command to check temp tablespace usage:
SQL>SELECTA.tablespace_name tablespace,
D.mb_total,
SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_used,
D.mb_total - SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_free
FROM
v$sort_segment A,
(
SELECT
B.name,
C.block_size,
SUM (C.bytes) / 1024 / 1024 mb_total
FROM
v$tablespace B,
v$tempfile C
WHERE
B.ts#= C.ts#
GROUP BY
B.name,
C.block_size
) D
WHERE
A.tablespace_name = D.name
GROUP by
A.tablespace_name,
D.mb_total
/
O/P:
TABLESPACE MB_TOTAL MB_USED MB_FREE
------------------------------- ---------- ---------- ----------
TEMP 353 13 340
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