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Programming for Data Science with Python Nanodegree ...

Programming for Data Science with Python Nanodegree ...

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LESSON TWO SQL Joins • Write JOINs in SQL, as you are now able to combine data from multiple sources to answer more complex business questions • Understand different types of JOINs and when to use each type LESSON THREE SQL Aggregations • Write common aggregations in SQL including COUNT, SUM, MIN, and MAX

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