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.

<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>flags</em>&nbsp;</td><td>
mask of DetachFlags COMMIT and DESTROY_CONTEXT </td></tr>
</table>
</dl>    </td>
  </tr>
</table>
<a name="dbSubSqlb54" doxytag="dbDatabase::dropHashTable"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void dbDatabase::dropHashTable </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>
        </tr>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Drop hash table for the field <dl compact><dt><b>Parameters: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>fd</em>&nbsp;</td><td>
field descriptor </td></tr>
</table>
</dl>    </td>
  </tr>
</table>
<a name="dbSubSqlb53" doxytag="dbDatabase::dropIndex"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void dbDatabase::dropIndex </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>
        </tr>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Drop T-Tree index for the field <dl compact><dt><b>Parameters: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>fd</em>&nbsp;</td><td>
field descriptor </td></tr>
</table>
</dl>    </td>
  </tr>
</table>
<a name="dbSubSqlb50" doxytag="dbDatabase::dropTable"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void dbDatabase::dropTable </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>
        </tr>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Delete all table records <dl compact><dt><b>Parameters: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>desc</em>&nbsp;</td><td>
table descriptor </td></tr>
</table>
</dl>    </td>
  </tr>
</table>
<a name="dbSubSqlb38" doxytag="dbDatabase::endTransaction"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void dbDatabase::endTransaction </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">dbDatabaseThreadContext *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>ctx</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
        </tr>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
End transaction with specified thread context <dl compact><dt><b>Parameters: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>ctx</em>&nbsp;</td><td>
thread context </td></tr>
</table>
</dl>    </td>
  </tr>
</table>
<a name="dbSubSqlb37" doxytag="dbDatabase::endTransaction"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void dbDatabase::endTransaction </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> [inline, protected]</code></td>
        </tr>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
End transaction     </td>
  </tr>
</table>
<a name="dbSubSqlb17" doxytag="dbDatabase::evaluate"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> bool dbDatabase::evaluate </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">dbExprNode *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>expr</em>, </td>
        </tr>
        <tr>
          <td></td>
          <td></td>
          <td class="md" nowrap>oid_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>oid</em>, </td>
        </tr>
        <tr>
          <td></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="classdbTable.html">dbTable</a> *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>table</em>, </td>
        </tr>
        <tr>
          <td></td>
          <td></td>
          <td class="md" nowrap><a class="el" href="classdbAnyCursor.html">dbAnyCursor</a> *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>cursor</em></td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [protected]</code></td>
        </tr>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Evaluate epression. This method initialie initiainherited attributes and invoke execute method <dl compact><dt><b>Parameters: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>expr</em>&nbsp;</td><td>
expression to be evaluated </td></tr>
<tr><td valign=top><em>oid</em>&nbsp;</td><td>
OID of the inspected record </td></tr>
<tr><td valign=top><em>seaqched</em>&nbsp;</td><td>
table </td></tr>
<tr><td valign=top><em>cursor</em>&nbsp;</td><td>
result set </td></tr>
</table>
</dl><dl compact><dt><b>Returns: </b></dt><dd>
true if this record match search condition, false otherwise </dl>    </td>
  </tr>
</table>
<a name="dbSubSqle2" doxytag="dbDatabase::execute"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> void _fastcall dbDatabase::execute </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">dbExprNode *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>expr</em>, </td>
        </tr>
        <tr>
          <td></td>
          <td></td>
          <td class="md" nowrap>dbInheritedAttribute &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>iattr</em>, </td>
        </tr>
        <tr>
          <td></td>
          <td></td>
          <td class="md" nowrap>dbSynthesizedAttribute &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>sattr</em></td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [static, protected]</code></td>
        </tr>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Execute expression. This method is most frequently recursivly called during  evaluation of search predicate. <dl compact><dt><b>Parameters: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>expr</em>&nbsp;</td><td>
expression to be executed </td></tr>
<tr><td valign=top><em>iattr</em>&nbsp;</td><td>
inherited attributes - attributes passed top-down  (information like cursor, current record, ...) </td></tr>
<tr><td valign=top><em>sattr</em>&nbsp;</td><td>
synthesized attribute - sttributes passed down-top (value of expression) </td></tr>
</table>
</dl>    </td>
  </tr>
</table>
<a name="dbSubSqlb16" doxytag="dbDatabase::existsInverseReference"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"> bool dbDatabase::existsInverseReference </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">dbExprNode *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <e