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  • Oracle查看数据占用的空间和数据文件实际空间的信息

    可以使用如下sql:

    select 'bgdrac' database,t11.username,t11.default_tablespace tablespace_name,segment_size_in_GB,datafile_size_in_gb,tablespace_free_size_in_gb from (select username,default_tablespace from dba_users) t11
    left join
    (
    select nvl(t1.tablespace_name,t2.tablespace_name) tablespace_name,t1.size_in_GB datafile_size_in_GB,t2.size_in_GB segment_size_in_GB,t1.size_in_GB-t2.size_in_GB tablespace_free_size_in_GB from
    (select tablespace_name,sum(bytes)/1024/1024/1024 size_in_GB from dba_data_files group by tablespace_name) t1
    full join
    (select tablespace_name,sum(bytes)/1024/1024/1024 size_in_GB from dba_segments group by tablespace_name) t2 on t2.tablespace_name=t1.tablespace_name) t22 on t22.tablespace_name=t11.default_tablespace
    where t11.default_tablespace<>'USERS'

    以上。

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  • 原文地址:https://www.cnblogs.com/vanwoos/p/10867455.html
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