What is the main difference in the logic when you create a mapping for a dimension table with that of a fact table in Informatica.

Amar

• Nov 30th, 2012

The main logical difference is that we use connected lookup while loading dimensions and unconnected look up while loading facts

ASHU

• Jan 21st, 2012

A Dimension table contain descriptive (detailed) data and a fact table contain measurements (facts) which are used to evaluate a business, all numeric are not a facts but the numeric which are key performance indicators is known as facts.. fact table contain summarized data....

ASHU (KARIMNAGAR)

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In which situation do we use update strategy?

Anil

• Jun 22nd, 2016

If we want to perform 2 DML operations but same operations it is not better to use update tr. use property in session (treat source rows as) instead of creating update tr. If we want to perform 2 DML...

ankit

• May 4th, 2016

Can any one tell me in which scenario it is not advisable to use update strategy?

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Router is passive transformation, but one may argue that it is passive because in case if we use default group (only) then there is no change in number of rows. What explanation will you give?

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sasi.a.kumar  

 Profile Answers by sasi.a.kumar Questions by sasi.a.kumar

• Member Since Aug-2009 | Aug 14th, 2009

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Router is an Active Transformation, Most of the time we use router only when we are going to apply multiple conditions on a records, It is absolutely possible for a record to satisfy one or more conditions thus making the router Active, Router is the only active transformation where the number of?output records from the transformation is greater or equal to the number of input records given to the transformation.

bosna

• Aug 17th, 2011

AS PER INFORMATICA DOCUMENTATION, Router transformation is ACTIVE and CONNECTED.. Please Don't thumb down if you're not sure..

RANJAN RASMI DAS

 Profile Answers by RANJAN RASMI DAS Questions by RANJAN RASMI DAS

• Jan 12th, 2011

Router can act both active and passive, one example....Suppose in source we have recordsid.....name -----------10.....aa10.....bb20.....cc20.....dd30.....xx40.....yy We have one target table...

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What is the difference between $ & $$ in mapping or parameter file? In which cases they are generally used?

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anshu.gangwar  

 Profile Answers by anshu.gangwar Questions by anshu.gangwar

• Member Since Sep-2008 | Sep 30th, 2008

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$ prefixes are used to denote  session Parameter and variables and $$ prefixes are used to denote mapping parameters and variables

SEHAJ

• Aug 18th, 2011

$-This is d symbol for server o inbuilt variable.

$$-this is the symbol for the variables o parameters which v create

sweetmann27

 Profile Answers by sweetmann27 Questions by sweetmann27

• Aug 10th, 2011

Hi,

$ is session parameter e.g $DBConnection
$$ is mapping parameter/variable e.g $$LASTRunDate

Thanks

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Suppose I have one source which is linked into 3 targets.When the workflow runs for the first time only the first target should be populated and the rest two(second and last) should not be populated.When the workflow runs for the second time only the second target should be populated and the rest two(first and last) should not be populated.When the workflow runs for the third time only the third target...

sum

• Oct 8th, 2015

Define one variable $$CNT in mapping and assign its initial value as 1 in parameter file Take an expression and do below coding count =$$CNT INC_COUNT=$$CNT+1 O_INC_CNT=SETVARIABLE($$CNT,INC_COUNT) Ad...

Rakesh

• Feb 9th, 2015

your above logic is perfect..but instead resting the variable at workflow level you can add these condition in first router group => MOD(o_Flag,3) = 1 2nd router group =>MOD(o_Flag,3) = 2 3rd router g...

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how to join the data of two tables which do not have common columni mean how to perform non equi join in informaticaEg:just like getting data from emp and salgrade table of oracle where sal is between losal and hisalthanksvenu

milind

• Aug 6th, 2015

Yes dummy column will work
other way is to use mapping variable :)

ashish

• Sep 27th, 2014

You can create a dummy port in each source and assign 1 to both port and drag the both sources in joiner tr and give join condition on dummy port, After that you can use filter condition on your location

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set of level properties that describe a specific aspect of a business, used for analyzing the factual measures of one or more cubes, which use that dimension. Egs. Geography, time, customer and product.

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ManishTewatia  

 Profile Answers by ManishTewatia Questions by ManishTewatia

• Member Since Jul-2010 | Jul 22nd, 2010

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What Md.Rehman is trying to say is catagorizing the SCD which are the Slowly Changing Dimensions which are used to maintain historical data.

Dimension:A dimension is an organized hierarchy of categories, known as levels, that describes data in data warehouse fact tables

The various types of dimensions are :

1) Shared and Private Dimensions: Describes the basic differences between shared and private dimensions and their uses

2) Regular Dimensions: Provides information about regular dimensions and their variations

3) Parent-Child Dimensions: Describes the creation of parent-child dimensions and identifies their advantages and restrictions

4) Data Mining Dimensions: Describes the creation of data mining dimensions and identifies advantages and restrictions to their use

5) Virtual Dimensions:Describes the creation of virtual dimensions and their advantages and restrictions

6) Dependent Dimensions: Describes the creation of dependent dimensions and identifies their advantages and restrictions

7) Write-Enabled Dimensions: Describes the creation of write-enabled dimensions and identifies their advantages and restrictions

VIKRAM KUMAR

• Mar 1st, 2018

Dimensions are of several types but we use few commonly which are, 1. Confirmed dim. dim. shared by all fact tables. ex- time dim. 2. Slow changing dim. it is of 3 types : SCD1. SCD2, SCD3., 3. Role ...

Venu Gaddam

 Profile Answers by Venu Gaddam Questions by Venu Gaddam

• Dec 23rd, 2010

Dimensions are of 3 types mainly in case of slowly changing dimensions: Type 1 -> Does not maintain any history and is update only. --> this is normal practice mappings.Type 2-> Maintains full histor...

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I am unable to start my Informatica Repository Service, Even if I start the service, it stops immediately.Please, any one have a solution to this problem(I installed Informatica 7.1 on WINDOWS XP Home Edition, Oracle 10g)Thanks a lot.nagesh

k.praveenkumar

• Dec 6th, 2011

Software could be corrupted or has attacked with Virus,
Re-install and if the problem persist then you change the OS and try Informatica, it may work.

Srikanta

• Nov 11th, 2011

In order to up your IRS, please follow up the guidelines:- 1) Create a database, if u have already DB exist, then u can go with the same. 2) Create two db users, give admin privilege to those users....

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