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how the materialized view log clear its data

xiong feng
xiong feng asked
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Last Modified: 2017-12-02
when a base table have 2 or more materialized views ,those reference the same materialized view log(mlog).i know that all of the materialized views are refreshed so the data in the mlog can be clear.but i do not know how the database know that how many materialized views on the base table?
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