转载▼ 1、查看表空间的使用状况
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) ",
round((d.Tot_grootte_Mb - f.total_bytes) / d.Tot_grootte_Mb * 100, 2) "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
2、查看无法扩展的段
SELECT segment_name,
segment_type,
owner,
a.tablespace_name "tablespacename ",
initial_extent / 1024 "inital_extent(K) ",
next_extent / 1024 "next_extent(K) ",
pct_increase,
b.bytes / 1024 "tablespace max free space(K) ",
b.sum_bytes / 1024 "total free space(K) "
FROM dba_segments a,
(SELECT tablespace_name, MAX(bytes) bytes, SUM(bytes) sum_bytes
FROM dba_free_space
GROUP BY tablespace_name) b
WHERE a.tablespace_name = b.tablespace_name
AND next_extent > b.bytes
ORDER BY 4, 3, 1