<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

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    <periodOfReport>2006-03-08</periodOfReport>

    <issuer>
        <issuerCik>0001034088</issuerCik>
        <issuerName>ECLIPSYS CORP</issuerName>
        <issuerTradingSymbol>ECLP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001193340</rptOwnerCik>
            <rptOwnerName>DENNING STEVEN A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>GENERAL ATLANTIC SERVICE COMPANY, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>3 PICKWICK PLAZA</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

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        <nonDerivativeTransaction>
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                <value>Common Stock</value>
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                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
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                <value>Common Stock</value>
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            <transactionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>17044</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>23.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5543511</value>
                    <footnoteId id="F9"/>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-03-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>313966</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>23.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See</value>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-03-08</value>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>31206</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>23.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                    <value>5543511</value>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See</value>
                    <footnoteId id="F8"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-03-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F10"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F10"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                    <value>5543511</value>
                    <footnoteId id="F9"/>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
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    <footnotes>
        <footnote id="F1">By General Atlantic Partners 28, L.P. (&quot;GAP 28&quot;).  See footnote 9.</footnote>
        <footnote id="F2">By General Atlantic Partners 38, L.P. (&quot;GAP 38&quot;).  See footnote 9.</footnote>
        <footnote id="F3">By General Atlantic Partners 47, L.P. (&quot;GAP 47&quot;).  See footnote 9.</footnote>
        <footnote id="F4">By General Atlantic Partners 48, L.P. (&quot;GAP 48&quot;).  See footnote 9.</footnote>
        <footnote id="F5">By General Atlantic Partners 74, L.P. (&quot;GAP 74&quot;).  See footnote 9.</footnote>
        <footnote id="F6">By GapStar, LLC (&quot;GapStar&quot;).  See footnote 9.</footnote>
        <footnote id="F7">By GAP Coinvestment Partners, L.P. (&quot;GAPCO&quot;).  See footnote 9.</footnote>
        <footnote id="F8">By GAP Coinvestment Partners II, L.P. (&quot;GAPCO II&quot;).  See footnote 9.</footnote>
        <footnote id="F9">5,543,511 shares of common stock includes 753,631 shares owned by GAP 28, 2,655,091 shares owned by GAP 38, 361,311 shares owned by GAP 47, 289,152 shares owned by GAP 48, 564,644 shares owned by GAP 74, 42,956 shares owned by GapStar, 798,078 shares owned by GAPCO and 78,648 shares owned by GAPCO II.  General Atlantic LLC (&quot;GA LLC&quot;) is the general partner of GAP 28, GAP 38, GAP 47, GAP 48 and GAP 74.  GA LLC is also the sole member of GapStar.  The general partners of GAPCO and GAPCO II are Managing Directors of GA LLC.  Mr. Denning is Chairman and a Managing Director of GA LLC, and a general partner of GAPCO and GAPCO II.  Mr. Denning disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F10">Pro rata distribution of shares of Common Stock to limited partner.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Steven A. Denning</signatureName>
        <signatureDate>2006-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
