Answer / sindhu

View - store the SQL statement in the database and let you
use it as a table. Every time you access the view, the SQL
statement executes.
Materialized view - stores the results of the SQL in table
form in the database. SQL statement only executes once and
after that every time you run the query, the stored result
set is used. Pros include quick query results

Answer / anju

materialized view can be used to precalculate the expensive
joins and aggregates prior to execution and the result is
stored in a table in database and can refer to it in
future. the adv of this is increse in performance.
view is nothing but an sql query stored. it will not store
data in tables

Answer / atiric sofrware(raja)

Views contains query whenever execute views it has read from
base table
Where as Materialised views loading or replicated takes
place only once which gives you better query performance

Refresh materialised views
1.on commit
2. on demand
(Complete, never, fast, force)

Answer / praveen kumar pendekanti

In view if we do any operation that may be changes in table
and viveversa.View dont have memery allocation.if we create
a view as 'v1' on emp table and then we delete the emp
table there by 'v1' name will be exist in view list, but
data will not be there, if we create the emp table once
again it will automatically link to that 'v1'view.

But in the case of M.views the changes that made in table
cannot be seen in M.view.M.views have separate memery
allocation if we delete the table the M.view will be there.
M.view is read only view,D.D.L oerations are not possible
on this M.view. M.view are used in dataware housing.

Hi gurus can any one tell me with a flow how to implement SCD Type 1 and SCD Type 2 in a single mapping.For some fields SCD type has to be implemented and for some fields scd type has to be implementd..Thank in advance....

1 Answers  

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What is the Difference between DSS & OLTP?

5 Answers  

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My source is this year 01/jun/2014 04/may/2015 09/mar/2017 my desired output is day month ye 01 jun 2014 04 may 2015 09 mar 2017 how do i acheive this

2 Answers  

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Dependecy Errors in Informatica ? Do u got any dependency problems while running session? Can any one Explain Clearly.

2 Answers   CTS,

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which one is better either active or passive transformation in informatica

1 Answers  

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how will u load the data to diminision tables and fact tables,what is the hiraraichy why we are using hirarichy

2 Answers   TCS,

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Do you have to change the reject file b4 using reject loader utility.

1 Answers  

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Can we combine a flatfile and a database table using an UNION transformation?

2 Answers   Accenture,

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How to create or implement slowly changing dimension (SCD) Type 2 Effective Date mapping in informatica/Flagging mapping in informatica/visioning mapping in informatica?

0 Answers   Informatica,

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If i have one source having 10 ports.In a mapping i use that source one target having that ten ports.Data from 5 ports are going to target through a mapplet and another 5 ports are going to target through another mapplet.Both 2 mapplets are intially passive in nature.But presently my requirment to convert on mapplet to ACtive.How can i do it.

3 Answers   TCS,

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MY SOURCE IS LIKE THIS VENKATESH,101||RAJESH,102||SIVA,103||SWATHI,104 MY REQUIRMENT IS NAME ID VENKATESH 101 RAJESH 102 SIVA 103 SWATHI 104 PLEASE PROVIDE ME THE SOLUTION

4 Answers  

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why we use materialized view over view?

1 Answers   Zensar,

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