Oracle undo tablespace schema

-- UNDO tablespace usage per user / session
SELECT s.SID, s.USERNAME, round(sum(ss.VALUE) / 1e6, 2) AS UNDO_SIZE_MB,
       sql.ELAPSED_TIME, sql.SQL_TEXT
FROM V$SESSTAT ss JOIN V$SESSION s ON s.SID = ss.SID
     JOIN V$STATNAME STAT ON STAT.STATISTIC# = ss.STATISTIC#
     LEFT JOIN V$SQLAREA sql 
     	ON s.SQL_ADDRESS = sql.ADDRESS AND s.SQL_HASH_VALUE = sql.HASH_VALUE
WHERE STAT.NAME = 'undo change vector size' AND s.TYPE <> 'BACKGROUND' 
  AND s.USERNAME IS NOT NULL AND ss.VALUE >= 0.01 * 1e6
GROUP BY s.SID, s.USERNAME, sql.ELAPSED_TIME, sql.SQL_TEXT
ORDER BY s.USERNAME, round(sum(ss.VALUE) / 1e6, 2);

Source: dba.stackexchange.com

Similar codes

1 vote148 views2 answers
Sql drop multiple columns if exists
SQL
0 vote131 views1 answer
Mysql add comment to column
SQL
0 vote150 views1 answer
Install package for sqlserver in asp.net core
SQL
0 vote135 views1 answer
Mysql default timestamp value to be current timestamp
SQL
0 vote134 views1 answer
Write SQL in ruby on rails
SQL
0 vote146 views1 answer
Drush run sql select
SQL
0 vote126 views1 answer
Which is the order of precedence among following operator IN OUT AND OR in sql
SQL
20 votes149 views6 answers
Mysql reset auto increment
SQL
0 vote165 views1 answer
Local pg_sql to heroku pg_sql
SQL
0 vote142 views1 answer
Select * from mysql.proc
SQL