Dynamic Programming is an algorithmic paradigm that solves a given complex problem by breaking it into subproblems and stores the results of subproblems to avoid computing the same results again.
Gather data from a variety of sources and in a variety of formats, assess its quality and tidiness, then clean it. Inplementations with pandas.
Write a SQL query to get the second highest salary
Write a SQL query to delete all duplicate email entries.
List out all classes which have more than or equal to 5 students.
Write a SQL query to find all dates’ Ids with higher temperature compared to its previous (yesterday’s) dates.
Write a SQL query to find all customers who never order anything.
Write a SQL query that finds out employees who earn more than their managers. For the above table, Joe is the only employee who earns more than his manager.