gooderp18绿色标准版
Ви не можете вибрати більше 25 тем Теми мають розпочинатися з літери або цифри, можуть містити дефіси (-) і не повинні перевищувати 35 символів.

18 lines
3.7KB

  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>
  2. <!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_cursor_move</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-fetch.html" title="SPI_cursor_fetch" /><link rel="next" href="spi-spi-scroll-cursor-fetch.html" title="SPI_scroll_cursor_fetch" /></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_cursor_move</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="spi-spi-cursor-fetch.html" title="SPI_cursor_fetch">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-fetch.html" title="SPI_scroll_cursor_fetch">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SPI-SPI-CURSOR-MOVE"><div class="titlepage"></div><a id="id-1.8.12.8.21.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">SPI_cursor_move</span></h2><p>SPI_cursor_move — move a cursor</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
  3. void SPI_cursor_move(Portal <em class="parameter"><code>portal</code></em>, bool <em class="parameter"><code>forward</code></em>, long <em class="parameter"><code>count</code></em>)
  4. </pre></div><div class="refsect1" id="id-1.8.12.8.21.5"><h2>Description</h2><p>
  5. <code class="function">SPI_cursor_move</code> skips over some number of rows
  6. in a cursor. This is equivalent to a subset of the SQL command
  7. <code class="command">MOVE</code> (see <code class="function">SPI_scroll_cursor_move</code>
  8. for more functionality).
  9. </p></div><div class="refsect1" id="id-1.8.12.8.21.6"><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>
  10. portal containing the cursor
  11. </p></dd><dt><span class="term"><code class="literal">bool <em class="parameter"><code>forward</code></em></code></span></dt><dd><p>
  12. true for move forward, false for move backward
  13. </p></dd><dt><span class="term"><code class="literal">long <em class="parameter"><code>count</code></em></code></span></dt><dd><p>
  14. maximum number of rows to move
  15. </p></dd></dl></div></div><div class="refsect1" id="id-1.8.12.8.21.7"><h2>Notes</h2><p>
  16. Moving backward may fail if the cursor's plan was not created
  17. with the <code class="symbol">CURSOR_OPT_SCROLL</code> option.
  18. </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-fetch.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-fetch.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">SPI_cursor_fetch </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_fetch</td></tr></table></div></body></html>
上海开阖软件有限公司 沪ICP备12045867号-1