Ora-39126 Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71 //top\\ -

Arthur let out a breath he didn’t know he was holding. It wasn’t corruption. It wasn't a hardware failure. The worker process— KUPW$WORKER —had tried to prepare a chunk of data for import, hit a wall, and threw its hands up in a "fatal error."

Increase PGA_AGGREGATE_TARGET dynamically: Arthur let out a breath he didn’t know he was holding

SELECT * FROM v$pgastat;