, in connection with investigating, preparing or
defending any such claim, loss, damage, liability or action, provided that the
Company will not be liable in any such case to the extent that any such claim,
loss, damage, liability or expense arises out of or is based on any untrue
statement or omission or alleged untrue statement or omission, made in reliance
upon and in conformity with written information furnished to the Company by an
instrument duly executed by any Holder, controlling person or underwriter and
stated to be specifically for use therein; provided, however, that the foregoing
indemnity agreement is subject to the condition that, insofar as it relates to
any such untrue statement, alleged untrue statement, omission or alleged
omission made in a preliminary prospectus, such indemnity agreement shall not
inure to the benefit of any underwriter, or any Holder, if there is no
underwriter, if a copy of the final prospectus filed with the Commission
pursuant to its Rule 424(b) was not furnished to the person asserting the loss,
liability, claim or damage at or prior to the time such action is required by
the Securities Act, and if such final prospectus cured the untrue statement,
alleged untrue statement, omission of alleged omission giving rise to the loss,
liability, claim or damage.

                      (ii) Each Holder will, if Registrable Securities held by
such Holder are included in the securities as to which such registration,
qualification or compliance is being effected, indemnify the Company, each of
its directors and officers, each underwriter, if any, of the Company's
securities covered by such registration statement, each person who controls the
Company or such underwriter within the meaning of Section 15 of the Securities
Act, and each other such Holder, each of its officers, directors and partners
and each person controlling such Holder within the meaning of Section 15 of the
Securities Act, against all expenses, claims, losses, damages and liabilities
(or actions in respect thereof) arising out of or based on any untrue statement
(or alleged untrue statement) of a material fact contained in any such
registration statement, prospectus, offering circular or other document, or any
omission (or alleged omission) to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading, and
will reimburse the Company, such Holders, such directors, officers, partners,
persons, underwriters or control persons for any legal or any other expenses
reasonably incurred, as such expenses are incurred, in connection with
investigating, preparing or defending any such claim, loss, damage, liability or
action, in each case to the extent, but only to the extent, that such untrue
statement (or alleged untrue statement) or omission (or alleged omission) is
made in such registration statement, prospectus, offering circular or other
document in reliance upon and in conformity with written information furnished
to the Company by an instrument duly executed by such Holder and stated to be
specifically for use therein. Notwithstanding the foregoing, the liability of
each Holder under this Section 2(d)(ii) shall be limited in an amount equal to
the net proceeds of the shares sold by such Holder, unless such liability arises
out of or is based on willful misconduct by such Holder. In no event will any
Holder be required to enter into any agreement or undertaking for the benefit of
the Company in connection with any registration under this Section 2 providing
for any

                                       5
<PAGE>   6
indemnification or contribution obligations on the part of such Holder greater
than such Holder's obligations under this Section 2(d)(ii).

                      (iii) Each party entitled to indemnification under this
Section 2(d) (the "Indemnified Party") shall give notice to the party required
to provide indemnification (the "Indemnifying Party") promptly after such
Indemnified Party has actual knowledge of any claim as to which indemnity may be
sought, and shall permit the Indemnifying Party to assume the defense of any
such claim or any litigation resulting therefrom, provided that counsel for the
Indemnifying Party, who shall conduct the defense of such claim or litigation,
shall be approved by the Indemnified Party (whose approval shall not be
unreasonably withheld), and the Indemnified Party may participate in such
defense at such party's expense, and provided further that the failure of any
Indemnified Party to give notice as provided herein shall not relieve the
Indemnifying Party of its obligations under this Agreement unless the failure to
give such notice is materially prejudicial to an Indemnifying Party's ability to
defend such action, and provided further that the Indemnifying Party shall not
assume the defense for matters as to which representation of both the
Indemnifying Party and the Indemnified Party by the same counsel would be
inappropriate due to actual or potential differing interests between them, but
shall instead in such event pay the fees and costs of separate counsel for the
Indemnified Party. No Indemnifying Party, in the defense of any such claim or
litigation, shall, except with the consent of each Indemnified Party, consent to
entry of any judgment or enter into any settlement which does not include as an
unconditional term thereof the giving by the claimant or plaintiff to such
Indemnified Party of a release from all liability in respect to such claim or
litigation.

               (e) Information by Holder. The Holder or Holders of Registrable
Securities included in any registration shall furnish to the Company such
information regarding such Holder or Holders, the Registrable Securities held by
them and the distribution proposed by such Holder or Holders as the Company may
request in writing and as shall be required in connection with any registration,
qualification or compliance referred to in this Agreement.

               (f) Rule 144 Reporting. With a view to making available the
benefits of certain rules and regulations of the Commission which may at any
time permit the sale of the Restricted Securities to the public without
registration, after such time as a public market exists for the Common Stock of
the Company, the Company agrees to use its best efforts to:

                      (i) Make and keep public information available, as those
terms are understood and defined in Rule 144, at all times after the effective
date that the Company becomes subject to the reporting requirements of the
Securities Act or the Securities Exchange Act;

                      (ii) File with the Commission in a timely manner all
reports and other documents required of the Company under the Securities Act and
the Securities Exchange Act (at any time after it has become subject to such
reporting requirements); and

                      (iii) So long as a Holder owns any Restricted Securities
to furnish to such Holder forthwith upon request a written statement by the
Company as to its compliance with the reporting requirements of said Rule 144
(at any time after 90 days after the effective date of the first registration
statement filed by the Company for an offering of its securities to the general
public) and of the Securities Act and the Securities Exchange Act (at any time
after it has

                                       6
<PAGE>   7
become subject to such reporting requirements), a copy of the most recent annual
or quarterly report of the Company, and such other reports and documents of the
Company and other information in the possession of or reasonably obtainable by
the Company as the Holder may reasonably request in availing itself of any rule
or regulation of the Commission allowing the Holder to sell any such securities
without registration.

               (g) Transfer of Registration Rights. The rights to cause the
Company to register securities granted under Section 2(a) may be assigned to a
transferee or assignee in connection with any transfer or assignment of
Registrable Securities provided that: (i) such transfer may otherwise be
effected in accordance with applicable securities laws, (ii) such assignee or
transferee acquires at least 200,000 shares of Registrable Securities held by
the assignor or transferor (appropriately adjusted for recapitalizations, stock
splits and the like), provided that the foregoing minimum share amount shall not
apply to a single transfer by PwC to Concept Information Systems, Inc., (iii)
written notice is promptly given to the Company and (iv) such transferee agrees
to be bound by the provisions of this Agreement. Notwithstanding the foregoing,
the rights to cause the Company to register securities may be assigned to any
affiliated partnership or constituent partner or retired partner of PwC,
provided written notice thereof is promptly given to the Company and the
transferee agrees to be bound by the provisions of this Agreement.

               (h) Termination of Registration Rights. The rights granted
pursuant to Section 2(a) of this Agreement shall terminate as to any Holder at
such time as such Holder (i) can sell all of his Registrable Securities pursuant
to Rule 144(k) promulgated under the Securities Act or (ii) can sell all of his
Registrable Securities pursuant to Rule 144 in any single ninety (90) day
period. The rights granted pursuant to Section 2(a) of this Agreement shall in
any event terminate as to all Holders on April 28, 2004.

        3. AMENDMENT. Any provision of this Agreement may be amended or the
observance thereof may be waived (either generally or in a particular instance
and either retroactively or prospectively), only with the written consent of the
Company and the holders of a majority of the Registrable Securities then
outstanding. Any amendment or waiver effected in accordance with this Section 3
shall be binding upon each Holder of Registrable Securities at the time
outstanding, each future holder of all such securities, and the Company.

        4. GOVERNING LAW. This Agreement and the legal relations between the
parties arising hereunder shall be governed by and interpreted in accordance
with the laws of the State of California. The parties hereto agree to submit to
the jurisdiction of the federal and state courts of the State of California with
respect to the breach or interpretation of this Agreement or the enforcement of
any and all rights, duties, liabilities, obligations, powers, and other
relations between the parties arising under this Agreement.

        5. ENTIRE AGREEMENT. This Agreement constitutes the full and entire
understanding and agreement between the parties regarding the matters set forth
herein. Except as otherwise expressly provided herein, the provisions hereof
shall inure to the benefit of, and be binding upon the successors, assigns,
heirs, executors and administrators of the parties hereto.

        6. NOTICES, ETC. All notices and other communications required or
permitted hereunder shall be in writing and shall be deemed effectively given
upon personal delivery to the

                                       7
<PAGE>   8
party to be notified or three (3) days after deposit with the United States
mail, by registered or certified mail, postage prepaid, addressed (a) if to PwC,
at its address as set forth in the IP Transfer Agreement, or at such other
address as PwC shall have furnished to the Company in writing in accordance with
this Section 6, (b) if to any other Holder, at such address as such Holder shall
have furnished the Company in writing in accordance with this Section 6, or,
until any such Holder so furnishes an address to the Company, then to and at the
address of the last Holder thereof who has so furnished an address to the
Company, or (c) if to the Company, at its principal office.

        7. ATTORNEYS' FEES. In the event that any suit or action is instituted
to enforce any provision in this Agreement, the prevailing party shall be
entitled to all costs and expenses of maintaining such suit or action, including
reasonable attorney's fees.

        8. COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which shall be an original, but all of which together
shall constitute one instrument.

        The foregoing agreement is hereby executed as of the date first above
written.

INFORMATICA CORPORATION                   PRICEWATERHOUSECOOPERS LLP

By:    /s/ Diaz Nesamoney                 By:     /s/ Robert A. Glatz
       ----------------------------               ------------------------------
Name:  Diaz Nesamoney                     Name:   Robert A. Glatz
       ----------------------------               ------------------------------
Title: President & COO                    Title:  Partner
       ----------------------------               ------------------------------

                                       8

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00013-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00013-of-00352.parquet"}]]