📄 function.maxdb-affected-rows.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Gets the number of affected rows in a previous MaxDB operation</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.maxdb.html">MaxDB Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.maxdb-autocommit.html">maxdb_autocommit</a></div> <div class="up"><a href="ref.maxdb.html">MaxDB Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.maxdb-affected-rows" class="refentry"> <div class="refnamediv"> <h1 class="refname">maxdb_affected_rows</h1> <h1 class="refname">maxdb->affected_rows</h1> <p class="verinfo">(PECL maxdb:1.0-7.6.00.38)</p><p class="refpurpose"><span class="refname">maxdb_affected_rows</span> -- <span class="refname">maxdb->affected_rows</span> — <span class="dc-title">Gets the number of affected rows in a previous MaxDB operation</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <p class="para">Procedural style:</p> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><b><b>maxdb_affected_rows</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$link</tt></span> )</div> <p class="para rdfs-comment">Object oriented style (property):</p> <div class="classsynopsis"> <div class="ooclass"><b class="classname">maxdb</b></div> <div class="fieldsynopsis"><span class="type">int</span> <var class="varname">$affected_rows</var>;</div> </div> <p class="para"> <b>maxdb_affected_rows()</b> returns the number of rows affected by the last INSERT, UPDATE, or DELETE query associated with the provided <i><tt class="parameter">link</tt></i> parameter. If this number cannot be determined, this function will return -1. </p> <blockquote><p><b class="note">Note</b>: For SELECT statements <b>maxdb_affected_rows()</b> works like <a href="function.maxdb-num-rows.html" class="function">maxdb_num_rows()</a>. <br /> </p></blockquote> <p class="para"> The <b>maxdb_affected_rows()</b> function only works with queries which modify a table. In order to return the number of rows from a SELECT query, use the <a href="function.maxdb-num-rows.html" class="function">maxdb_num_rows()</a> function instead. </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> An integer greater than zero indicates the number of rows affected or retrieved. Zero indicates that no records where updated for an UPDATE statement, no rows matched the WHERE clause in the query or that no query has yet been executed.⌨️ 快捷键说明
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