表空间统计.sql

oracle 10g管理员管理数据库SQL,好资料！

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 4 DESC;