Oracle Database Error Code ORA-99 Description :
timed out while waiting for resource, potential PDML deadlock
Error Cause:
The resource needed by the transaction was busy. The PDML transaction could not acquire the resource within the specified amount of time. This indicates potential deadlock involving this PDML transaction and other transactions currently running in the system.
How to Solve :
Increase the value of the PARALLEL_TRANSACTION_RESOURCE_TIMEOUT parameter; then retry the operation.
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