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- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>SPI_scroll_cursor_fetch</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /><link rel="prev" href="spi-spi-cursor-move.html" title="SPI_cursor_move" /><link rel="next" href="spi-spi-scroll-cursor-move.html" title="SPI_scroll_cursor_move" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">SPI_scroll_cursor_fetch</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="spi-spi-cursor-move.html" title="SPI_cursor_move">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="spi-interface.html" title="46.1. Interface Functions">Up</a></td><th width="60%" align="center">46.1. Interface Functions</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 12.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="spi-spi-scroll-cursor-move.html" title="SPI_scroll_cursor_move">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SPI-SPI-SCROLL-CURSOR-FETCH"><div class="titlepage"></div><a id="id-1.8.12.8.22.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">SPI_scroll_cursor_fetch</span></h2><p>SPI_scroll_cursor_fetch — fetch some rows from a cursor</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
- void SPI_scroll_cursor_fetch(Portal <em class="parameter"><code>portal</code></em>, FetchDirection <em class="parameter"><code>direction</code></em>,
- long <em class="parameter"><code>count</code></em>)
- </pre></div><div class="refsect1" id="id-1.8.12.8.22.5"><h2>Description</h2><p>
- <code class="function">SPI_scroll_cursor_fetch</code> fetches some rows from a
- cursor. This is equivalent to the SQL command <code class="command">FETCH</code>.
- </p></div><div class="refsect1" id="id-1.8.12.8.22.6"><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">Portal <em class="parameter"><code>portal</code></em></code></span></dt><dd><p>
- portal containing the cursor
- </p></dd><dt><span class="term"><code class="literal">FetchDirection <em class="parameter"><code>direction</code></em></code></span></dt><dd><p>
- one of <code class="symbol">FETCH_FORWARD</code>,
- <code class="symbol">FETCH_BACKWARD</code>,
- <code class="symbol">FETCH_ABSOLUTE</code> or
- <code class="symbol">FETCH_RELATIVE</code>
- </p></dd><dt><span class="term"><code class="literal">long <em class="parameter"><code>count</code></em></code></span></dt><dd><p>
- number of rows to fetch for
- <code class="symbol">FETCH_FORWARD</code> or
- <code class="symbol">FETCH_BACKWARD</code>; absolute row number to fetch for
- <code class="symbol">FETCH_ABSOLUTE</code>; or relative row number to fetch for
- <code class="symbol">FETCH_RELATIVE</code>
- </p></dd></dl></div></div><div class="refsect1" id="id-1.8.12.8.22.7"><h2>Return Value</h2><p>
- <code class="varname">SPI_processed</code> and
- <code class="varname">SPI_tuptable</code> are set as in
- <code class="function">SPI_execute</code> if successful.
- </p></div><div class="refsect1" id="id-1.8.12.8.22.8"><h2>Notes</h2><p>
- See the SQL <a class="xref" href="sql-fetch.html" title="FETCH"><span class="refentrytitle">FETCH</span></a> command
- for details of the interpretation of the
- <em class="parameter"><code>direction</code></em> and
- <em class="parameter"><code>count</code></em> parameters.
- </p><p>
- Direction values other than <code class="symbol">FETCH_FORWARD</code>
- may fail if the cursor's plan was not created
- with the <code class="symbol">CURSOR_OPT_SCROLL</code> option.
- </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="spi-spi-cursor-move.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="spi-interface.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="spi-spi-scroll-cursor-move.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">SPI_cursor_move </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> SPI_scroll_cursor_move</td></tr></table></div></body></html>
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