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  • orcle linux怎么登陆?全局表空间统计信息怎么查看?表空间内表的统计信息怎么看?数据表的字段怎么查?

    • TBS_STAT表空间统计信息

    https://blog.csdn.net/u013991521/article/details/79293706

    SELECT a.tablespace_name ,
    total / (1024 * 1024 * 1024) total,
    free / (1024 * 1024 * 1024) free,
    (total - free) / (1024 * 1024 * 1024) used,
    round((total - free) / total, 4) * 100 usage_rate
    FROM (SELECT tablespace_name, SUM(bytes) free
    FROM dba_free_space
    GROUP BY tablespace_name) a,
    (SELECT tablespace_name, SUM(bytes) total
    FROM dba_data_files
    GROUP BY tablespace_name) b
    WHERE a.tablespace_name = b.tablespace_name;

    https://blog.csdn.net/wwlhz/article/details/73296430

    • 登录
    • su - oracle
      
      sqlplus / as sysdba
      

        

    • 查表的字段

    SELECT column_name, data_type
    FROM all_tab_cols
    WHERE table_name = 'DBA_DATA_FILES' ;

    • 增加表空间

    https://blog.csdn.net/naruto0025/article/details/78622374

    • 表空间内表统计信息

    https://blog.csdn.net/sayyy/article/details/80006939?utm_source=blogxgwz6

    SELECT SEGMENT_NAME,
    SUM(BYTES) / 1024 / 1024 / 1024,
    OWNER,
    TABLESPACE_NAME
    FROM DBA_SEGMENTS
    WHERE TABLESPACE_NAME = 'TBS_GL_RES'
    GROUP BY SEGMENT_NAME;

    https://www.cnblogs.com/BobXie85/p/9814686.html

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  • 原文地址:https://www.cnblogs.com/NigelLay/p/10605228.html
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