Why is oracle database 11g eating disk space fast?

Question

Oracle

Hello! There is a DB Orakl 11g. The base is not big. One job is constantly running, which performs selects, updates and deleting records in some table. A stored procedure is also called that creates/deletes or modifies the user's schema. The problem is that this job or procedure quickly consumes hard disk space. Audit is disabled. Who can tell what is the reason?

Answer 1

Maybe undo tablespace takes up a lot of space?

Answer 2

fulfilled

SELECT DISTINCT STATUS,TABLESPACE_NAME, SUM(BYTES)/1024/1024, COUNT(*) 
FROM DBA_UNDO_EXTENTS 
GROUP BY STATUS, TABLESPACE_NAME;

I got the size of EXPIRED and UNEXPIRED, they are only 1 and 9 MB each, so that's not the point.