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Mappings and Production Server?
How to move the mappings to the production server?
sekhar7791
- Jan 18th, 2008
HiFrist export the mapping, it will create a xml file and connect to production repository there import that xml file.Sekhar7791
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How many types of facts and what are they?
senthilkar
- Jan 22nd, 2008
1. Regular Fact - With numeric values2.Factless Fact - Without numeric values
shiva
- Oct 30th, 2006
haithere r three types of factsAdditive Fact-Fact which is used across all dimensionssemi Additive Fact- Fact which is used some dimesion and not with some Non Additive Fact- Fact which is not used any of the dimesion
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What types of Errors occur when you run a session, can you describe them with real time example
kasisarath
- Jan 25th, 2008
There are several errors you will get. Couple of them are1. if informatica failed to connect data base2. If source file not eixsts in location3. If paramerters not initilized with parameter file4. incompataible piped data types etc.
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Which transformation useful for joining the multi table..........
I am retrieving the multi structures from source i want to define single target table structure for this which transformation i need to follow
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What is Incremental Aggregation?
chandrarekha
- Feb 5th, 2008
When u enable the incremental aggregation ,it passes all the source rows to the mapping and uses the historical cache to perform the aggregate calculations
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What happens if cache name is not entered in the lookup ?
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Assignment task in informatica
What is Assignment task in informatica? In what situation this task will be executed? Where this task exits?
mdahiya81
- Feb 6th, 2008
The Assignment task allows you to assign a value to a user-defined workflow variable. To use an Assignment task in the workflow, first create and add the Assignment task to the workflow. Then config...
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Informatica sessions
What is the difference between a session and a task?
dl_mstr
- Feb 8th, 2008
Seesions : Set of instructions to run a mappingTask: session is type of task. other than that informatica several type of task like Assignment,Command,Control,Decision,Email,Event-Raise,Event-Wait,Timer,session
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Write a query to retrieve the latest records from the table sorted by version(scd).
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What is Dataware house key?
dl_mstr
- Feb 10th, 2008
Surrogate key is know as datawarehouse key. Surrogate key is used as a unique key in warehouse where dupicate keys may exits due to type 2 changes.
shanthi1
- Mar 18th, 2007
There is a Dataware house key........plz go thru kimball bookEvery data warehouse key should be a surrogate key because the data warehouse DBA must have the flexibility to respond to changing descriptions and abnormal conditions in the raw data.
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What is session recovery?
dl_mstr
- Feb 10th, 2008
If the recover option is not set and 10,000 records are committed then delete the record from the target table using audit fields like update_date.
vizaik
- Mar 25th, 2007
when ever session fails, then we have to follow these steps:if no commit is performed by the informatica server, then run session again.if at least one commit is performed by the session, recover...
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1)What are the various test procedures used to check whether the data is loaded in the back end, performance of the mapping, and quality of the data loaded in INFORMATICA.2) What are the common problems developers face while ETL development
dl_mstr
- Feb 10th, 2008
To check data loaded in the backend can be done by collecting the session results from the reposistory tablesquality of dataloaded can be done by writing sql qureries on the target table.To Check perf...
tomtwj
- Mar 14th, 2007
Performance, Data quality, consistensy and exception handling, large various source types.
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In my source table 1000 rec's are there. I want to load 501 rec to 1000 rec into my Target table ?
dl_mstr
- Feb 10th, 2008
SELECT *FROM (select * from source_table ORDER BY rownum DESC) SourceWHERE rownum <= 501
sreedhark26
- Mar 12th, 2007
u can load 500 records, then we can use Transaction control transformation, give the condition for 500 records out of 1000.
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What is constraint based error? how ll u clarify it?
dl_mstr
- Feb 10th, 2008
when data from a single source needs to be loaded into multiple targets And multiple target has primary foreign key relation constraint based loading is used For example : In the first ...
Phani
- Feb 16th, 2007
Hi,when data from a single source needs to be loaded into multiple targets, in that situation we use constraint based load ordering.Note: The target tables must have primary - foreign key relationships.regards,Phani...
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ETL Design Complex Logic
What is the most complex logic you have used in your ETL design?
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Why you cannot use dynamic cache in flat file ?
manojkumarkurnool
- Feb 13th, 2008
flatfile is only a permanent store age device means it flow only read processbut dynamic cache is used for read and wirte process so in a flat file u cannot use a dynamic cache in flatfiles
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How to link informatica with database (oracle or sql server)
Hello,could anyone please guide me ,how to link with database(oracle database or sql server),iam new to informatica, please tell me the path to link these 2 because iam practising in my homewith my computer.please anyone help me.rkumar_123thanks in advance
manojkumarkurnool
- Feb 13th, 2008
hi to all infomatica people in order to link infomatica with database an infomatica developer or etlconsutant has to use ODBC Connections (open database connectivity driver)which are their in infomati...
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How do you use Normalizer to convert columns into rows ?
Deepak Rajkumar
- Feb 18th, 2008
Using Normalizer, in the normalizer properties we can add coloumns and for a coloumn we can specify the occurance levels, which converts rows into coloumns.
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What happens when the session stops half way while loading? How to join a flat file without matching keys in RDBMS?
Sreeya
- Feb 21st, 2008
For the 1st part, we can adopt the recovery options as given in the session property, using the recovery strategy.But using this in real time scenario has proved to take a toll on the performance.Anot...
Deepak Rajkumar
- Feb 18th, 2008
Not sure about session stops without loading. We can join flat files without matching coloumns by:1: use a Seq. Gen. and generate Pks and join using Joiner.
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Informatica PowerCenter repository server configuration error - "the server could not contact" message
Hi, This is Ram working as a system administrator I had installed the Informatica PowerCenter 7.1.1 and when i was configuring the repository server it is giving "the server could not contact" message, I never faced this problem before pls anybody had any solution pls send to me as early as possible i tried all the possible ways to solve this problem but i could not get it so pls help me in this regard.
pal.amol
- Feb 25th, 2008
Hi Ram,You could first go to repository manager give relational connection and then you could configure server add new and give details.Give port name as defined in the configue repository serve...
akmohanty
- Feb 8th, 2007
At the time of configuring the repository server just give the port number is 5001 and put a passwordThen start the service first then open the repository server administrator console.Just connect it ...
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