FORM 3
        	UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES
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                      	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	                      	

1. Name and Address of Reporting Person *

Blanton Rocky	2. Date of Event Requiring Statement (MM/DD/YYYY)
1/1/2013 
	3. Issuer Name and Ticker or Trading Symbol

TERADATA CORP /DE/ [TDC]	
(Last)        (First)        (Middle)

11695 JOHNS CREEK PARKWAY	4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                            _____ 10% Owner
___ X ___ Officer (give title below)          _____ Other (specify below)
EVP, Americas /	
(Street)

JOHNS CREEK, GA 30097       

(City)              (State)              (Zip)	5. If Amendment, Date Original Filed (MM/DD/YYYY)

	6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person	

Table I - Non-Derivative Securities Beneficially Owned	
1.Title of Security
(Instr. 4)	2. Amount of Securities Beneficially Owned
(Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)	4. Nature of Indirect Beneficial Ownership
(Instr. 5)	
Common Stock  	19609  	D  	 	
Common Stock  	11858  	I  	By 401(k) Plan  	

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)	
1. Title of Derivate Security
(Instr. 4)	2. Date Exercisable and Expiration Date
(MM/DD/YYYY)	3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)	6. Nature of Indirect Beneficial Ownership
(Instr. 5)	
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares				
Employee Stock Options  	  (1)	11/26/2022  	Common Stock  	26122  	$61.55  	D  	 	
Employee Stock Options  	  (2)	11/28/2021  	Common Stock  	23405  	$50.70  	D  	 	
Employee Stock Options  	  (3)	11/29/2020  	Common Stock  	24435  	$41.09  	D  	 	
Employee Stock Options  	  (4)	11/30/2019  	Common Stock  	18651  	$30.68  	D  	 	
Employee Stock Options  	  (5)	12/1/2018  	Common Stock  	31554  	$13.77  	D  	 	

Explanation of Responses:	
(  1) 	This option vests in four equal annual installments beginning on November 27, 2013.	
(  2) 	This option vests in four equal annual installments beginning on November 29, 2012.	
(  3) 	This option vests in four equal annual installments beginning on November 30, 2011.	
(  4) 	This option vests in four equal annual installments beginning on December 1, 2010.	
(  5) 	This option is fully exercisable.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Blanton Rocky
11695 JOHNS CREEK PARKWAY
JOHNS CREEK, GA 30097			EVP, Americas		

Signatures		
Laura K. Nyquist, Attorney-in-fact for Rocky Blanton		1/9/2013	
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).	
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).	
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.	

POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints each of Laura K. Nyquist and Margaret A. Treese, signing singly,
the undersigned's true and lawful attorney-in-fact to:

(1)     execute for and on behalf of the undersigned, in the undersigned's
capacity as an officer and/or director of Teradata Corporation
(the "Company"), Forms 3, 4, and 5 (and any amendments thereto) in
accordance with Section 16(a) of the Securities Exchange Act of 1934,
as amended (the "Exchange Act") and the rules thereunder;
(2)     do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such Form 3, 4,
or 5, complete and execute any amendments thereto, and timely file such form
with the United States Securities and Exchange Commission (the "SEC") and any
securities exchange or similar authority, including without limitation the
filing of a Form ID or any other documents necessary or appropriate to enable
the undersigned to file the Forms 3, 4 and 5 electronically with the SEC; and
(3)     take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve
in such attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact,
or such attorney-in-fact's substitute or substitutes, shall lawfully do or
cause to be done by virtue of this power of attorney and the rights and powers
herein granted.  The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request and on behalf of
the undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with, or any liability for the failure
to comply with, any provision of Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to
the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 26th day of December, 2012.

Signed and acknowleged:

/s/ Rocky J. Blanton
Signature

Rocky J. Blanton
Printed Name