Data Extraction Techniques
When we think about Data Engineering, ETL is the powerhouse and a core building block of most Data Warehouses. And while it is becoming a popular subject among all and is as simple as it sounds, an inside look in its processes is often something that most don’t mention about. If we peek at the first step of ETL, i.e. the Extraction of Data, it is a very important and crucial process. Until and unless you have the correct and structured data, you can neither