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DWHlabs- ETL TOOL - INFORMATICA
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TRANSFORMATIONS
   
Transformation Active Passive Description  
SORTER
__ sorting the tables in ascending or descending and aslo to obtain Distinct records.  
RANK
__ Top or bottom 'N' analysis .  
JOINER
__ Join two different sources cmng from different and same location .  
FILTER
__ filters the rows that do not meet the condition.  
ROUTER
__ It is useful to test multiple conditions .  
AGGREGATOR
__ To perform group calculation such as count , max , min , sum , avg (mainly to perform calculation or multiple rows or group)  
NORMALIZER
__ Reads cobol files ( denormalized format).
Split a single row into multiple rows.
 
SOURCE QUALIFIER
__ It performs many tasks such as override default sql query , filtering records , join data from two or more table etc
Represents the flatfile or relational data.

 
UNION
__ It merges data from multiple sources similar to the UNION ALL SQL statement to combine the results from two or more SQL statements. Similar to the UNION ALL statement, the Union transformation does not remove duplicate rows.  
EXPRESSION
__ You can use the Expression transformation to calculate values in a single row before you write to the target.  
LOOK UP
__ Use a Lookup transformation in a mapping to look up data in a flat file or a relational table, view, or synonym.  
STORED PROCEDURE
__ stored procedures to automate tasks that are too complicated for standard SQL statements.You can call by using Stored Procedure Transformation.  
XML SOURCE QUALIFIER
__ When you add an XML source definition to a mapping, you need to connect it to an XML Source Qualifier transformation.  
UPDATE STRATEGY
__ To flag rows for insert, delete, update, or reject..  
       
 
   
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