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常用巡检语句(oracle)

  1. 查表空间大小

    SELECT Upper(F.TABLESPACE_NAME) “表空间名”,
    D.TOT_GROOTTE_MB “表空间大小(M)“,
    D.TOT_GROOTTE_MB - F.TOTAL_BYTES “已使用空间(M)“,
    To_char(Round(( D.TOT_GROOTTE_MB - F.TOTAL_BYTES ) / D.TOT_GROOTTE_MB * 100, 2), ‘990.99‘)
    || ‘%‘ “使用比”,
    F.TOTAL_BYTES “空闲空间(M)“,
    F.MAX_BYTES “最大块(M)”
    FROM (SELECT TABLESPACE_NAME,

    Round(Sum(BYTES) / ( 1024 * 1024 ), 2) TOTAL_BYTES,
           Round(Max(BYTES) / ( 1024 * 1024 ), 2) MAX_BYTES
    FROM   SYS.DBA_FREE_SPACE
    GROUP  BY TABLESPACE_NAME) F,

    (SELECT DD.TABLESPACE_NAME,

    Round(Sum(DD.BYTES) / ( 1024 * 1024 ), 2) TOT_GROOTTE_MB
    FROM   SYS.DBA_DATA_FILES DD
    GROUP  BY DD.TABLESPACE_NAME) D

    WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME
    ORDER BY 1

常用巡检语句(oracle)