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  • OCP-1Z0-053-V13.02-632题

    632.Note the following parameter settings: Which setting is NOT allowed?


    A. ALTER SYSTEM SET DB_CACHE_SIZE=50M;

    B. ALTER SYSTEM SET DB_8K_CACHE_SIZE=10M;

    C. ALTER SYSTEM SET DB_4K_CACHE_SIZE=10M;

    D. ALTER SYSTEM SET DB_16K_CACHE_SIZE=10M;

    Answer: B

    答案解析:

    根据db_block_size=8192可知,该数据库的标准块是8k,且不能改变标准块的大小。

    sys@TEST1107> ALTER SYSTEM SET DB_8K_CACHE_SIZE=10M;

    ALTER SYSTEM SET DB_8K_CACHE_SIZE=10M

    *

    ERROR at line 1:

    ORA-32017: failure in updating SPFILE

    ORA-00380: cannot specify db_8k_cache_size since 8K is the standard block size


     sys@TEST1107> ALTER SYSTEM SET DB_CACHE_SIZE=50M;


    System altered.


    sys@TEST1107> ALTER SYSTEM SET DB_4K_CACHE_SIZE=10M;


    System altered.


    sys@TEST1107> ALTER SYSTEM SET DB_16K_CACHE_SIZE=10M;


    System altered.

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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13316262.html
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