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📄 resultset_8c-source.html

📁 oci的源码,可以在任何平台上编译,相当方便实用
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<a name="l00122"></a>00122                     res = OCI_ColumnMap(&amp;def-&gt;col, rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>);<a name="l00123"></a>00123 <a name="l00124"></a>00124                 <span class="comment">/* allocation of internal buffers for resultset content */</span><a name="l00125"></a>00125 <a name="l00126"></a>00126                 <span class="keywordflow">if</span> (res == TRUE)<a name="l00127"></a>00127                     res = OCI_DefineAlloc(def);<a name="l00128"></a>00128 <a name="l00129"></a>00129                 <span class="comment">/* register OCILIB result buffers to OCI */</span><a name="l00130"></a>00130 <a name="l00131"></a>00131                 <span class="keywordflow">if</span> (res == TRUE)<a name="l00132"></a>00132                     res = OCI_DefineDef(def);<a name="l00133"></a>00133 <a name="l00134"></a>00134                 <span class="keywordflow">if</span> (res == FALSE)<a name="l00135"></a>00135                     <span class="keywordflow">break</span>;<a name="l00136"></a>00136             }<a name="l00137"></a>00137         }<a name="l00138"></a>00138         <span class="keywordflow">else</span><a name="l00139"></a>00139         {<a name="l00140"></a>00140             <span class="comment">/* get info from register binds */</span><a name="l00141"></a>00141 <a name="l00142"></a>00142             <span class="keywordflow">for</span> (i=0; i &lt; stmt-&gt;<a class="code" href="struct_o_c_i___statement.html#13605ddb96fc31bc8408c38880ec8447">nb_rbinds</a>; i++)<a name="l00143"></a>00143             {<a name="l00144"></a>00144                 <a class="code" href="struct_o_c_i___bind.html" title="Internal bind representation.">OCI_Bind</a>   *bnd  = stmt-&gt;<a class="code" href="struct_o_c_i___statement.html#19eb8e85ee77ae645f6c1f1e7eaa3eb5">rbinds</a>[i];<a name="l00145"></a>00145                 OCI_Define *def  = &amp;rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#ca691fad2f84ecfb8956f5e1649c0a53">defs</a>[bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#70a6873b4768505dce5767f5a2f18c31">dynpos</a>];<a name="l00146"></a>00146 <a name="l00147"></a>00147                 def-&gt;buf.count   = size;<a name="l00148"></a>00148                 def-&gt;buf.sizelen = <span class="keyword">sizeof</span>(ub4);<a name="l00149"></a>00149 <a name="l00150"></a>00150                 def-&gt;rs = rs;<a name="l00151"></a>00151 <a name="l00152"></a>00152                 rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#5c03dc5e587cf642f7417ee62b2ea808">nb_defs</a>++;<a name="l00153"></a>00153 <a name="l00154"></a>00154                 <span class="comment">/* columns info */</span><a name="l00155"></a>00155 <a name="l00156"></a>00156                 def-&gt;col.ocode   = bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#a7c3066a9503075a649ade3674bce071">code</a>;<a name="l00157"></a>00157                 def-&gt;col.name    = mtsdup(bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#2df073f29af7df69965c5386886c1d03">name</a>);<a name="l00158"></a>00158                 def-&gt;col.size    = (ub2) bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#fcbb3ea5c94af6f92f353d8cad5ece39">size</a>;<a name="l00159"></a>00159                 def-&gt;col.type    = bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#4892923281f05c1b53ea90d77f900f5f">type</a>;<a name="l00160"></a>00160                 def-&gt;col.subtype = bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#3f5dd93654e5d7a3f55d8cf74583b9c8">subtype</a>;<a name="l00161"></a>00161 <a name="l00162"></a>00162                 <span class="comment">/* check national attribute for nclobs */</span><a name="l00163"></a>00163 <a name="l00164"></a>00164                 if (bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#4892923281f05c1b53ea90d77f900f5f">type</a> == OCI_CDT_LOB &amp;&amp; bnd-&gt;<a class="code" href="struct_o_c_i___bind.html#3f5dd93654e5d7a3f55d8cf74583b9c8">subtype</a> == OCI_NCLOB)<a name="l00165"></a>00165                     def-&gt;col.csfrm = SQLCS_NCHAR;<a name="l00166"></a>00166 <a name="l00167"></a>00167                 <span class="comment">/* adjust column size from bind attributes */</span><a name="l00168"></a>00168 <a name="l00169"></a>00169                 <span class="keywordflow">if</span> (def-&gt;col.type == OCI_CDT_TEXT)<a name="l00170"></a>00170                     def-&gt;col.size = (ub2) (def-&gt;col.size / (<span class="keyword">sizeof</span>(dtext)) - 1);<a name="l00171"></a>00171 <a name="l00172"></a>00172                 <span class="comment">/* for integer types, set the bufsize here in order to</span><a name="l00173"></a>00173 <span class="comment">                   retrieve later the integer type (short, integer, big_int)</span><a name="l00174"></a>00174 <span class="comment">                   depending on the integer size */</span><a name="l00175"></a>00175 <a name="l00176"></a>00176                 <span class="keywordflow">if</span> (def-&gt;col.type == OCI_CDT_NUMERIC)<a name="l00177"></a>00177                     def-&gt;col.bufsize = def-&gt;col.size;<a name="l00178"></a>00178 <a name="l00179"></a>00179                 <span class="comment">/* preset bufsize here to let OCI_ColumnMap() know we don't</span><a name="l00180"></a>00180 <span class="comment">                   want the column to mapped to SQLT_ODT */</span><a name="l00181"></a>00181 <a name="l00182"></a>00182                 <span class="keywordflow">if</span> (def-&gt;col.ocode == SQLT_DAT)<a name="l00183"></a>00183                     def-&gt;col.bufsize = def-&gt;col.size;<a name="l00184"></a>00184 <a name="l00185"></a>00185                 <span class="comment">/* map column : failure means unsupported type */</span><a name="l00186"></a>00186 <a name="l00187"></a>00187                 <span class="keywordflow">if</span> (res == TRUE)<a name="l00188"></a>00188                     res = OCI_ColumnMap(&amp;def-&gt;col, rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>);<a name="l00189"></a>00189 <a name="l00190"></a>00190                 <span class="comment">/* allocation of internal buffers for resultset content */</span><a name="l00191"></a>00191 <a name="l00192"></a>00192                 <span class="keywordflow">if</span> (res == TRUE)<a name="l00193"></a>00193                     res = OCI_DefineAlloc(def);<a name="l00194"></a>00194 <a name="l00195"></a>00195                 <span class="keywordflow">if</span> (res == FALSE)<a name="l00196"></a>00196                     <span class="keywordflow">break</span>;<a name="l00197"></a>00197             }<a name="l00198"></a>00198         }<a name="l00199"></a>00199     }<a name="l00200"></a>00200 <a name="l00201"></a>00201     <span class="keywordflow">return</span> rs;<a name="l00202"></a>00202 }<a name="l00203"></a>00203 <a name="l00204"></a>00204 <a name="l00205"></a>00205 <span class="comment">/* ------------------------------------------------------------------------ *</span><a name="l00206"></a>00206 <span class="comment"> * OCI_FetchPieces</span><a name="l00207"></a>00207 <span class="comment"> * ------------------------------------------------------------------------ */</span><a name="l00208"></a>00208 <a name="l00209"></a>00209 <span class="keywordtype">boolean</span> OCI_FetchPieces(<a class="code" href="struct_o_c_i___resultset.html" title="Collection of output columns from a select statement.">OCI_Resultset</a> *rs)<a name="l00210"></a>00210 {<a name="l00211"></a>00211     <span class="keywordtype">boolean</span> res  = TRUE;<a name="l00212"></a>00212 <a name="l00213"></a>00213     ub4 type, iter, dx;<a name="l00214"></a>00214     ub1 in_out, piece;<a name="l00215"></a>00215     <span class="keywordtype">void</span> *handle;<a name="l00216"></a>00216     ub4 i, j;<a name="l00217"></a>00217 <a name="l00218"></a>00218     OCI_CHECK(rs == NULL, FALSE);<a name="l00219"></a>00219 <a name="l00220"></a>00220     <span class="comment">/* reset long objects */</span><a name="l00221"></a>00221 <a name="l00222"></a>00222     <span class="keywordflow">for</span> (i = 0; i &lt; rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#5c03dc5e587cf642f7417ee62b2ea808">nb_defs</a>; i++)<a name="l00223"></a>00223     {<a name="l00224"></a>00224         OCI_Define *def = &amp;rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#ca691fad2f84ecfb8956f5e1649c0a53">defs</a>[i];<a name="l00225"></a>00225 <a name="l00226"></a>00226         <span class="keywordflow">if</span> (def-&gt;col.type == OCI_CDT_LONG)<a name="l00227"></a>00227         {<a name="l00228"></a>00228             <span class="keywordflow">for</span> (j = 0; j &lt; def-&gt;buf.count; j++)<a name="l00229"></a>00229             {<a name="l00230"></a>00230                 OCI_LongInit(rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>, (<a class="code" href="struct_o_c_i___long.html" title="Oracle Long datatype.">OCI_Long</a> **) &amp;def-&gt;buf.data[j],<a name="l00231"></a>00231                              def, def-&gt;col.subtype);<a name="l00232"></a>00232             }<a name="l00233"></a>00233         }<a name="l00234"></a>00234     }<a name="l00235"></a>00235 <a name="l00236"></a>00236     <span class="comment">/* dynamic fetch */</span><a name="l00237"></a>00237 <a name="l00238"></a>00238     <span class="keywordflow">while</span> ((res == TRUE) &amp;&amp; (rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#261b838dbeb0658e84d45a210542c7e8">fetch_status</a> == OCI_NEED_DATA))<a name="l00239"></a>00239     {<a name="l00240"></a>00240         piece  = OCI_NEXT_PIECE;<a name="l00241"></a>00241         iter   = 0;<a name="l00242"></a>00242         handle = NULL;<a name="l00243"></a>00243 <a name="l00244"></a>00244         <span class="comment">/* get piece information */</span><a name="l00245"></a>00245 <a name="l00246"></a>00246         OCI_CALL1<a name="l00247"></a>00247         (<a name="l00248"></a>00248             res, rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>-&gt;<a class="code" href="struct_o_c_i___statement.html#338ddf58debd7de6ab9355f1e75d78f6">con</a>, rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>,<a name="l00249"></a>00249 <a name="l00250"></a>00250             OCIStmtGetPieceInfo(rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>-&gt;<a class="code" href="struct_o_c_i___statement.html#e526a309495dc7d8bcb747b2771de6b9">stmt</a>, rs-&gt;<a class="code" href="struct_o_c_i___resultset.html#c12ae7da6f8d20f00c6ad69cdb31373a">stmt</a>-&gt;<a class="code" href="struct_o_c_i___statement.html#338ddf58debd7de6ab9355f1e75d78f6">con</a>-&gt;<a class="code" href="struct_o_c_i___connection.html#573a359867139990b1b0f50aa7a86175">err</a>,<a name="l00251"></a>00251                                 &amp;handle,  &amp;type, &amp;in_out, &amp;iter, &amp;dx, &amp;piece)<a name="l00252"></a>00252         )<a name="l00253"></a>00253 <a name="l00254"></a>00254         <span class="comment">/* search for the given column */</span><a name="l00255"></a>00255 <a name="l00256"></a>00256         for (i = 0; (res == TRUE) &amp;&amp; (i &lt; rs-&gt;nb_defs); i++)<a name="l00257"></a>00257         {

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