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.

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          <td class="md" nowrap valign="top"> oid_t dbDatabase::addNewTable </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>
Add new table to the database <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>desc</em>&nbsp;</td><td>
- descriptor of new table </td></tr>
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</dl><dl compact><dt><b>Returns: </b></dt><dd>
oid of created table descriptor record </dl>    </td>
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<a name="dbSubSqlb23" doxytag="dbDatabase::allocate"></a><p>
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          <td class="md" nowrap valign="top"> offs_t dbDatabase::allocate </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">size_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>size</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>oid_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>oid</em> = 0</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>
Allocate object in the database <a href="mailto:e@param">e@param</a> size size of alocated object <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>oid</em>&nbsp;</td><td>
if oid is not 0, then allocated region position is stored in correcpondent  cell of object index (needed for allocation of bitmap pages) </td></tr>
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</dl><dl compact><dt><b>Returns: </b></dt><dd>
position of allcoated region </dl>    </td>
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<a name="dbSubSqlb27" doxytag="dbDatabase::allocateId"></a><p>
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          <td class="md" nowrap valign="top"> oid_t dbDatabase::allocateId </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>n</em> = 1          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [protected]</code></td>
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<p>
Allocate object identifier(s) <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>number</em>&nbsp;</td><td>
of allocated object indentifiers </td></tr>
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</dl><dl compact><dt><b>Returns: </b></dt><dd>
object idenitifer (in case if n greater than 1, all n subsequent OIDs are  allocated and first one is returned </dl>    </td>
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<a name="dbSubSqlb31" doxytag="dbDatabase::allocateObject"></a><p>
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          <td class="md" nowrap valign="top"> oid_t dbDatabase::allocateObject </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">dbInternalObject&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>marker</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inline, protected]</code></td>
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<p>
Allocate internal object <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>market</em>&nbsp;</td><td>
internal object tag </td></tr>
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</dl><dl compact><dt><b>Returns: </b></dt><dd>
oid of allocated object </dl>    </td>
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<a name="dbSubSqlb33" doxytag="dbDatabase::allocateRow"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::allocateRow </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">oid_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>tableId</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>oid_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>oid</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 class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [protected]</code></td>
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<p>
Allocate record with specified OID <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>tableId</em>&nbsp;</td><td>
object identifier of the table </td></tr>
<tr><td valign=top><em>oid</em>&nbsp;</td><td>
record OID </td></tr>
<tr><td valign=top><em>size</em>&nbsp;</td><td>
size of the created record as table descriptor in the database </td></tr>
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<a name="dbSubSqlb32" doxytag="dbDatabase::allocateRow"></a><p>
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          <td class="md" nowrap valign="top"> oid_t dbDatabase::allocateRow </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">oid_t&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>tableId</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 class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [inline, protected]</code></td>
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<p>
Allocate record  <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>tableId</em>&nbsp;</td><td>
object identifier of the table </td></tr>
<tr><td valign=top><em>size</em>&nbsp;</td><td>
size of the created record as table descriptor in the database </td></tr>
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<a name="dbSubSqla27" doxytag="dbDatabase::allowColumnsDeletion"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::allowColumnsDeletion </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">bool&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>enabled</em> = true          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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<p>
Enable deletion of columns from the table when correspondent fields are renamed from class descriptor. By default it is switched of  and database allows to delete fields only from empty table (to prevent  unindented loose of data).  <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>enabled</em>&nbsp;</td><td>
true to enable column deletion in non empty tables </td></tr>
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<a name="dbSubSqla18" doxytag="dbDatabase::assign"></a><p>
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          <td class="md" nowrap valign="top"> void dbDatabase::assign </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="classdbTableDescriptor.html">dbTableDescriptor</a> &amp;&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> [inline]</code></td>
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