classdbdatabase.html

俄罗斯牛人KK的作品,著名的ORDBMS,这里上传最新的3.39版本源代码.希望了解对象关系数据库的同好,请不要错过.

<p>
Commit transaction <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>ctx</em>&nbsp;</td><td>
thread context </td></tr>
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<a name="dbSubSqla8" doxytag="dbDatabase::commit"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::commit </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Commit transaction     </td>
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<a name="dbSubSqlb59" doxytag="dbDatabase::commitLocation"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::commitLocation </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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<p>
Remove location from list of reserved locations. It is done after location is marked as occupied in bitmap.     </td>
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<a name="dbSubSqlb41" doxytag="dbDatabase::completeDescriptorsInitialization"></a><p>
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          <td class="md" nowrap valign="top"> bool dbDatabase::completeDescriptorsInitialization </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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<p>
This method is invoked by SubSQL to complete table descriptors initialization after loading of all table descriptoes from thr database <dl compact><dt><b>Returns: </b></dt><dd>
true if intertable relation consuistency is rpeservedm false otherwise </dl>    </td>
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<a name="dbSubSqlb52" doxytag="dbDatabase::createHashTable"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::createHashTable </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="classdbFieldDescriptor.html">dbFieldDescriptor</a> *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>fd</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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Create hash table for the field <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>fd</em>&nbsp;</td><td>
field descriptor </td></tr>
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<a name="dbSubSqlb51" doxytag="dbDatabase::createIndex"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::createIndex </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="classdbFieldDescriptor.html">dbFieldDescriptor</a> *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>fd</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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<p>
Create T-Tree index for the field <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>fd</em>&nbsp;</td><td>
field descriptor </td></tr>
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<a name="dbSubSqlb24" doxytag="dbDatabase::deallocate"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::deallocate </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">offs_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>pos</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>size_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>size</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [protected]</code></td>
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<p>
Deallocate region  <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>pos</em>&nbsp;</td><td>
start position of region </td></tr>
<tr><td valign=top><em>size</em>&nbsp;</td><td>
of region </td></tr>
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<a name="dbSubSqle3" doxytag="dbDatabase::deleteCompiledQuery"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::deleteCompiledQuery </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">dbExprNode *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>tree</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [static, protected]</code></td>
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<p>
Cleanup compiled query     </td>
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<a name="dbSubSqlb49" doxytag="dbDatabase::deleteTable"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::deleteTable </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="classdbTableDescriptor.html">dbTableDescriptor</a> *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>desc</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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<p>
Delete table from the database <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>desc</em>&nbsp;</td><td>
table descriptor </td></tr>
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<a name="dbSubSqla14" doxytag="dbDatabase::detach"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::detach </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">int&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>flags</em> = COMMIT|DESTROY_CONTEXT          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Detach thread from the database. <dl compact><dt><b>Parameters: </b></dt><dd>