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If I have table T1 and table T2 T1 has 250 cols and 10,000 rows T2 has 2 billion rows and 10 cols Which one would be Fact table and which one would be Dimension table and why ?
3 9306Select * from emp,dept,loc where emp.deptno left outer join dept.deptno and dept.locno=loc.locno. No need to consider the syntax but is it possible to have left outer join and equi join in the same SQL like this ? can we have right outer join and left outer join in the same SQL ---
1 7804if we increase the number of dimensions will the rows in fact table increase or decrease??
IBM,
3 9592How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.
1 4220How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.
IBM,
1 5556Business rule implemntation depends on? 1.)ETL requiremnts 2.)ETL performance 3.)business requirements.
4 8038in siebel analytics by using dashboard prompts in a page have 2 reports so i have to give dashboard prompt to applied on first report only that will not applied to 2 report how it will do
IBM,
1 4820hi i have 2 users and 4 reports in dashboard.i have to give rights 2 reports for every users. is it possible give the rights in dashboard.if yes plz let me know how is it possible . thanks in advacne for appreciation. bye rohit
L&T,
2050If your client approaches you and says that he wants to create a Datawarehouse, and provides just the info regarding his source systems. What are all the neccessary actions one is supposed to take/understand and get back with a comprehensive document which convinces the client to proceed with the DW initiative. What are all the documents we need to provide the client?
CSC,
1 6625Post New Data Warehouse General Questions
What is the function of surrogate key in data warehousing?
What is load manager?
What is the difference between dependent data warehouse and independent data warehouse?
What are different deliverables according to phases?
How many clustered indexes can u create for a table in dwh? In case of truncate and delete command what happens to table, which has unique id.
What needs to be done while starting the database?
Explain what does level of granularity of a fact table signify?
Suppose you are filtering the rows using a filter transformation only the rows meet the condition pass to the target. Tell me where the rows will go that does not meet the condition 333 after we create a scd table, can we use that particular dimension as a dimension table for star schema?
What is the use of dimensional modeling in data warehousing?
What is scd1 , scd2 , scd3?
Is framework manager an un-needed overhead? As we know report studio allows us to create the data model from a query and thereby skipping framework manager. Given that this feature is available, in what scenarios would one want to skip framework manager?
What are the different methods of loading dimension tables?
Explain what is cost benefit analysis (cba)?
What is the difference between olap and oltp?
I need a good brd and uc template?
