Data Analyst - Explore data, clean data, uncover trends, and develop visuals. Uses tools like Excel, SQL, BI Tools, and a little Python.β£
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Data Science - Processing, cleansing, and verifying the integrity of data. Uses tools like Spark/Hadoop, is expert in SQL, BI tool, and
You definitely don't need to learn all the tools in the universe. If you are well versed with R, Python or SQL that is more than enough for data analysis and machine learning. However, knowing Excel (basic or advanced) is an added advantage, when dataset is small and you have to