group__g__long.html

ORACLE编程的好东西,纯C写的OCI封装.很好用,支持数据池.

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          <td class="memname">OCI_EXPORT void* OCI_API OCI_LongGetBuffer           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_o_c_i___long.html">OCI_Long</a> *&nbsp;</td>
          <td class="paramname"> <em>lg</em>          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Return the internal buffer of an <a class="el" href="struct_o_c_i___long.html" title="Oracle Long datatype.">OCI_Long</a> object read from a fetch sequence. 
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<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>lg</em>&nbsp;</td><td>- Long handle </td></tr>
  </table>
</dl>

<p>Definition at line <a class="el" href="long_8c-source.html#l00291">291</a> of file <a class="el" href="long_8c-source.html">long.c</a>.</p>

<p>References <a class="el" href="ocilib__types_8h-source.html#l00439">OCI_Long::buffer</a>.</p>

<p>Referenced by <a class="el" href="group__g__fetch.html#g755a9b07c174feacd05c86e0e44b0ab0">OCI_GetString()</a>.</p>

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<a class="anchor" name="gf7ed15bc901e38b9bc3394f334bf8d4c"></a><!-- doxytag: member="ocilib.h::OCI_LongGetSize" ref="gf7ed15bc901e38b9bc3394f334bf8d4c" args="(OCI_Long *lg)" -->
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          <td class="memname">OCI_EXPORT unsigned int OCI_API OCI_LongGetSize           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_o_c_i___long.html">OCI_Long</a> *&nbsp;</td>
          <td class="paramname"> <em>lg</em>          </td>
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<p>
Return the buffer size of a long object in bytes (OCI_BLONG) or character (OCI_CLONG). 
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<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>lg</em>&nbsp;</td><td>- Long handle </td></tr>
  </table>
</dl>

<p>Definition at line <a class="el" href="long_8c-source.html#l00271">271</a> of file <a class="el" href="long_8c-source.html">long.c</a>.</p>

<p>References <a class="el" href="ocilib__types_8h-source.html#l00434">OCI_Long::size</a>, and <a class="el" href="ocilib__types_8h-source.html#l00435">OCI_Long::type</a>.</p>

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<a class="anchor" name="g69ae3c008a5f540c4d7c6eca502b6898"></a><!-- doxytag: member="ocilib.h::OCI_LongGetType" ref="g69ae3c008a5f540c4d7c6eca502b6898" args="(OCI_Long *lg)" -->
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          <td class="memname">OCI_EXPORT unsigned int OCI_API OCI_LongGetType           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_o_c_i___long.html">OCI_Long</a> *&nbsp;</td>
          <td class="paramname"> <em>lg</em>          </td>
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<p>
Return the type of the given Long object. 
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<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>lg</em>&nbsp;</td><td>- Long handle</td></tr>
  </table>
</dl>
<dl class="note" compact><dt><b>Note:</b></dt><dd>For possibles values, see <a class="el" href="group__g__lob.html#g318f1273603e24b51c3d9e4c29f42685" title="Create a local temporary Lob instance.">OCI_LobCreate()</a></dd></dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>Object type or OCI_UNKNOWN the input handle is NULL </dd></dl>

<p>Definition at line <a class="el" href="long_8c-source.html#l00123">123</a> of file <a class="el" href="long_8c-source.html">long.c</a>.</p>

<p>References <a class="el" href="ocilib__types_8h-source.html#l00435">OCI_Long::type</a>.</p>

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<a class="anchor" name="gd7e0ba53269cc2d5aace557a984c8717"></a><!-- doxytag: member="ocilib.h::OCI_LongRead" ref="gd7e0ba53269cc2d5aace557a984c8717" args="(OCI_Long *lg, void *buffer, unsigned int len)" -->
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          <td class="memname">OCI_EXPORT unsigned int OCI_API OCI_LongRead           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_o_c_i___long.html">OCI_Long</a> *&nbsp;</td>
          <td class="paramname"> <em>lg</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&nbsp;</td>
          <td class="paramname"> <em>buffer</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">unsigned int&nbsp;</td>
          <td class="paramname"> <em>len</em></td><td>&nbsp;</td>
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          <td>)</td>
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<p>
Read a portion of a long into the given buffer [Obsolete]. 
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<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>lg</em>&nbsp;</td><td>- Long handle </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>buffer</em>&nbsp;</td><td>- Pointer to a buffer </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>len</em>&nbsp;</td><td>- Length of the buffer in bytes / characters</td></tr>
  </table>
</dl>
<dl class="note" compact><dt><b>Note:</b></dt><dd><ul>
<li>From version 2.0.0, this function is obsolete because OCILIB fetches now all data during OCIFetchNext() call</li><li>So, this call reads now the internal <a class="el" href="struct_o_c_i___long.html" title="Oracle Long datatype.">OCI_Long</a> object allocated buffer</li><li>The internal buffer can be directly accessed with <a class="el" href="group__g__long.html#gee33459c8a44c3216df4335627cac818" title="Return the internal buffer of an OCI_Long object read from a fetch sequence.">OCI_LongGetBuffer()</a></li></ul>
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<ul>
<li>For OCI_CLONG, parameter 'len' and returned value are expressed in characters</li><li>For OCI_BLONG, parameter 'len' and returned value are expressed in bytes</li></ul>
</dd></dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><ul>
<li>Number of bytes/characters read on success</li><li>0 if there is nothing more to read</li><li>0 on failure </li></ul>
</dd></dl>

<p>Definition at line <a class="el" href="long_8c-source.html#l00136">136</a> of file <a class="el" href="long_8c-source.html">long.c</a>.</p>

<p>References <a class="el" href="ocilib__types_8h-source.html#l00439">OCI_Long::buffer</a>, <a class="el" href="ocilib__types_8h-source.html#l00376">OCI_Statement::con</a>, <a class="el" href="ocilib__types_8h-source.html#l00436">OCI_Long::offset</a>, <a class="el" href="ocilib__types_8h-source.html#l00434">OCI_Long::size</a>, <a class="el" href="ocilib__types_8h-source.html#l00431">OCI_Long::stmt</a>, and <a class="el" href="ocilib__types_8h-source.html#l00435">OCI_Long::type</a>.</p>

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<a class="anchor" name="g1a76c2c5de1c81d38be17bf28524ce99"></a><!-- doxytag: member="ocilib.h::OCI_LongWrite" ref="g1a76c2c5de1c81d38be17bf28524ce99" args="(OCI_Long *lg, void *buffer, unsigned int len)" -->
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          <td class="memname">OCI_EXPORT unsigned int OCI_API OCI_LongWrite           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_o_c_i___long.html">OCI_Long</a> *&nbsp;</td>
          <td class="paramname"> <em>lg</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&nbsp;</td>
          <td class="paramname"> <em>buffer</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">unsigned int&nbsp;</td>
          <td class="paramname"> <em>len</em></td><td>&nbsp;</td>
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          <td></td>
          <td>)</td>
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<p>
Write a buffer into a Long. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>lg</em>&nbsp;</td><td>- Long handle </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>buffer</em>&nbsp;</td><td>- the pointer to a buffer </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>len</em>&nbsp;</td><td>- the length of the buffer in bytes (OCI_BLONG) or character (OCI_CLONG)</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>Number of bytes (OCI_BLONG) / character (OCI_CLONG) written on success<ul>
<li>0 if there is nothing more to read</li><li>0 on failure </li></ul>
</dd></dl>

<p>Definition at line <a class="el" href="long_8c-source.html#l00172">172</a> of file <a class="el" href="long_8c-source.html">long.c</a>.</p>

<p>References <a class="el" href="ocilib__types_8h-source.html#l00376">OCI_Statement::con</a>, <a class="el" href="ocilib__types_8h-source.html#l00237">OCI_Connection::cxt</a>, <a class="el" href="ocilib__types_8h-source.html#l00235">OCI_Connection::err</a>, <a class="el" href="ocilib__types_8h-source.html#l00386">OCI_Statement::long_size</a>, <a class="el" href="ocilib__types_8h-source.html#l00434">OCI_Long::size</a>, <a class="el" href="ocilib__types_8h-source.html#l00373">OCI_Statement::stmt</a>, <a class="el" href="ocilib__types_8h-source.html#l00431">OCI_Long::stmt</a>, and <a class="el" href="ocilib__types_8h-source.html#l00435">OCI_Long::type</a>.</p>

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