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    <p ALIGN="JUSTIFY">TABLE_NAME</p>
    <p ALIGN="JUSTIFY">COLUMN_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaConstraintColumnUsage</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</p>
    <p ALIGN="JUSTIFY">COLUMN_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaConstraintTableUsage</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaForeignKeys</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">PK_TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">PK_TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">PK_TABLE_NAME</p>
    <p ALIGN="JUSTIFY">FK_TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">FK_TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">FK_TABLE_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaIndexs</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">INDEX_NAME</p>
    <p ALIGN="JUSTIFY">TYPE</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaKeyColumnUsage</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">CONSTRAINT_CATALOG</p>
    <p ALIGN="JUSTIFY">CONSTRAINT_SCHEMA</p>
    <p ALIGN="JUSTIFY">CONSTRAINT_NAME</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</p>
    <p ALIGN="JUSTIFY">COLUMN_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaPrimaryKeys</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">PK_TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">PK_TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">PK_TABLE_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaProcedureColumns</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">PROCEDURE_CATALOG</p>
    <p ALIGN="JUSTIFY">PROCEDURE_SCHEMA</p>
    <p ALIGN="JUSTIFY">PROCEDURE_NAME</p>
    <p ALIGN="JUSTIFY">COLUMN_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaProcedureParameters</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">PROCEDURE_CATALOG</p>
    <p ALIGN="JUSTIFY">PROCEDURE_SCHEMA</p>
    <p ALIGN="JUSTIFY">PROCEDURE_NAME</p>
    <p ALIGN="JUSTIFY">PARAMETER_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaProcedures</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">PROCEDURE_CATALOG</p>
    <p ALIGN="JUSTIFY">PROCEDURE_SCHEMA</p>
    <p ALIGN="JUSTIFY">PROCEDURE_NAME</p>
    <p ALIGN="JUSTIFY">PARAMETER_TYPE</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaProviderTypes</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">DATA_TYPE</p>
    <p ALIGN="JUSTIFY">BEST_MATCH</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaReferentialConstraints</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">CONSTRAINT_CATALOG</p>
    <p ALIGN="JUSTIFY">CONSTRAINT_SCHEMA</p>
    <p ALIGN="JUSTIFY">CONSTRAINT_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaSchemata</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">CATALOG_NAME</p>
    <p ALIGN="JUSTIFY">SCHEMA_NAME</p>
    <p ALIGN="JUSTIFY">SCHEMA_OWNER</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaSQLLanguages</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">没有</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaStatistics</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaTableConstraints</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">CONSTRAINT_CATALOG</p>
    <p ALIGN="JUSTIFY">CONSTRAINT_SCHEMA</p>
    <p ALIGN="JUSTIFY">CONSTRAINT_NAME</p>
    <p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</p>
    <p ALIGN="JUSTIFY">CONSTRAINT_TYPE</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaTablePriviledge</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</p>
    <p ALIGN="JUSTIFY">GRANTOR</p>
    <p ALIGN="JUSTIFY">GRANTEE</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaTables</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</p>
    <p ALIGN="JUSTIFY">TABLE_TYPE</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaTranslations</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TRANSLATION_CATALOG</p>
    <p ALIGN="JUSTIFY">TRANSLATION_SCHEMA</p>
    <p ALIGN="JUSTIFY">TRANSLATION_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaUsagePrivileges</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">OBJECT_CATALOG</p>
    <p ALIGN="JUSTIFY">OBJECT_SCHEMA</p>
    <p ALIGN="JUSTIFY">OBJECT_NAME</p>
    <p ALIGN="JUSTIFY">OBJECT_TYPE</p>
    <p ALIGN="JUSTIFY">GRANTOR</p>
    <p ALIGN="JUSTIFY">GRANTEE</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaViewColumnUsage</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">VIEW_CATALOG</p>
    <p ALIGN="JUSTIFY">VIEW_SCHEMA</p>
    <p ALIGN="JUSTIFY">VIEW_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaViewTableUsage</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">VIEW_CATALOG</p>
    <p ALIGN="JUSTIFY">VIEW_SCHEMA</p>
    <p ALIGN="JUSTIFY">VIEW_NAME</font></td>
  </tr>
  <tr>
    <td WIDTH="51%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adSchemaViews</font></td>
    <td WIDTH="49%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">TABLE_CATALOG</p>
    <p ALIGN="JUSTIFY">TABLE_SCHEMA</p>
    <p ALIGN="JUSTIFY">TABLE_NAME</font></td>
  </tr>
</table>
<font FACE="宋体" LANG="ZH-CN"><b>

<p ALIGN="JUSTIFY">RollbackTrans</p>
</b></font><font FACE="宋体" LANG="ZH-CN" SIZE="3">

<p ALIGN="JUSTIFY">防止在当前事务事件中的所有数据库的变化得以进行。一般在调用BeginTrans方法后执行。</p>
</font><b><font FACE="宋体" LANG="ZH-CN" SIZE="4">

<p ALIGN="JUSTIFY">属性</p>
</font><font FACE="宋体" LANG="ZH-CN">

<p ALIGN="JUSTIFY">Attributes</p>
</font></b><font FACE="宋体" LANG="ZH-CN" SIZE="3">

<p ALIGN="JUSTIFY">指明事务过程的属性。下表中的常数可以读或设置。</p>
</font>

<table BORDER="1" CELLSPACING="2" BORDERCOLOR="#008000" CELLPADDING="7" WIDTH="532">
  <tr>
    <td WIDTH="31%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">常数</font></td>
    <td WIDTH="69%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">描述</font></td>
  </tr>
  <tr>
    <td WIDTH="31%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adXactCommitRetaining</font></td>
    <td WIDTH="69%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">指明在调用CommitTrans方法时会自动开始一个新的事务过程。</font></td>
  </tr>
  <tr>
    <td WIDTH="31%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">adXactAbortRetaining</font></td>
    <td WIDTH="69%" VALIGN="TOP"><font FACE="宋体" LANG="ZH-CN" SIZE="3"><p ALIGN="JUSTIFY">指明在调用RollbackTrans方法时会自动开始一个新的事务过程。</font></td>
  </tr>
</table>
<font FACE="宋体" LANG="ZH-CN"><b>

<p ALIGN="JUSTIFY">CommandTimeOut</p>
</b></font><font FACE="宋体" LANG="ZH-CN" SIZE="3">

<p ALIGN="JUSTIFY">指明所有依靠数据连接的对象等待数据提供者回应的时间长度,以秒为单位。缺省时该属性的值为30。如果你设置该属性的值为0,ADO会永远的等待服务器的回应。</p>
</font><font FACE="宋体" LANG="ZH-CN"><b>

<p ALIGN="JUSTIFY">ConnectionString</p>
</b></font><font FACE="宋体" LANG="ZH-CN" SIZE="3">

<p ALIGN="JUSTIFY">指明数据源(DSN)的名称或者包含以分号隔开的参数和值对的连接字符串。比如,下面的例子适用于SQL 
Server。</p>

<p ALIGN="JUSTIFY">dsn=MyDatabase;uid=MyLoginName;pwd=MyPassword</p>

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