SELECT F.TABLESPACE_NAME,
(T.TOTAL_SPACE - F.FREE_SPACE) / 1024 “USED (GB)”,
F.FREE_SPACE / 1024 “FREE (GB)”,
T.TOTAL_SPACE / 1024 “TOTAL(GB)”,
(ROUND((F.FREE_SPACE / T.TOTAL_SPACE) * 100)) || '% ’
PER_FREE
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BLOCKS *
(SELECT PARA_VALUE / 1024
FROM V$DM_INI
WHERE PARA_NAME =
‘GLOBAL_PAGE_SIZE’) / 1024)) FREE_SPACE
FROM DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME) F,
(SELECT TABLESPACE_NAME, ROUND(SUM(BYTES /
1048576)) TOTAL_SPACE
FROM DBA_DATA_FILES
GROUP BY TABLESPACE_NAME) T
WHERE F.TABLESPACE_NAME = T.TABLESPACE_NAME;