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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/resultset.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 Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data 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/resultset.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) 2007-2009 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 <vince.rogier@gmail.com> |</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: resultset.c, v 3.2.0 2009/04/20 00:00 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_ResultsetCreate</span><a name="l00043"></a>00043 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00044"></a>00044 <a name="l00045"></a>00045 <a class="code" href="struct_o_c_i___resultset.html" title="Collection of output columns from a select statement.">OCI_Resultset</a> * OCI_ResultsetCreate(<a class="code" href="struct_o_c_i___statement.html" title="Oracle SQL or PL/SQL statement.">OCI_Statement</a> *stmt, <span class="keywordtype">int</span> size)<a name="l00046"></a>00046 {<a name="l00047"></a>00047 <a class="code" href="struct_o_c_i___resultset.html" title="Collection of output columns from a select statement.">OCI_Resultset</a>* rs = NULL;<a name="l00048"></a>00048 <span class="keywordtype">boolean</span> res = TRUE;<a name="l00049"></a>00049 ub4 nb = 0;<a name="l00050"></a>00050 ub4 i;<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="comment">/* allocate resultset structure */</span><a name="l00053"></a>00053 <a name="l00054"></a>00054 rs = (<a class="code" href="struct_o_c_i___resultset.html" title="Collection of output columns from a select statement.">OCI_Resultset</a> *) OCI_MemAlloc(OCI_IPC_RESULTSET, <span class="keyword">sizeof</span>(*rs), 1, TRUE);<a name="l00055"></a>00055 <a name="l00056"></a>00056 <span class="comment">/* set attributes */</span><a name="l00057"></a>00057 <a name="l00058"></a>00058 <span class="keywordflow">if</span> (rs != NULL)<a name="l00059"></a>00059 {<a name="l00060"></a>00060 rs-><a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a> = stmt;<a name="l00061"></a>00061 rs-><a class="code" href="struct_o_c_i___resultset.html#356238d1be7f437365b64f38af66305c">bof</a> = TRUE;<a name="l00062"></a>00062 rs-><a class="code" href="struct_o_c_i___resultset.html#3a4dd67805dca28105e9c9c32cc893fe">eof</a> = FALSE;<a name="l00063"></a>00063 rs-><a class="code" href="struct_o_c_i___resultset.html#f1e985de777e4ab098b2183fc43e4612">fetch_size</a> = size;<a name="l00064"></a>00064 rs-><a class="code" href="struct_o_c_i___resultset.html#261b838dbeb0658e84d45a210542c7e8">fetch_status</a> = OCI_SUCCESS;<a name="l00065"></a>00065 rs-><a class="code" href="struct_o_c_i___resultset.html#9c252a26f209b62a6f523dcf59ca9a0d">row_count</a> = 0;<a name="l00066"></a>00066 rs-><a class="code" href="struct_o_c_i___resultset.html#540ba8a96856cdbc89885745e7c6c72f">row_cur</a> = 0;<a name="l00067"></a>00067 rs-><a class="code" href="struct_o_c_i___resultset.html#c15097d127ce4369796be68769a91d14">row_abs</a> = 0;<a name="l00068"></a>00068 <a name="l00069"></a>00069 <span class="comment">/* is the resultset created from a SQL select statement ? */</span><a name="l00070"></a>00070 <a name="l00071"></a>00071 <span class="keywordflow">if</span> (stmt-><a class="code" href="struct_o_c_i___statement.html#9cf69f367c58d7d808cdb799704f684c">type</a> == OCI_CST_SELECT)<a name="l00072"></a>00072 {<a name="l00073"></a>00073 OCI_CALL1<a name="l00074"></a>00074 (<a name="l00075"></a>00075 res, stmt-><a class="code" href="struct_o_c_i___statement.html#338ddf58debd7de6ab9355f1e75d78f6">con</a>, stmt,<a name="l00076"></a>00076 <a name="l00077"></a>00077 OCIAttrGet((<span class="keywordtype">void</span> *) stmt-><a class="code" href="struct_o_c_i___statement.html#e526a309495dc7d8bcb747b2771de6b9">stmt</a>, (ub4) OCI_HTYPE_STMT,<a name="l00078"></a>00078 (<span class="keywordtype">void</span> *) &nb, (ub4 *) NULL,<a name="l00079"></a>00079 (ub4) OCI_ATTR_PARAM_COUNT, stmt-><a class="code" href="struct_o_c_i___statement.html#338ddf58debd7de6ab9355f1e75d78f6">con</a>-><a class="code" href="struct_o_c_i___connection.html#573a359867139990b1b0f50aa7a86175">err</a>)<a name="l00080"></a>00080 )<a name="l00081"></a>00081 }<a name="l00082"></a>00082 <span class="keywordflow">else</span><a name="l00083"></a>00083 {<a name="l00084"></a>00084 nb = stmt-><a class="code" href="struct_o_c_i___statement.html#13605ddb96fc31bc8408c38880ec8447">nb_rbinds</a>;<a name="l00085"></a>00085 }<a name="l00086"></a>00086 <a name="l00087"></a>00087 <span class="comment">/* allocate columns array */</span><a name="l00088"></a>00088 <a name="l00089"></a>00089 <span class="keywordflow">if</span> (res == TRUE)<a name="l00090"></a>00090 {<a name="l00091"></a>00091 rs-><a class="code" href="struct_o_c_i___resultset.html#ca691fad2f84ecfb8956f5e1649c0a53">defs</a> = (OCI_Define *) OCI_MemAlloc(OCI_IPC_DEFINE, <span class="keyword">sizeof</span>(*rs-><a class="code" href="struct_o_c_i___resultset.html#ca691fad2f84ecfb8956f5e1649c0a53">defs</a>),<a name="l00092"></a>00092 nb, TRUE);<a name="l00093"></a>00093 <a name="l00094"></a>00094 res = (rs-><a class="code" href="struct_o_c_i___resultset.html#ca691fad2f84ecfb8956f5e1649c0a53">defs</a> != NULL);<a name="l00095"></a>00095 }<a name="l00096"></a>00096 <a name="l00097"></a>00097 <span class="comment">/* describe select list */</span><a name="l00098"></a>00098 <a name="l00099"></a>00099 <span class="keywordflow">if</span> ((res == TRUE) && (stmt-><a class="code" href="struct_o_c_i___statement.html#9cf69f367c58d7d808cdb799704f684c">type</a> == OCI_CST_SELECT))<a name="l00100"></a>00100 {<a name="l00101"></a>00101 <span class="keywordflow">for</span> (i=0; i < nb; i++)<a name="l00102"></a>00102 {<a name="l00103"></a>00103 OCI_Define *def = &rs-><a class="code" href="struct_o_c_i___resultset.html#ca691fad2f84ecfb8956f5e1649c0a53">defs</a>[i];<a name="l00104"></a>00104 <a name="l00105"></a>00105 def->buf.count = size;<a name="l00106"></a>00106 def->buf.sizelen = <span class="keyword">sizeof</span>(ub2);<a name="l00107"></a>00107 <a name="l00108"></a>00108 def->rs = rs;<a name="l00109"></a>00109 <a name="l00110"></a>00110 rs-><a class="code" href="struct_o_c_i___resultset.html#5c03dc5e587cf642f7417ee62b2ea808">nb_defs</a>++;<a name="l00111"></a>00111 <a name="l00112"></a>00112 <span class="comment">/* get column description */</span><a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="keywordflow">if</span> (res == TRUE)<a name="l00115"></a>00115 res = OCI_ColumnDescribe(&def->col, rs-><a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>-><a class="code" href="struct_o_c_i___statement.html#338ddf58debd7de6ab9355f1e75d78f6">con</a>,<a name="l00116"></a>00116 rs-><a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>, rs-><a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>-><a class="code" href="struct_o_c_i___statement.html#e526a309495dc7d8bcb747b2771de6b9">stmt</a>,<a name="l00117"></a>00117 rs-><a class="code" href="struct_o_c_i___resultset.html#5c03dc5e587cf642f7417ee62b2ea808">nb_defs</a>, OCI_DESC_RESULTSET);<a name="l00118"></a>00118 <a name="l00119"></a>00119 <span class="comment">/* mapping to OCILIB internal types */</span><a name="l00120"></a>00120 <a name="l00121"></a>00121 <span class="keywordflow">if</span> (res == TRUE)⌨️ 快捷键说明
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