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Can a SCD 2 table have non SCD columns?
Lets say there is a table schema where in the columns are a,b,c,d,start_time,end_time,current_status.
Can we have a,b,c as SCD columns and let d not be a part of SCD logic so that if d changes, it won...
Parijat Bose
Votes: 0
Answers: 2
How to optimize materialized views when data volume and velocity increase in redshift?
I created materialized views in Redshift. Data is growing incrementally day by day, will the performance (such as duration of query result) of these materialized views be affected as the size of the d...
Tülin Çakmak Işıkkent
Votes: 0
Answers: 1
Should I use multiple fact tables for each grain or just aggregate from lowest grain?
Fairly new to data warehouse design and star schemas. We have designed a fact table which is storing various measures about Memberships, our grain is daily and some of the measures in this table are t...
Niall Nicholls
Votes: 0
Answers: 1
Apache Kylin - how to solve cube build error problem
When i built kylin_sales_cube in Apache Kylin,i get the error:
ERROR [main] org.apache.kylin.engine.mr.KylinReducer:java.lang.NoSuchMethodError: org.apache.hadoop.fs.FileSystem.setStoragePolicy(Lorg/a...
zgg
Votes: 0
Answers: 1