Interested to Buy Any Domain ? << Click Here >> for more details...
what is Materialized view? What is a snapshot? what are the
similarities and differences between Materialized views and
snapshots?
- 2 Answers
- 14322 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / mkumar.it
Snapshots and Materialized view are used interchangibly as
both are almost same. However, materialized view is having
additional feature of query rewrite which is not in snapsot.
In this feature, suppose you made any materialized view
using some aggrigate function and you query base table from
sql using same aggrigate funtion, the query will execute on
the materialized view instead of querying base table
provided you have query rewrite priviledge.
| Is This Answer Correct ? | 14 Yes | 2 No |
Answer / its me...
A materialized view is a database object that contains the
results of a query. The FROM clause of the query can name
tables, views, and other materialized views. Collectively
these objects are called master tables .
materialized views allow you to maintain copies of remote
data on your local node.
You can select data from a materialized view as you would
from a table or view.
| Is This Answer Correct ? | 5 Yes | 1 No |
how to clone 9i Database on to 10g Database.
I have query like this. select dept_id, max_mark from stude_dept where min_mark= (select min(mini_mark) from stud_dept); How can i optimize this query. Can anyone help me with it
What is Library Cache in Oracle?
How do I use os authentication with weblogic jdriver for oracle and connection pools?
What is the diff between Oracle and SQL Server
Explain integrity constraints?
Can a parameter be passed to a cursor?
What is analyze command used for?
Give the various exception types.
How to run queries on external tables?
what is RAID technology?which is better RAID 0+1 OR RAID 5?
What is a subquery?
Oracle General 
