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This help page requires JavaScript to render correctly.</noscript> </head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" /> <meta name="date" content="2009-04-21T9:46:24Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Using a Cursor Variable to Retrieve Result Set Rows One at a Time" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E10766-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="tdddg_subprograms039.htm" title="Previous" type="text/html" /> <link rel="next" href="tdddg_subprograms041.htm" title="Next" type="text/html" /> <title>Using a Cursor Variable to Retrieve Result Set Rows One at a Time</title> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="tdddg_subprograms039.htm"><img width="24" height="24" src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="tdddg_subprograms041.htm"><img width="24" height="24" src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="BABEHCAJ" name="BABEHCAJ"></a><a id="TDDDG99954" name="TDDDG99954"></a></p> <div class="sect2"><!-- infolevel="all" infotype="General" --> <h1>Using a Cursor Variable to Retrieve Result Set Rows One at a Time</h1> <a name="BEGIN" id="BEGIN"></a> <p><a id="sthref488" name="sthref488"></a>The following procedure uses each of the necessary statements in its simplest form, but provides references to their complete syntax.</p> <a id="TDDDG239" name="TDDDG239"></a> <p class="subhead2">To use a cursor variable to retrieve result set rows one at a time:</p> <ol> <li> <p>In the declarative part:</p> <ol> <li> <p>Declare the <code>REF</code> <code>CURSOR</code> type:</p> <pre xml:space="preserve" class="oac_no_warn"> TYPE <span class="italic">cursor_type</span> IS REF CURSOR [ RETURN <code><span class="codeinlineitalic">return_type</span></code> ]; </pre> <p>For complete <code>REF</code> <code>CURSOR</code> type declaration syntax, see <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS01312','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a>.</p> </li> <li> <p>Declare a cursor variable of that type:</p> <pre xml:space="preserve" class="oac_no_warn"> <span class="italic">cursor_variable cursor_type</span>; </pre> <p>For complete cursor variable declaration syntax, see <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS01312','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a>.</p> </li> <li> <p>Declare a record to hold the row returned by the cursor:</p> <pre xml:space="preserve" class="oac_no_warn"> <span class="italic">record_name</span> <code><span class="codeinlineitalic">return_type</span></code>; </pre> <p>For complete information about record declaration syntax, see <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS01338','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a>.</p> </li> </ol> </li> <li> <p>In the executable part:</p> <ol> <li> <p>Open the cursor variable for a specific query:</p> <pre xml:space="preserve" class="oac_no_warn"> OPEN <span class="italic">cursor_variable</span> FOR <span class="italic">query</span>; </pre> <p>For complete information about <code>OPEN</code> <code>FOR</code> statement syntax, see <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS01333','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a>.</p> </li> <li> <p>Fetch rows from the cursor variable (rows from the result set) one at a time, using a <code>LOOP</code> statement that has syntax similar to this:</p> <pre xml:space="preserve" class="oac_no_warn"> LOOP FETCH <span class="italic">cursor_variable</span> INTO <span class="italic">record_name</span>; EXIT WHEN <span class="italic">cursor_variable</span>%NOTFOUND; -- Process row that is in <span class="italic">record_name</span>: <span class="italic">statement</span>; [ <span class="italic">statement</span>; ]... END LOOP; </pre> <p>For complete information about <code>FETCH</code> statement syntax, see <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS01320','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a>.</p> </li> <li> <p>Close the cursor variable:</p> <pre xml:space="preserve" class="oac_no_warn"> CLOSE <span class="italic">cursor_variable</span>; </pre> <p>Alternatively, you can open the cursor variable for another query, which closes it for the current query.</p> <p>For complete information about <code>CLOSE</code> statement syntax, see <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS01305','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a>.</p> </li> </ol> </li> </ol> <div class="helpinfonotealso"> <h2>Related Topics</h2> <p><a href="tdddg_subprograms041.htm#BABBEABD">Tutorial: Using a Cursor Variable to Retrieve Result Set Rows One at a Time</a></p> <p><a href="tdddg_subprograms032.htm#CIHHCJDI">Using Records and Cursors</a></p> </div> </div> <!-- class="sect2" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 1996, 2009, Oracle and/or its affiliates. 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