由于之前建立的物化视图有问题，现在通过下面的步骤进行了重建立
step1 、删除订阅段的物化视图
step2、删除源库的log
step3、重建源库的log
step4、重建订阅段的物化试图
step5、删除越来的job
step6、将物化试图和job关联起来
在第一次建立的时候能正常同步，但是之后发现不能刷新，报
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ORA-23401: materialized view "A"."xxx" does not exist
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2566
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2779
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2748
ORA-06512: at line 1
但是在A用户下面的user_mviews又能查的到那个物化试图，现求急救啊~~~~~~~~~~~~~~~~~
ORA-23401: materialized view "string"."string" does not exist
Cause: A materialized view name was given to dbms_mview.refresh that is not in sys.snap$ or its associated views.
Action: Provide a materialized view name that is in sys.snap$, all_mviews or user_mviews.
在user_mviews明明有啊~~
