Can't serialize access for this transaction
以 SERIALIZABLE 隔离级别运行的事务尝试修改在可序列化事务开始后被另一个事务更改的数据。
SELECT sid, serial#, status, isolation_level FROM v$transaction t JOIN v$session s ON t.addr = s.taddr;SELECT * FROM v$lock WHERE type = 'TX' AND request > 0;