SELECT UPPER(F.TABLESPACE_NAME) "tablespace name",
D.TOT_GROOTTE_MB "tablespace size(M)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES "used(M)",
TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES)
/ D.TOT_GROOTTE_MB * 100,
2),
'990.99') "percent",
F.TOTAL_BYTES "free(M)",
F.MAX_BYTES "max block(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
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