How SQL is linked to Data Science?

Question

Can anyone explain why does a data scientist need to learn SQL?

Answer 1

After randomly researching Data scientist job descriptions, SQL is mentioned in 231 job descriptions out of 300. SQL is the third most required skill for a data scientist. SQL can be combined with Python or R programming for making visualizations and to understand the data.

Data Scientists' main task is to analyze the data that can be done by SQL effectively. SQL can be used for preprocessing steps like exploratory data analysis by writing simple queries. SQL can handle large structured datasets and connect with other databases to complete the task efficiently.

You can watch this video for a demo project on how to use SQL for Data Science: