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  • SCOPE 中 SPFILE、MEMORY、BOTH 的小小区别

    ALTER SYSTEM 中 SCOPE=SPFILE/MEMORY/BOTH 的区别:

    SCOPE = SPFILE
     The change is applied in theserverparameter file only. The effect is as follows:
    ■ For dynamic parameters, the change is effective at the next startup and is persistent.
    ■ For static parameters, the behavior. is the same as for dynamic parameters. This is the only SCOPE specification allowed for static parameters.
    (此更改写入初始化参数文件,更改将在下次启动时生效。动态参数与静态参数都一样可以。也是静态参数唯一可以使用的方式。)

    SCOPE = MEMORY
    The change is applied in memory only. The effect is as follows:
    ■ For dynamic parameters, the effect is immediate, but it is not persistent because the server parameter file is not updated.
    ■ For static parameters, this specification is not allowed.
    (只在内存上修改,立即生效,但重启后将不再生效,因为并没有写入到初始化参数文件。只适用于动态参数,静态参数则不允许。)

    SCOPE = BOTH
    The change is applied in both the server parameter file and memory. The effect is as follows:
    ■ For dynamic parameters, the effect is immediate and persistent.
    ■ For static parameters, this specification is not allowed.
    (既写入到初始化参数文件,也在内存上修改,立即生效。同样也只适用于动态参数,静态参数则不允许。)

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  • 原文地址:https://www.cnblogs.com/timlong/p/5149206.html
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