Whatis the difference between View and Materialized View ?

Answer Posted / surajit n bhowmick

A View is just a stored query and has no physical role.
Once a view is instantiated, performance can be quite good,
until it is aged out of the cache.

A materialized view has a physical table associated with
it, it does not have to resolve the query each time it is
queried. Depending on how large the result and how complex
the query, a materialized view should perform better.

Is This Answer Correct ?    12 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How can we update a record in the target table without using update strategy?

658


What is the advantage of informatica?

650


While importing the relational source definition from the database, what are the metadata of source that will be imported?

795


What is fact table? Explain the different kinds of facts.

616


What is the benefit of session partitioning?

600






can any one explain about dataflow in the informatica project for bank domain....thanks is advance

10281


During the running session, output files are created by informatica server. Enlist few of them.

545


explain one complex mapping with logic? sales project?

6154


Tell me about Propagate functions in informatica

527


Enlist few areas or real-time situations where informatica is required.

597


Describe expression transformation?

636


What is aggregate cache in aggregator transformation?

637


Have you worked with/created Parameter file

1229


How do you load only null records into target?

742


Is stop and abort are same in informatica?

573