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  • oracle 查看各表空间剩余量

    1、查看所有表空间大小、剩余量:

    select dbf.tablespace_name,
    dbf.totalspace "总量(M)",
    dbf.totalblocks as 总块数,
    dfs.freespace "剩余总量(M)",
    dfs.freeblocks "剩余块数",
    (dfs.freespace / dbf.totalspace) * 100 "空闲比例" 
    from (select t.tablespace_name,
    sum(t.bytes) / 1024 / 1024 totalspace,
    sum(t.blocks) totalblocks
    from dba_data_files t
    group by t.tablespace_name) dbf,
    (select tt.tablespace_name,
    sum(tt.bytes) / 1024 / 1024 freespace,
    sum(tt.blocks) freeblocks
    from dba_free_space tt
    group by tt.tablespace_name) dfs
    where trim(dbf.tablespace_name) = trim(dfs.tablespace_name)

    2、查看当前用户各表所占表空间

    Select Segment_Name,Sum(bytes)/1024/1024 From User_Extents Group By Segment_Name

    3.  使用如下语句查看一下谁在用临时段
    SELECT se.username, se.SID, se.serial#, se.sql_address, se.machine, se.program, su.TABLESPACE,  su.segtype,  su.CONTENTS
    FROM v$session se, v$sort_usage su
        WHERE se.saddr = su.session_addr;

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  • 原文地址:https://www.cnblogs.com/lcword/p/8017063.html
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