oracle including new values,物化视图日志加不加INCLUDING NEW VALUES有什么影响
滿意答案
ap.jil
2016.06.30
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NEW VALUES Clause
The NEW VALUES clause lets you determine whether Oracle Database saves both old and new values for update DML operations in the materialized view log.
See Also:
"Including New Values in Materialized View Logs: Example"
INCLUDING
Specify INCLUDING to save both new and old values in the log. If this log is for a table on which you have a single-table materialized aggregate view, and if you want the materialized view to be eligible for fast refresh, then you must specify INCLUDING.
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