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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FMNFY5fot4Gh96m/BY4ektk1ajqmaULHR7TIdliIDL0wP3JClqbg2akU+3DU1O7X
 y1OXBthfQdH10wzs2dhW8w==

<SEC-DOCUMENT>0001181431-10-011317.txt : 20100223
<SEC-HEADER>0001181431-10-011317.hdr.sgml : 20100223
<ACCEPTANCE-DATETIME>20100223171113
ACCESSION NUMBER:		0001181431-10-011317
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100219
FILED AS OF DATE:		20100223
DATE AS OF CHANGE:		20100223

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Fair Robert
		CENTRAL INDEX KEY:			0001410633

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33458
		FILM NUMBER:		10627294

	MAIL ADDRESS:	
		STREET 1:		2835 MIAMI VILLAGE DR
		CITY:			DAYTON
		STATE:			OH
		ZIP:			45342

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TERADATA CORP /DE/
		CENTRAL INDEX KEY:			0000816761
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPUTERS [3571]
		IRS NUMBER:				753236470
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2835 MIAMI VILLAGE DR
		CITY:			DAYTON
		STATE:			OH
		ZIP:			45342
		BUSINESS PHONE:		937-242-4800

	MAIL ADDRESS:	
		STREET 1:		2835 MIAMI VILLAGE DR
		CITY:			DAYTON
		STATE:			OH
		ZIP:			45342
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd266792.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-02-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000816761</issuerCik>
        <issuerName>TERADATA CORP /DE/</issuerName>
        <issuerTradingSymbol>TDC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001410633</rptOwnerCik>
            <rptOwnerName>Fair Robert</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2835 MIAMI VILLAGE DR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DAYTON</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>45342</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, Global Field Operations</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-02-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1646</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>28.72</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>42972</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares withheld by the company to satisfy tax obligation upon vesting of a performance-based restricted stock unit award that was granted on March 1, 2007.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Margaret A. Treese, Attorney-in-fact for Robert Fair</signatureName>
        <signatureDate>2010-02-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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