Answered by Laxmi on 2005-05-13 16:42:53: Staging area is place where you hold temporary tables on data warehouse server. Staging tables are connected to work area or fact tables. We basically need staging
Latest Answer : The staging area is:- One or more database schema(s) or file stores used to “stage” data extracted from the source OLTP systems prior to being published to the “warehouse” where it is visible to end users.Data ...
Latest Answer : a three tier DWH means top level, middle level,bottom level. it's right. but i think, it 's combination of respectivetool's cliet,respective tool's server & server manager. ...
Latest Answer : Hi,We can extract SAP data by using informatica with the powerConnect option.We need to install and configure the powerConnect tool . Import the Source in to the Source Analyzer. Here PowerConnect is the gateway between SAP & Informatica.Then develop ...
Techniques of Error Handling - Ignore , Rejecting bad records to a flat file , loading the records and reviewing them (default values)
Latest Answer : ODS is nothing but operational data source. It contains most recent data .it contains around 30-60 days data It is placed in between source system and staging area.. reports can also be taken in ODS . ...
What are the various test procedures used to check whether the data is loaded in the backend, performance of the mapping, and quality of the data loaded in INFORMATICA.
I'am new to SAS, can anybody explain the process of extracting data from source systems,storing in ODS and how data modelling is done.RegRam
Latest Answer : By enablign sorted input property in Aggregator Properties ...
How you capture changes in data if the source system does not have option of storing date/time field in source table from where you need to extract the data?
The DW database can be Oracle or Teradata. The requirement here is to pull data from source system and ETL need to device a mechanism to identify the changes or new records. The source system can be a
Latest Answer : Hi, Yes, We Can Test By Using Debugger before u run the session in Informatica ...