The phone interview with the recruiter went well. The interviewer was kind, helpful, and created a comfortable atmosphere.

The interview involved coding in Python and SQL, with significant pressure to complete the questions within the time limit.

A helpful tip is to keep practicing regularly, as timing is crucial in these assessments.

SQL Tasks:

1. Identify authors who have published at least 5 books.
2. Calculate the percentage of total sales completed on the same day the customer registered: (Same day sales * 100.0) / Total sales.
3. Find customers who purchased 3 or more books on both the first and last day of sales, excluding those with only one transaction.

Python Tasks:

1. Calculate the average book price from a list of prices.
2. Determine the maximum number of unique books that can be bought, given an array of book prices and a budget (each book can be purchased only once).
3. From a given list of book titles, identify sequels (e.g., for an input like ['GOT', 'Troy', 'Batman', 'Batman Returns'], the output should be ['Batman Returns']).