Data Wrangling with SQL

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SQL Window Functions

SQL window functions aid in data wrangling by providing a way to perform complex calculations and manipulations on a set of rows related to the current row in the result set without the need for self-joins or multiple subqueries. This makes the process of data wrangling more efficient, as well as easier to understand and maintain. Window functions are comparable to the types of calculation that can be done with an aggregate function. However, we need to keep in mind that window functions can be challenging at times due to their complex syntax, so we need a deep understanding of their underlying concepts to use them properly. They require careful consideration of the window frame and the partitioning clauses, as well as ...