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135 lines
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HTML
135 lines
9.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Retrieves information about the most recently executed query</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.maxdb-info" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">maxdb_info</h1>
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<h1 class="refname">maxdb::info</h1>
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<p class="verinfo">(PECL maxdb >= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_info</span> -- <span class="refname">maxdb::info</span> — <span class="dc-title">Retrieves information about the most recently executed query</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.maxdb-info-description">
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<h3 class="title">说明</h3>
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<p class="para">过程化风格</p>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>maxdb_info</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span>
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) : <span class="type">string</span></div>
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<p class="para rdfs-comment">面向对象风格</p>
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<div class="fieldsynopsis"><span class="type">string</span> <var class="varname">$maxdb->info</var>;</div>
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<p class="para">
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The <span class="function"><strong>maxdb_info()</strong></span> function returns a string providing
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information about the last query executed. The nature of this string is
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provided below:
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</p>
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<p class="para">
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<table class="doctable table">
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<caption><strong>Possible maxdb_info return values</strong></caption>
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<thead>
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<tr>
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<th>Query type</th>
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<th>Example result string</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>INSERT INTO...SELECT...</td>
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<td>Records: 100 Duplicates: 0 Warnings: 0</td>
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</tr>
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<tr>
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<td>INSERT INTO...VALUES (...),(...),(...)</td>
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<td>Records: 3 Duplicates: 0 Warnings: 0</td>
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</tr>
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<tr>
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<td>LOAD DATA INFILE ...</td>
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<td>Records: 1 Deleted: 0 Skipped: 0 Warnings: 0</td>
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</tr>
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<tr>
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<td>ALTER TABLE ...</td>
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<td>Records: 3 Duplicates: 0 Warnings: 0</td>
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</tr>
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<tr>
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<td>UPDATE ...</td>
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<td>Rows matched: 40 Changed: 40 Warnings: 0</td>
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</tr>
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</tbody>
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</table>
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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Queries which do not fall into one of the above formats are not supported.
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In these situations, <span class="function"><strong>maxdb_info()</strong></span> will return an empty string.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.maxdb-info-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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A character string representing additional information about the most recently executed query.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.maxdb-info-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1375">
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<p><strong>Example #1 面向对象风格</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$maxdb </span><span style="color: #007700">= new </span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE TABLE temp.t1 LIKE hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* INSERT INTO .. SELECT */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"INSERT INTO temp.t1 SELECT * FROM hotel.city"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">info</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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<div class="example" id="example-1376">
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<p><strong>Example #2 过程化风格</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"CREATE TABLE temp.t1 LIKE hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* INSERT INTO .. SELECT */<br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"INSERT INTO temp.t1 SELECT * FROM hotel.city"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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<p class="para">以上例程的输出类似于：</p>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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Records: 25 Duplicates: 0 Warnings: 0
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</pre></div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.maxdb-info-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="maxdb_affected_rows.html" class="function" rel="rdfs-seeAlso">maxdb_affected_rows()</a> - Gets the number of affected rows in a previous MaxDB operation</span></li>
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<li class="member"><span class="function"><a href="maxdb_warning_count.html" class="function" rel="rdfs-seeAlso">maxdb_warning_count()</a> - Returns the number of warnings from the last query for the given link</span></li>
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<li class="member"><span class="function"><a href="maxdb_num_rows.html" class="function" rel="rdfs-seeAlso">maxdb_num_rows()</a> - Gets the number of rows in a result</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |