5 Gathering Database Information 取得数据库的信息 10 Removing a Database 删除数据库 9. 5 Joins not based on Equality 不基于相等条件的连接 .
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Be sure to verify that no JVMs are running on the database machine before manually removing a database lock file.
在手动删除数据库锁文件之前，请务必确认在数据库机器上没有JVM在运行。
In this example, you learn how to remove old items from a product inventory by selectively removing rows from your database.
在本例中，您将了解如何通过有选择性地从数据库中删除行把旧项目从产品存货清单中删除。
The CustomerService bean is a utility class that implements methods to access the database for adding, updating, removing, and retrieving customer information.
CustomerService bean是个工具类，它实现了访问数据库以增加、更新、删除和查询用户信息的方法。
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