Interested to Buy Any Domain ? << Click Here >> for more details...
what is materialised view? why we use it in data warehousing?
- 5 Answers
- 10473 Views
- HCL, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / c.venkataramana gupta
->Meterialized view is DBA object
-> to create meterializd view need dba perimission(previlege)
->it holds the static data (changes on table will not reflected on view)
-> at time of creating the data is stored in meterialized view, when ever another new record is not restricted.
-> no dml operations allowed
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / suman palisetty
Materialized Views are objects which have information that has been aggregated and summarized from source tables.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / gopal
MT views is a table which occupies space when ever we update it doesn't update in parent table we need to write a command to refersh the data in to parent table
Mainly used for Pre-aggregated Calculations....
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ram
Materialised view will stores the results of sql in the tables form in the database. materialised view contains data physically.view doesn't contain data physically.materialised view will be updated with batch upted know as refreshes.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / manoj
Materialized view contains special cache to store the data
and structure of the table.
it improves the perrformance becuase when we write the
query every time data is not feched from the base table
i.e. we will use in Datawarehouse.
| Is This Answer Correct ? | 0 Yes | 2 No |
How to deploy from one server to another server?
----------How to cretae a Template?
What is the difference between filter & Condition?
-------------How you design DWH?
What is loop in frameworkmanager ?
what is the difference between native sql and cognos sql?
What are cognos connection initial page components?
What is the difference between drill through, drill across?
I have a report with list and cross tab in same page,How do you restrict one user can see only the list and other user can see both?
what is the automation tool used for data warehouse testing???
3 Answers Covansys, IBM, Wipro,
what was the actual purpose of portfolio in cognos ?
What are all the types of gateway used in Cognos?
Teradata 
