select a.tablespace_name "tablespace_name",
total "allspace",
free "freespace",
(total - free) "usedspace",
total / (1024 * 1024 * 1024) "space(G)",
free / (1024 * 1024 * 1024) "freespace(G)",
(total - free) / (1024 * 1024 * 1024) "usedspace(G)",
round((total - free) / total, 4) * 100 "used%"
FROM (SELECT tablespace_name, SUM(bytes) free
FROM dba_free_space
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM(bytes) total
FROM dba_data_files
GROUP BY tablespace_name) b
WHERE a.tablespace_name = b.tablespace_name;
--------------------------------------------------------------
SELECT a.tablespace_name "表空间名",
total "表空间大小",
free "表空间剩余大小",
(total - free) "表空间使用大小",
total / (1024 * 1024 * 1024) "表空间大小(G)",
free / (1024 * 1024 * 1024) "表空间剩余大小(G)",
(total - free) / (1024 * 1024 * 1024) "表空间使用大小(G)",
round((total - free) / total, 4) * 100 "使用率 %"
FROM (SELECT tablespace_name, SUM(bytes) free
FROM dba_free_space
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM(bytes) total
FROM dba_data_files
GROUP BY tablespace_name) b
WHERE a.tablespace_name = b.tablespace_name;
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/31123655/viewspace-2089189/ ，如需转载，请注明出处，否则将追究法律责任。
