Establishes a connection with the support database and provides access methods to query and update the database.
建立一个到支持数据库的连接，提供一些访问方法来查询和更新数据库。
The same applies to the result set entries when a user queries items on the Business Process Choreographer database view using one of the query API methods (see Resources).
当用户使用query API方法之一在业务流程编排数据库视图中查询项时，结果集项的情况也是如此(请参阅参考资料)。
The data Access Object got several finder methods to query the database.
数据访问对象(Data Access Object)有一些搜索方法以查询数据库。
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