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

0 vote219 views1 answer
Install squirrel sql ubuntu
SQL
0 vote126 views1 answer
How to set field to null in sql
SQL
1 vote128 views1 answer
Oracle character set
SQL
8 votes167 views2 answers
Mysql query dates between two dates
SQL
1 vote187 views1 answer
Alter constraint in sql
SQL
3 votes166 views1 answer
Oracle user quota unlimited
SQL
1 vote163 views3 answers
How to truncate foreign key constraint table
SQL
12 votes182 views5 answers
Sql primary key
SQL
4 votes169 views2 answers
Sql server date now
SQL
3 votes181 views2 answers
How to start mysql in terminal
SQL