ETL is a short form for the three database functions extract, transform, load that is combined into one tool to extract the data from a database and load it into another database. Extract is the process of reading data from internal and external databases. Transform is the process of converting the extracted data into the form required form. Load is the process of loads information into the target database.
If you want to learn Informatica, check out this Informatica Course by Intellipaat
Also, watch this video on Informatica ETL tool:
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