DB2 provides various utilities, such as RUNSTATS, REORG and REORGCHK, to improve database performance.
DB 2提供了各种实用程序来提高数据库性能，如RUNSTATS、REORG和REORGCHK。
Those tools include higher-level languages, integrated development environments (IDEs), and various utilities for shortening and automating common tasks.
这些工具包括高级语言、集成开发环境（integrated development environment，IDE）和各种用于简化和自动化常见任务的实用工具。
Most often, the name "Linux" is used to refer to the Linux Operating System.An OS includes the kernel, but also adds various utilities - the kinds of programs you need to get anything done.
Linux经常被用来指Linux操作系统。操作系统包括内核，同时还有各种工具，这些工具是你做任何事都要用到的软件。
Most often, the name "Linux" is used to refer to the Linux Operating System.An OS includes the kernel, but also adds various utilities - the kinds of programs you need to get anything done.
Linux经常被用来指Linux操作系统。操作系统包括内核，同时还有各种工具，这些工具是你做任何事都要用到的软件。
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