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joaovitor/oracle-tablespace-fragmentation.sql

Created December 27, 2012 12:02
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oracle-tablespace-fragmentation.sql
SELECT TABLESPACE_NAME,
COUNT( *) FREE_CHUNKS,
DECODE( ROUND((MAX(BYTES) / 1024000),2), NULL,0, ROUND((MAX(BYTES) / 1024000),2)) LARGEST_CHUNK,
NVL(ROUND(sqrt(MAX(BLOCKS)/SUM(BLOCKS))*(100/sqrt(sqrt(COUNT(BLOCKS)) )),2), 0) FRAG_INDEX
FROM SYS.DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME
ORDER BY 4 DESC, 1;
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