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Can anyone tell me the exact difference between the two fields BYTES_CACHED AND BYTES_USED of V$TEMP_EXTENT_POOL
I need to find out the %used or % free space of the temporary tablespace which is locally managed.
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Use this script to get your results:
SELECT Substr(df.tablespace_name,1,20) "Tablespace Name",
Substr(df.file_name,1,40) "File Name",
Round(df.bytes/1024/1024,2) "Size (M)",
Round(e.used_bytes/1024/1024,2) "Used (M)",
Round(f.free_bytes/1024/1024,2) "Free (M)",
Rpad(' '|| Rpad ('X',Round(e.used_bytes*10/df.bytes,0), 'X'),11,'-') "% Used"
FROM DBA_DATA_FILES DF,
(SELECT file_id,
Sum(Decode(bytes,NULL,0,bytes)) used_bytes
FROM dba_extents
GROUP by file_id) E,
(SELECT Max(bytes) free_bytes,
file_id
FROM dba_free_space
GROUP BY file_id) f
WHERE e.file_id (+) = df.file_id
AND df.file_id = f.file_id (+)
ORDER BY df.tablespace_name,
df.file_name
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