a)Star Schema - Simple & Much Faster. Denormalized form. b)Snowflake Schema - Complex with more Granularity. More normalized form.
Latest Answer : Is not star schema better performance wise (querying) as it has less no of join due to denormalized structure? Please clarify ...
Orchestrate itself is an ETL tool with extensive parallel processing capabilities and running on UNIX platform. Datastage used Orchestrate with Datastage XE (Beta version of 6.0) to incorporate the parallel
Yes, We can convert by attaching one hierarchy to lowest level of another hierarchy.
Latest Answer : No. It is not possible ...
1 1. Difference between Hashfile and Sequential File?. What is modulus?2 2. What is iconv and oconv functions?.3 3. How can we join one Oracle source and Sequential file?.4 4. How can we implement Slowly Changing Dimensions in DataStage?.5 5. How can we implement Lookup in DataStage Server jobs?.6 6. What are all the third party tools used in DataStage?.7 7. what is the difference between routine and transform and function?.8 8. what are the Job parameters?.9 9. Plug-in?.10 10.How can we improve
Latest Answer : Multi star schema or galaxy schema is one of the type of star schema ...
What is Orchestrate options in generic stage, what are the option names. value ? Name of an Orchestrate operator to call. what are the orchestrate operators available in datastage for AIX environment.
What is Orchestrate Schema? Distinguish internal data type (Orchestrate schema) vs external data type