08175-08190: Discrete Transactions

Cause:	An attempt was made to perform an action that is not currently supported in a discrete transaction.

Action:	Rollback the transaction and retry it as a normal transaction.

ORA-08176 cannot continue consistent read for the table/index - no undo records

Cause:	Oracle encountered an operation that does not generate undo records. For example, the operation might have been an attempt to create an index by performing a direct load or executing a discrete mode transaction.

Action:	Retry the operation with a different snapshot time. If using an index, retry the operation without using the index.

ORA-08177 cannot serialize access for this transaction

Cause:	Oracle encountered data changed by an operation that occurred after the start of this serializable transaction.

Action:	In read/write transactions, retry the intended operation or transaction.