假如我们使用的临时表空间是temoPRary的,就会在v$sort_segment中显示,假如临时表空是permanent的话,就不会在这个表中进行显示了. Code: [Copy to clipboard]SQL> select tablespace_name,extent_size,total_extents,total_blocks fromv$sort_segment; TABLESPACE_NAME EXTENT_SIZE TOTAL_EXTENTS TOTAL_BLOCKS------------------------------- ----------- ------------- ------------TEMP 128 5999 767872 视图v$sort_usage显示Oracle在如何使用和分配临时段的. Code: [Copy to clipboard]SQL> select username,session_addr,sqladdr,sqlhash,segtype,2 segfile#,segblk#,extents,blocks
3 from v$sort_usage4 / USERNAME SESSION_ADDR SQLADDR SQLHASH------------------------------ ---------------- ---------------- ----------SEGTYPE SEGFILE# SEGBLK# EXTENTS BLOCKS--------- ---------- ---------- ---------- ----------AICBS C0000000D7EF99E8 C0000000E1BFE970 4053158416SORT 1001 379145 231 29568 可以根据session_addr查询v$session得到当前登录用户的session信息, 可以通过sqladdr和sqlhash查询v$sqltext查询这条语句的具体信息 下面的语句可以比较好的监控正在使用的临时段的信息
Code: [Copy to clipboard]select se.username,se.sid,su.extents,su.blocks * to_number(rtrim(p.value)) as Space,tablespace,segtype,sql_textfrom v$sort_usage su,v$parameter p,v$session se,v$sql swhere p.name = 'db_block_size'and su.session_addr = se.saddrand s.hash_value = su.sqlhash and s.address = su.sqladdrorder by se.username, se.sid/
