The correct answer: all of the above
ETL is an acronym for 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 an ETL tool, check out this Informatica Certification program by Intellipaat
Also, watch this video on Informatica ETL tool: