what is materialised view? why we use it in data warehousing?

Answer Posted / 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



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Hi all... how can we publish packages using bmp scripts to Path:Public Folder Packages Folder

2310


what are the names of the reports that you prepared?

624


How create measures and dimensions?

605


how to merge 2 crosstabs thans

2157


what are the errors faced while bursting the reports and how to solve those errors?

1565






Can you define drill down and drill up?

638


Can we test the report other than manual testing?

1662


Explain what is the difference between native sql and cognos sql?

525


whats the difference between previous version of cognos and cognos 8 BI?

4754


hi, i am searching job in cognos and datastage, does any can provide me the real time experieced scenerios and questions related to cognos and datastage projects, so if anyone provide me the documents related this can very helpful to me, my mail id is tchiru01@yahoo.com

1779


What is Metrics designer?

594


What is the diff between cognos 8.1 & cognos 8.2 & cognos 8.3? Measn whet are the enhancements are added in new versions(8.2& 8.3)?

3919


my report ended at the half of the last page but i don't want that matter in the last page I would like to adjust the matter in the previous page .how can i do this?

1660


i have one file i saved in csv how can i take these file into framework manager

1537


What are all types of Batches?

581