-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001335064-06-000001.txt : 20060601
<SEC-HEADER>0001335064-06-000001.hdr.sgml : 20060601
<ACCEPTANCE-DATETIME>20060601134920
ACCESSION NUMBER:		0001335064-06-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060531
FILED AS OF DATE:		20060601
DATE AS OF CHANGE:		20060601

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ORACLE CORP
		CENTRAL INDEX KEY:			0001341439
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				542185193

	BUSINESS ADDRESS:	
		STREET 1:		500 ORACLE PARKWAY
		STREET 2:		MAIL STOP 5 OP 7
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065
		BUSINESS PHONE:		6505067000

	MAIL ADDRESS:	
		STREET 1:		500 ORACLE PARKWAY
		STREET 2:		MAIL STOP 5 OP 7
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Ozark Holding Inc.
		DATE OF NAME CHANGE:	20051013

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BERG JEFFREY
		CENTRAL INDEX KEY:			0001206104

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51788
		FILM NUMBER:		06879470

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		7756893411

	MAIL ADDRESS:	
		STREET 1:		C/O DELPHI ASSET MGMT. CORP
		STREET 2:		6005 PLUMAS STREET, SUITE 202
		CITY:			RENO
		STATE:			NV
		ZIP:			89509
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-05-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001341439</issuerCik>
        <issuerName>ORACLE CORP</issuerName>
        <issuerTradingSymbol>ORCL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001206104</rptOwnerCik>
            <rptOwnerName>BERG JEFFREY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O DELPHI ASSET MGMT. CORP</rptOwnerStreet1>
            <rptOwnerStreet2>6005 PLUMAS STREET, SUITE 202</rptOwnerStreet2>
            <rptOwnerCity>RENO</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89509</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>14.02</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-05-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>30000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-05-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>30000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Option vests 25% annually on anniversary of grant date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Barbara R. Wallace by Barbara R. Wallace, Attorney in Fact For:  Jeffrey Berg (POA filed 5/28/03)</signatureName>
        <signatureDate>2006-06-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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