ORA-00054 resource busy and acquire with NOWAIT specified
Cause: The NOWAIT keyword forced a return to the command prompt because a resource was unavailable for a LOCK TABLE or SELECT FOR UPDATE command.
Action: Try the command after a few minutes or enter the command without the NOWAIT keyword.
pzrjl's answer is right.
You must use the trigger in oracle when
you insert or update the table.
Otherwise the table will be locked when
the customers write the data into the table.
ORA-00054 resource busy and acquire with NOWAIT specified
原因: The NOWAIT keyword forced a return to the command prompt because a resource was unavailable for a LOCK TABLE or SELECT FOR UPDATE command.
解决办法:Try the command after a few minutes or enter the command without the NOWAIT keyword.