NVL vs NVL2 vs COALESCE Functions Explained | ETL Testing Interview Questions
In this video, we will dive deep into the differences between the NVL, NVL2, and COALESCE functions. These functions are commonly used in ETL testing interviews and understanding how they work is crucial for data manipulation. We will discuss the syntax, functionality, and use cases of each function, providing examples along the way to help you grasp the concepts easily. By the end of this video, you will have a clear understanding of when to use NVL, NVL2, or COALESCE in your ETL testing projects.
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