ORA-44803: Plan is in transition (about to be activated)
Cause: New plan was attempted to be created before activating the current plan.
Action: Completely submit the current plan and activate it.
ORA-44803 是一个SQL计划转变异常，它指出操作失败，说明SQL计划正在激活，正处于转变当中。
44803, 00000, “plan is in transition (about to be activated)”
// *Cause: A SQL plan was specified for an operation, but the plan is in
// the middle of the operations required to make it the current plan.
// *Action: Wait until the plan transitions and then retry the operation.
ORA-44803 可以在想要激活一个包被执行的时候发生，或者当某个SQL正在准备实施变化的时候也可能发生。
1.停止对SQL计划所作进一步更改或者操作；
2.稍等片刻，直到SQL计划转变完毕；
3.再次尝试，重新执行相应操作。