ORA-00054: resource busy and acquire with NOWAIT

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ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired
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this error generate while you try to alter object when that object was already been in use, to check who is accessing this object and check if we can kill that session or not if can kill and proceed.
if previous running need to wait until completer wait and rerun your job.


How to check (please modify below scripts as per your requirement owner, object_name, object_type fields)
===========
SELECT OBJECT_ID, SESSION_ID, inst_id FROM GV$LOCKED_OBJECT
WHERE OBJECT_ID=(select object_id FROM dba_objects where object_name='<OBJECT_NAME>' and object_type='<TABLE(or)INDEX>' and owner='<SCHEMA_NAME') ;



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