检查表空间各个数据文件使用情况的语句

Inkcup

SELECT a.tablespace_name "tbs_name",
       b.file_name "tbs_file",
       total "tbs_size",
       free "tbs_free",
       (total - free) "tbs_used_size",
       total / (1024 * 1024 * 1024) "tbs_size(G)",
       free / (1024 * 1024 * 1024) "tbs_free(G)",
       (total - free) / (1024 * 1024 * 1024) "tbs_can(G)",
       round((total - free) / total, 4) * 100 "pct_used %"
  FROM (SELECT tablespace_name, SUM(bytes) free
          FROM dba_free_space
         GROUP BY tablespace_name) a,
       (SELECT tablespace_name,file_name, SUM(bytes) total
          FROM dba_data_files
         GROUP BY tablespace_name,file_name) b
WHERE a.tablespace_name = b.tablespace_name;