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📄 schema_8c-source.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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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>OCILIB (C Driver for Oracle): C:/Users/vincent/Data/Perso/dev/ocilib/ocilib/src/schema.c Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.4 --><div class="tabs">  <ul>    <li><a href="index.html"><span>Main&nbsp;Page</span></a></li>    <li><a href="modules.html"><span>Modules</span></a></li>    <li><a href="annotated.html"><span>Data&nbsp;Structures</span></a></li>    <li class="current"><a href="files.html"><span>Files</span></a></li>  </ul></div><h1>C:/Users/vincent/Data/Perso/dev/ocilib/ocilib/src/schema.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment">   +----------------------------------------------------------------------+   </span><a name="l00003"></a>00003 <span class="comment">   |                                                                      |</span><a name="l00004"></a>00004 <span class="comment">   |                     OCILIB - C Driver for Oracle                     |</span><a name="l00005"></a>00005 <span class="comment">   |                                                                      |</span><a name="l00006"></a>00006 <span class="comment">   |                      (C Wrapper for Oracle OCI)                      |</span><a name="l00007"></a>00007 <span class="comment">   |                                                                      |</span><a name="l00008"></a>00008 <span class="comment">   +----------------------------------------------------------------------+</span><a name="l00009"></a>00009 <span class="comment">   |                      Website : http://ocilib.net                     |</span><a name="l00010"></a>00010 <span class="comment">   +----------------------------------------------------------------------+</span><a name="l00011"></a>00011 <span class="comment">   |               Copyright (c) 2007-2008 Vincent ROGIER                 |</span><a name="l00012"></a>00012 <span class="comment">   +----------------------------------------------------------------------+</span><a name="l00013"></a>00013 <span class="comment">   | This library is free software; you can redistribute it and/or        |</span><a name="l00014"></a>00014 <span class="comment">   | modify it under the terms of the GNU Library General Public          |</span><a name="l00015"></a>00015 <span class="comment">   | License as published by the Free Software Foundation; either         |</span><a name="l00016"></a>00016 <span class="comment">   | version 2 of the License, or (at your option) any later version.     |</span><a name="l00017"></a>00017 <span class="comment">   |                                                                      |</span><a name="l00018"></a>00018 <span class="comment">   | This library is distributed in the hope that it will be useful,      |</span><a name="l00019"></a>00019 <span class="comment">   | but WITHOUT ANY WARRANTY; without even the implied warranty of       |</span><a name="l00020"></a>00020 <span class="comment">   | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU    |</span><a name="l00021"></a>00021 <span class="comment">   | Library General Public License for more details.                     |</span><a name="l00022"></a>00022 <span class="comment">   |                                                                      |</span><a name="l00023"></a>00023 <span class="comment">   | You should have received a copy of the GNU Library General Public    |</span><a name="l00024"></a>00024 <span class="comment">   | License along with this library; if not, write to the Free           |</span><a name="l00025"></a>00025 <span class="comment">   | Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.   |</span><a name="l00026"></a>00026 <span class="comment">   +----------------------------------------------------------------------+</span><a name="l00027"></a>00027 <span class="comment">   |          Author: Vincent ROGIER &lt;vince.rogier@gmail.com&gt;             |</span><a name="l00028"></a>00028 <span class="comment">   +----------------------------------------------------------------------+ </span><a name="l00029"></a>00029 <span class="comment">*/</span><a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00032"></a>00032 <span class="comment"> * $Id: schema.c, v 3.0.0 2008/10/09 09:54 Vince $</span><a name="l00033"></a>00033 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00034"></a>00034 <a name="l00035"></a>00035 <span class="preprocessor">#include "ocilib_internal.h"</span><a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="comment">/* ************************************************************************ *</span><a name="l00038"></a>00038 <span class="comment"> *                             PRIVATE FUNCTIONS</span><a name="l00039"></a>00039 <span class="comment"> * ************************************************************************ */</span><a name="l00040"></a>00040 <a name="l00041"></a>00041 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00042"></a>00042 <span class="comment"> * OCI_SchemaClose</span><a name="l00043"></a>00043 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="keywordtype">boolean</span> OCI_SchemaClose(<a class="code" href="struct_o_c_i___schema.html" title="Schema metadata handle.">OCI_Schema</a> *schema)<a name="l00046"></a>00046 {<a name="l00047"></a>00047     ub2 i;<a name="l00048"></a>00048 <a name="l00049"></a>00049     OCI_CHECK(schema == NULL, FALSE);<a name="l00050"></a>00050 <a name="l00051"></a>00051     <span class="keywordflow">for</span> (i=0; i &lt; schema-&gt;<a class="code" href="struct_o_c_i___schema.html#7e653f740904e095a5dd9e2919f354ff">nb_cols</a>; i++)<a name="l00052"></a>00052     {<a name="l00053"></a>00053         OCI_FREE(schema-&gt;<a class="code" href="struct_o_c_i___schema.html#cf25d0fa0236499ea3845ab77338a5e9">cols</a>[i].<a class="code" href="struct_o_c_i___column.html#78b329664d213d666619d5130098f309">name</a>);<a name="l00054"></a>00054     }<a name="l00055"></a>00055 <a name="l00056"></a>00056     OCI_FREE(schema-&gt;<a class="code" href="struct_o_c_i___schema.html#cf25d0fa0236499ea3845ab77338a5e9">cols</a>);<a name="l00057"></a>00057     OCI_FREE(schema-&gt;<a class="code" href="struct_o_c_i___schema.html#3defe3dbfe9f95653d2e84ddb2a2023a">name</a>);<a name="l00058"></a>00058 <a name="l00059"></a>00059     <span class="keywordflow">return</span> TRUE;<a name="l00060"></a>00060 }<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="comment">/* ************************************************************************ *</span><a name="l00063"></a>00063 <span class="comment"> *                            PUBLIC FUNCTIONS</span><a name="l00064"></a>00064 <span class="comment"> * ************************************************************************ */</span><a name="l00065"></a>00065 <a name="l00066"></a>00066 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00067"></a>00067 <span class="comment"> * OCI_SchemaGet</span><a name="l00068"></a>00068 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00069"></a>00069 <a name="l00070"></a><a class="code" href="group__g__desc.html#gba23217d4a9477dc1c373b7392bd15de">00070</a> <a class="code" href="struct_o_c_i___schema.html" title="Schema metadata handle.">OCI_Schema</a> * OCI_API <a class="code" href="group__g__desc.html#gba23217d4a9477dc1c373b7392bd15de" title="Retrieve the available schema information.">OCI_SchemaGet</a>(<a class="code" href="struct_o_c_i___connection.html" title="Oracle physical connection.">OCI_Connection</a> *con, <span class="keyword">const</span> mtext *name, <a name="l00071"></a>00071                                    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> type)<a name="l00072"></a>00072 {<a name="l00073"></a>00073     <a class="code" href="struct_o_c_i___schema.html" title="Schema metadata handle.">OCI_Schema</a> *schema = NULL;<a name="l00074"></a>00074     OCI_Item     *item = NULL;<a name="l00075"></a>00075     OCIDescribe *dschp = NULL;<a name="l00076"></a>00076     OCIParam *parmh1   = NULL;<a name="l00077"></a>00077     OCIParam *parmh2   = NULL;<a name="l00078"></a>00078     <span class="keywordtype">void</span> *ostr         = NULL;<a name="l00079"></a>00079     mtext *str         = NULL;<a name="l00080"></a>00080     <span class="keywordtype">int</span> etype          = OCI_DESC_COLUMN;<a name="l00081"></a>00081     <span class="keywordtype">int</span> ptype          = 0;<a name="l00082"></a>00082     ub1 item_type      = 0;<a name="l00083"></a>00083     ub4 attr_type      = 0;<a name="l00084"></a>00084     ub4 num_type       = 0;<a name="l00085"></a>00085     <span class="keywordtype">int</span> osize          = -1;<a name="l00086"></a>00086     <span class="keywordtype">boolean</span> res        = TRUE;<a name="l00087"></a>00087     <span class="keywordtype">boolean</span> found      = FALSE;<a name="l00088"></a>00088     ub2 i;<a name="l00089"></a>00089 <a name="l00090"></a>00090     OCI_CHECK_INITIALIZED(NULL);<a name="l00091"></a>00091 <a name="l00092"></a>00092     OCI_CHECK_PTR(OCI_IPC_CONNECTION, con, NULL);<a name="l00093"></a>00093     OCI_CHECK_PTR(OCI_IPC_STRING, name, NULL);<a name="l00094"></a>00094 <a name="l00095"></a>00095     <span class="keywordflow">if</span> (type == OCI_SCHEMA_TABLE)<a name="l00096"></a>00096         item_type = OCI_PTYPE_TABLE;<a name="l00097"></a>00097     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == OCI_SCHEMA_VIEW)<a name="l00098"></a>00098         item_type = OCI_PTYPE_VIEW;<a name="l00099"></a>00099     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == OCI_SCHEMA_TYPE)<a name="l00100"></a>00100         item_type = OCI_PTYPE_TYPE;<a name="l00101"></a>00101     <span class="keywordflow">else</span><a name="l00102"></a>00102         <span class="keywordflow">return</span> NULL;<a name="l00103"></a>00103 <a name="l00104"></a>00104     <span class="comment">/* first try to find it in list */</span><a name="l00105"></a>00105 <a name="l00106"></a>00106     item = con-&gt;<a class="code" href="struct_o_c_i___connection.html#220b45c2fd519a7e20e7977490e04ee6">sobjs</a>-&gt;head;<a name="l00107"></a>00107 <a name="l00108"></a>00108     <span class="comment">/* walk along the list to find the type */</span><a name="l00109"></a>00109     <span class="keywordflow">while</span> (item != NULL)<a name="l00110"></a>00110     {<a name="l00111"></a>00111         schema = (<a class="code" href="struct_o_c_i___schema.html" title="Schema metadata handle.">OCI_Schema</a> *) item-&gt;data;<a name="l00112"></a>00112      <a name="l00113"></a>00113         if (schema != NULL &amp;&amp; mtscasecmp(schema-&gt;<a class="code" href="struct_o_c_i___schema.html#3defe3dbfe9f95653d2e84ddb2a2023a">name</a>, name) == 0)<a name="l00114"></a>00114         {<a name="l00115"></a>00115             <span class="keywordflow">if</span> (schema-&gt;<a class="code" href="struct_o_c_i___schema.html#e3d92ea63461c344eddb678d167191fc">type</a> == type)<a name="l00116"></a>00116             {<a name="l00117"></a>00117                 found = TRUE;

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