Why ETL is used?

 The conventional application for Informatica is:  

• The company uses it to transfer from the current legacy system such as the mainframe to the latest system of database. Consequently, the transfer of its existent data into the system could be carried out.  
• Companies establishing their warehouses of data will need a tool of ETL to transfer the data to the warehouse from the Production system.  
• The assimilation of information from several different systems such as numerous databases and systems based on files could be completed utilizing Informatica.  
• It could be utilized as a tool for cleansing data. 

It is beneficial more than it provides a broad collection of product versions. Hence, consumers could choose a particular edition based on requisite. Informatica is consistently emphasized as a product of the integration of data product leader in the listing of Gartner Magic Quadrant.  

Examples of Informatica  

Their different applications in the area of Data Integration in the case of the Informatica tool and below are the examples:

Example: The different steps in the process of ETL Informatica are as below in every case: 

1. Create a Source Definition.  
2. Create a Target Definition.  
3. Design transformation rules.  
4. Create all the mappings.  
5. Create a session for each mapping.  
6. Create a data connection.  
7. Create workflow.  
8. Start the process of a workflow.  

The above process will always follow in the case of almost every ETL process which is a kind of generalized theme.