Db2 udb provides a utility , db2ckrst to query the database history and generates a list of timestamps for the backup image that are required for an incremental restore Db2 udb提供了实用程序db2chrst来查询数据库历史，并为增量恢复所需的备份映像生成了一系列时间戳。
Asynchronous operations are typically used to perform tasks that might take a long time to complete , such as opening large files , connecting to remote computers , or querying a database 异步操作通常用于执行完成时间可能较长的任务，如打开大文件、连接远程计算机或查询数据库。
The applications contains computing mountain x ' s coordinate and the lines of resistance , querying the database of faultage , joint and the information of mining engineering 应用程序包括x山的平面直角坐标和高程求解、抵抗线求解、断层及节理信息查询数据库、工程资料查询数据库等。
Query notifications allow programmers to design applications that query the database only when there is a change to information that the application has previously retrieved 查询通知允许程序员设计这样的应用程序：只有在应用程序以前检索的信息发生变化时，该应用程序才查询数据库。
The connection might be used only to query the database or might not be used at all , but the connection manager must enlist the connection anyway , in case an insert or update is performed 连接可能只用于查询数据库或者根本不被使用。但是连接管理器必须征募连接，以备插入或者更新操作。
It is always a good idea in the application . cfm file to set a variable for the data source name , because you will need to reference it every time you make a query to your database 在application . cfm文件中为data source name设置一个变量通常是个好注意，因为每次查询数据库时都需要引用它。
To perform catalog operations , for example , to query the structure of a database or to create database objects such as tables , or to change the data in a database without using a 来执行目录操作（例如查询数据库的结构或创建表等数据库对象） ，或通过执行update 、 insert或delete语句，在不使用
To perform catalog operations for example , querying the structure of a database or creating database objects such as tables ; or to change the data in a database , without using a 执行编录操作（例如查询数据库的结构或创建诸如表等的数据库对象） ，或通过执行update 、 insert或delete语句，在不使用
To perform catalog operations for example , querying the structure of a database or creating database objects such as tables , or to change the data in a database without using a 来执行目录操作（例如查询数据库的结构或创建诸如表等的数据库对象） ，或通过执行update 、 insert或delete语句，在不使用
