impdp ... TABLES=SCOTT.DATA_TABLE LOGTIME=ALL TRACE=128000 If the problem relates to storage or segments:
In this article, we will dissect this error, explain the role of the KUPW-WORKER and the PREPARE-DATA-IMP phase, explore the most common causes (including the often-seen "71" sub-code), and provide actionable step-by-step solutions. What is ORA-39126? The full error message usually appears as:
ALTER SYSTEM SET PGA_AGGREGATE_TARGET=2G SCOPE=BOTH; Also, reduce the number of parallel workers: The full error message usually appears as: ALTER
Introduction Oracle Data Pump is the backbone of modern Oracle database migrations, backups, and ETL processes. It is praised for its speed, parallelism, and fine-grained object control. However, when it fails, it often fails cryptically. Among the most dreaded errors encountered by database administrators (DBAs) is:
SELECT * FROM v$pgastat; Increase PGA_AGGREGATE_TARGET dynamically: Among the most dreaded errors encountered by database
impdp ... ACCESS_METHOD=EXTERNAL_TABLE Or:
ALTER TABLE problematic_table DISABLE ALL TRIGGERS; ALTER TABLE problematic_table MODIFY lob_column (lob_storage AS basicfile); During the import, monitor PGA usage: During the import
SELECT object_name, status FROM user_datapump_jobs; SELECT * FROM user_load_objects WHERE job_name = 'YOUR_JOB_NAME'; Look for the last successfully processed object before the failure. Often, the real error is hidden. Query the Data Pump job’s log file or use: