Issue With EXPDP Full Tablespace I am trying to export schema with below command using expdp in Oracle 18c XE , the schema uses tablespace  named &quot;testtablespace&quot;
expdp myschema/*******@//localhost:1521/XEPDB1 schemas=myschema directory=DATA_PUMP_DIR dumpfile=myschema.dmp logfile=myschema.log

the tablespace &quot;testtablespace&quot; has maximum size of 100MB and currently 70MB of it is utilized , upon running above command I get error
ORA-01654: unable to extend index TESTTABLESPACE.SYS_MTABLE_0000357BA_IND_2 by 8 in tablespace testtablespace

When I increase size of tablespace size the issue is fixed , it seems like during export the tablespace of schema is being used for some temporary data storage
Is there a way that I can specify a temporary tablespace to be used instead of my schema tablespace so that even if my schema tablespace is completely full it can still export schema using expdp without any issue?
Tracking Progress Within a Job

While the data and metadata are being transferred, a master table is
used to track the progress within a job.
...
The master table is created in the schema of the current user
performing the export or import operation. Therefore, that user must
have the CREATE TABLE system privilege and a sufficient tablespace
quota for creation of the master table.

So alter the user performing the export to have another default tablespace. That way the master table will be created in another tablespace.