zoukankan      html  css  js  c++  java
  • oracle 11g 表空间使用率

    Oracle数据库表空间使用量查询:

    select b.file_name 物理文件名,
    b.tablespace_name 表空间,
    b.bytes/1024/1024 大小M,
    (b.bytes-sum(nvl(a.bytes,0)))/1024/1024 已使用M,
    substr((b.bytes-sum(nvl(a.bytes,0)))/(b.bytes)*100,1,5) 利用率
    from dba_free_space a,dba_data_files b
    where a.file_id=b.file_id
    group by b.tablespace_name,b.file_name,b.bytes
    order by b.tablespace_name;

    -------------------------------------------------------------

    SELECT D.TABLESPACE_NAME, 
    SPACE || 'M' "SUM_SPACE(M)", 
    BLOCKS "SUM_BLOCKS", 
    SPACE - NVL (FREE_SPACE, 0) || 'M' "USED_SPACE(M)", 
    ROUND ( (1 - NVL (FREE_SPACE, 0) / SPACE) * 100, 2) || '%' 
    "USED_RATE(%)", 
    FREE_SPACE || 'M' "FREE_SPACE(M)" 
    FROM ( SELECT TABLESPACE_NAME, 
    ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE, 
    SUM (BLOCKS) BLOCKS 
    FROM DBA_DATA_FILES 
    GROUP BY TABLESPACE_NAME) D, 
    ( SELECT TABLESPACE_NAME, 
    ROUND (SUM (BYTES) / (1024 * 1024), 2) FREE_SPACE 
    FROM DBA_FREE_SPACE 
    GROUP BY TABLESPACE_NAME) F 
    WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+) 
    UNION ALL --如果有临时表空间 
    SELECT D.TABLESPACE_NAME, 
    SPACE || 'M' "SUM_SPACE(M)", 
    BLOCKS SUM_BLOCKS, 
    USED_SPACE || 'M' "USED_SPACE(M)", 
    ROUND (NVL (USED_SPACE, 0) / SPACE * 100, 2) || '%' "USED_RATE(%)", 
    NVL (FREE_SPACE, 0) || 'M' "FREE_SPACE(M)" 
    FROM ( SELECT TABLESPACE_NAME, 
    ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE, 
    SUM (BLOCKS) BLOCKS 
    FROM DBA_TEMP_FILES 
    GROUP BY TABLESPACE_NAME) D, 
    ( SELECT TABLESPACE_NAME, 
    ROUND (SUM (BYTES_USED) / (1024 * 1024), 2) USED_SPACE, 
    ROUND (SUM (BYTES_FREE) / (1024 * 1024), 2) FREE_SPACE 
    FROM V$TEMP_SPACE_HEADER 
    GROUP BY TABLESPACE_NAME) F 
    WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+) 
    ORDER BY 1;

  • 相关阅读:
    centos 修改语言、时区
    去除 ufeff
    Docker介绍及使用
    消息队列
    数据结构与算法
    Haystack
    Python面向对象之魔术方法
    关于Redis处理高并发
    Redis
    RESTful规范
  • 原文地址:https://www.cnblogs.com/hankyoon/p/5174547.html
Copyright © 2011-2022 走看看