Answer Posted / bharat kalra
De-normalization is a concept used for fast data retrieval
as it reduces the number of joins to be performed in the
select query.
It's reverse of normalisation as any normalised data base
is optimized for DML operations(insert,update,delete).
| Is This Answer Correct ? | 9 Yes | 4 No |
Post New Answer View All Answers
What is an er diagram?
Where the data cube technology is used?
Explain clustering algorithm?
How many project sources we can create in metadata?
Is there any difference in testing database and data ware housing?
Can we take backup when the database is opened?
What is the difference between datawarehouse and bi?
How to pivot row data using informatica?
Can you pass sql queries in filter transformation?
Explain why fact table is in normal form?
What is the difference between mapping parameter & mapping variable in data warehousing?
Explain ddl (data definition language)?
Explain how to get the first 100 rows from the flat file into the target?
How can you import tables from a database?
in general which algorithms for used?
