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?>
<div id="book.dba" class="book">
 
 <h1 class="title">Database (dbm-style) Abstraction Layer</h1>
 

 
 <div id="intro.dba" class="preface">
  <h1 class="title">简介</h1>
  <p class="simpara">
   These functions build the foundation for accessing Berkeley DB
   style databases.
  </p>
  <p class="simpara">
   This is a general abstraction layer for several file-based databases.
   As such, functionality is limited to a common subset of features
   supported by modern databases such as
   <a href="https://www.oracle.com/database/berkeley-db/db.html" class="link external">&raquo;&nbsp;Oracle Berkeley DB</a>.
  </p>
 </div>
 

 




 




 





 
 



 
 







<ul class="chunklist chunklist_book"><li><a href="dba.setup.php">安装/配置</a><ul class="chunklist chunklist_book chunklist_children"><li><a href="dba.requirements.php">需求</a></li><li><a href="dba.installation.php">安装</a></li><li><a href="dba.configuration.php">运行时配置</a></li><li><a href="dba.resources.php">资源类型</a></li></ul></li><li><a href="dba.constants.php">预定义常量</a></li><li><a href="dba.examples.php">示例</a><ul class="chunklist chunklist_book chunklist_children"><li><a href="dba.example.php">Basic usage</a></li></ul></li><li><a href="class.dba-connection.php">Dba\Connection</a> — The Dba\Connection class</li><li><a href="ref.dba.php">DBA 函数</a><ul class="chunklist chunklist_book chunklist_children"><li><a href="function.dba-close.php">dba_close</a> — 关闭 DBA 数据库</li><li><a href="function.dba-delete.php">dba_delete</a> — 删除由键指定的 DBA 条目</li><li><a href="function.dba-exists.php">dba_exists</a> — 检查键是否存在</li><li><a href="function.dba-fetch.php">dba_fetch</a> — 获取由键指定的数据</li><li><a href="function.dba-firstkey.php">dba_firstkey</a> — 获取第一个键</li><li><a href="function.dba-handlers.php">dba_handlers</a> — 列出所有可用的处理器</li><li><a href="function.dba-insert.php">dba_insert</a> — 插入条目</li><li><a href="function.dba-key-split.php">dba_key_split</a> — 将键的字符串表示分割为数组表示</li><li><a href="function.dba-list.php">dba_list</a> — 列出所有打开的数据库文件</li><li><a href="function.dba-nextkey.php">dba_nextkey</a> — 获取下一个键</li><li><a href="function.dba-open.php">dba_open</a> — 打开数据库</li><li><a href="function.dba-optimize.php">dba_optimize</a> — 优化数据库</li><li><a href="function.dba-popen.php">dba_popen</a> — 打开数据库持久化</li><li><a href="function.dba-replace.php">dba_replace</a> — 替换或插入条目</li><li><a href="function.dba-sync.php">dba_sync</a> — 同步数据库</li></ul></li></ul></div><?php manual_footer($setup); ?>