Comment posted by: Deb on 2005-06-08 00:56:53Ans: While running a Workflow,the PowerCenter Server uses the Load Manager process and the Data Transformation Manager Process (DTM) to run the workflow and
Latest Answer : I am providing the answer which I have taken it from Informatica 7.1.1 manual, Ans: While running a Workflow,the PowerCenter Server uses the Load Manager process and the Data Transformation Manager Process (DTM) to run the workflow and carry ...
After the load manager performs validations for the session, it creates the DTM process. The DTM process is the second process associated with the session run. The primary purpose of the DTM process is
Latest Answer : Load manager and DTM are the components of Informatica server. Load manager manages the load on the server by maintaining a queue of sessions and release the session based on first come and first serve. When the session is released from the load ...
Session - A Session Is A set of instructions that tells the Informatica Server How And When To Move Data From Sources To Targets. After creating the session, we can use either the server manager or the
Latest Answer : Session is a set of instructions that relates to extraction, transformation and loading. Session is a task that relates to data acquisition.
There are two types of taskReusable taskNon reusable taskBatch :Batch is a group of sessions, There are three ...
U can not create or import flat file defintion in to warehouse designer directly.Instead U must analyze the file in source analyzer,then drag it into the warehouse designer.When U drag the flat file source
Latest Answer : While creating flatfiles manually, we drag and drop the structure from SQ if the structure we need is the same as of source, for this we need to check-in the source and then drag and drop it into the Flatfile, if not all the columns in the source will ...
COBOL source definition Joiner transformations Normalizer transformations Non reusable sequence generator transformations. Pre or post session stored procedures Target defintions Power mart 3.5 style Look
Latest Answer : normaliser, xml source qualifier and cobol sources cannot be used ...
Maping parameter represents a constant value that U can define before running a session.A mapping parameter retains the same value throughout the entire session. When u use the maping parameter ,U declare
Latest Answer : Mapping parameter represents a constant value defined before mapping run.
Mapping reusability can be achieved by using mapping parameters.
Mapping variable represents a value that can be changed during the mapping run.
Mapping variable can be used ...
NO. We can use mapping parameters or variables in any transformation of the same maping or mapplet in which U have created maping parameters or variables.
Latest Answer : The scope of a mapping variable is the mapping in which it is defined. A variable Var1 defined in mapping Map1 can only be used in Map1. You cannot use it in another mapping say Map2. ...
Can u use the maping parameters or variables created in one maping into any other reusable transformation?
Yes.Because reusable tranformation is not contained with any maplet or maping.
Use sorted input.
Latest Answer : By using Incrimental aggrigation also we can improve performence.Becaue it passes the new data to the mapping and uses historical data to perform aggrigation ...
The aggregator stores data in the aggregate cache until it completes aggregate calculations.When u run a session that uses an aggregator transformation,the informatica server creates index and data caches
Latest Answer : when server runs the session with aggregate transformation ,it stores data in memory until it completes the aggregation when u partition a source ,the server creates one memory cache and one disk cache for each partition .it routes the data from one ...
