Great Explanation...! just to clarify whether it possible to use In Memory columnar store feature enable and move the specific MVs which contains less columns with large amount of row retrievals to gain performance booster respectively ?
Yes, mviews can go in the in-memory store. I would perhaps be cautious about full refresh mviews, because a repeated full refreshes means refreshing the column store every time
Hi this helpful, but for some reason it asks me that I need to declare mview_name. Not sure if its because I am running this code in SQL developer and should run it from the command shell
Technically, different MViews in a schema would have been built for different purposes (user requirements). So, they are [expected] to be refreshed at different times / intervals. If you need multiple MVs refreshed together, define a Refresh Group.
Great Explanation...! just to clarify whether it possible to use In Memory columnar store feature enable and move the specific MVs which contains less columns with large amount of row retrievals to gain performance booster respectively ?
Yes, mviews can go in the in-memory store. I would perhaps be cautious about full refresh mviews, because a repeated full refreshes means refreshing the column store every time
Great explanation, thanks so much!
Glad it was helpful!
Hi this helpful, but for some reason it asks me that I need to declare mview_name. Not sure if its because I am running this code in SQL developer and should run it from the command shell
Not sure what you mean. Can you elucidate?
Technically, different MViews in a schema would have been built for different purposes (user requirements). So, they are [expected] to be refreshed at different times / intervals.
If you need multiple MVs refreshed together, define a Refresh Group.
How do you define a refresh group?
How can we improve materialized views based on complex queries such as join and union and make quicker refresh ?
Use DBMS_MVIEW.EXPLAIN_MVIEW to see what is missing in your definition and/or mview log to permit fast refresh
Aah ! How many times do developers and DBAs use / configure an account with the DBA role when the DBA role isn't required !
indeed :-)
TLDR, Refresh all mviews refreshes all mviews :)