ORA-31446: this session does not own the lock handle for string
Cause: CDC attempted to acquire a lock on the resource, does not own the the lock associated with the lock. This is an internal error.
Action: Contact Oracle corporation
ORA-31446: 这个错误表明，当前会话没有指定的锁句柄（lock handle）的所有权。该错误可能在使用DBMS_LOCK.release时出现。