117 lines
6.8 KiB
HTML
117 lines
6.8 KiB
HTML
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<title>SQLGetEnvAttr</title>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">SQLGetEnvAttr - Return current setting of an environment
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Attribute</h1>
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<div><div class="section"></div>
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<div class="section"><h4 class="sectiontitle">Purpose</h4> <p><samp class="codeph">SQLGetEnvAttr()</samp> returns
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the current settings for the specified environment attribute.</p>
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<p>These
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options are set using the <samp class="codeph">SQLSetEnvAttr()</samp> function.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Syntax</h4><pre>SQLRETURN SQLGetEnvAttr (SQLHENV henv,
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SQLINTEGER Attribute,
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SQLPOINTER Value,
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SQLINTEGER BufferLength,
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SQLINTEGER *StringLength);</pre>
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</div>
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<div class="section"><h4 class="sectiontitle">Function arguments</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="1" rules="all"><caption>Table 1. SQLGetEnvAttr arguments</caption><thead align="left"><tr><th align="left" valign="top" width="20%" id="d0e53">Data type</th>
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<th align="left" valign="top" width="20%" id="d0e55">Argument</th>
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<th align="left" valign="top" width="20%" id="d0e57">Use</th>
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<th align="left" valign="top" width="40%" id="d0e59">Description</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="20%" headers="d0e53 ">SQLHENV</td>
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<td align="left" valign="top" width="20%" headers="d0e55 "><em>henv</em></td>
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<td align="left" valign="top" width="20%" headers="d0e57 ">Input</td>
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<td align="left" valign="top" width="40%" headers="d0e59 ">Environment handle.</td>
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</tr>
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<tr><td align="left" valign="top" width="20%" headers="d0e53 ">SQLINTEGER *</td>
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<td align="left" valign="top" width="20%" headers="d0e55 "><em>StringLength</em></td>
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<td align="left" valign="top" width="20%" headers="d0e57 ">Output</td>
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<td align="left" valign="top" width="40%" headers="d0e59 ">Length in bytes of the output data if the
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attribute value is a character string; otherwise, unused.</td>
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</tr>
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<tr><td align="left" valign="top" width="20%" headers="d0e53 ">SQLINTEGER</td>
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<td align="left" valign="top" width="20%" headers="d0e55 "><em>Attribute</em></td>
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<td align="left" valign="top" width="20%" headers="d0e57 ">Input</td>
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<td align="left" valign="top" width="40%" headers="d0e59 ">Attribute to retrieve. Refer to <a href="rzadpfnsenva.htm#rzadpfnsenva__tbenva">Table 2</a> for
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more information.</td>
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</tr>
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<tr><td align="left" valign="top" width="20%" headers="d0e53 ">SQLINTEGER</td>
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<td align="left" valign="top" width="20%" headers="d0e55 "><em>BufferLength</em></td>
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<td align="left" valign="top" width="20%" headers="d0e57 ">Input</td>
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<td align="left" valign="top" width="40%" headers="d0e59 ">Maximum size of buffer pointed to by <em>Value</em>,
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if the attribute value is a character string; otherwise, unused.</td>
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</tr>
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<tr><td align="left" valign="top" width="20%" headers="d0e53 ">SQLPOINTER</td>
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<td align="left" valign="top" width="20%" headers="d0e55 "><em>Value</em></td>
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<td align="left" valign="top" width="20%" headers="d0e57 ">Output</td>
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<td align="left" valign="top" width="40%" headers="d0e59 ">Current value associated with <em>Attribute</em>.
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The type of the value returned depends on <em>Attribute</em>.</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>If <em>Attribute</em> does not denote a string, then DB2<sup>®</sup> UDB CLI ignores <em>BufferLength</em> and
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does not set <em>StringLength</em>.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Usage</h4><p><samp class="codeph">SQLGetEnvAttr()</samp> can be called
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at any time between the allocation and freeing of the environment handle.
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It obtains the current value of the environment attribute.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Diagnostics</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="1" rules="rows"><caption>Table 2. SQLGetEnvAttr SQLSTATEs</caption><thead align="left"><tr><th align="left" valign="top" width="25%" id="d0e159">SQLSTATE</th>
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<th align="left" valign="top" width="25%" id="d0e161">Description</th>
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<th align="left" valign="top" width="50%" id="d0e163">Explanation</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="25%" headers="d0e159 "><strong>HY</strong>001</td>
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<td align="left" valign="top" width="25%" headers="d0e161 ">Memory allocation failure</td>
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<td align="left" valign="top" width="50%" headers="d0e163 ">The driver is unable to allocate memory required
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to support the processing or completion of the function.</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e159 "><strong>HY</strong>009</td>
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<td align="left" valign="top" width="25%" headers="d0e161 ">Attribute out of range</td>
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<td align="left" valign="top" width="50%" headers="d0e163 ">An <em>Attribute</em> value that is not valid
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is specified. <p>The argument <em>Value</em> or <em>StringLength</em> is a null
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pointer.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzadphdapi.htm" title="This topic provides a description of each CLI function.">DB2 UDB CLI functions</a></div>
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</div>
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</div>
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</body>
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