Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “Data is then inserted into the tables using the INSERT INTO statement.”

A block of code is set as follows:

# Filter employees with salary greater than $50,00
filtered_employees_df = employees_df.filter(employees_df.salary > 50000)

Tips or important notes

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