While working with data from multiple months or departments, we often receive multiple files stored in a folder — each having the same structure but different data. Manually combining these every time can be time-consuming and error-prone. That’s where Power BI’s “Combine Files” options come...

The Foundation of a Robust Database Welcome, fellow database enthusiasts! In the world of SQL, building a solid database isn't just about storing data; it's about storing it correctly. Today, we're diving deep into two fundamental concepts that form the bedrock of any well-structured database:...

Project Overview The objective of this Power BI report is to analyze Udemy's online course offerings. Key insights will focus on the popularity of courses, pricing patterns, review trends, content duration, and subject categories. This report aims to help stakeholders identify popular courses, understand pricing...

Navigating the Data Science Job Market: Tips for Career Advancement The data science field has experienced explosive growth over the past decade, and as businesses continue to rely on data-driven insights, the demand for skilled professionals remains high. However, with this increasing demand comes growing...

Intermediate Level What is a hyperlink, and how do you add a hyperlink? A hyperlink in Excel is a link that directs you to another location, such as a web page, a different worksheet, or a specific cell within the same worksheet. Example: To add...

Intermediate Level What is the difference between a range and a named range? A range in Excel refers to a selection of two or more cells. For example, “A1:A10” refers to a range of cells from A1 to A10. Ranges are often used in formulas,...

Intermediate Level How to merge two DataFrames on a common column? df1 = pd.DataFrame({"A":[1,2,3], "B":[11,12,13]}) df2 = pd.DataFrame({"A":[1,2,4], "B":[21,22,23]}) new_df = pd.merge(df1, df2, how='inner', on='A') new_df A B_x B_y 0 1 11 21 1 2 12 22 How to apply a function to each element...

Intermediate Level Print First 10 natural numbers using while loop cnt = 0 while (cnt := cnt + 1)

Intermediate Level Display numbers divisible by 5 from a list lst_ = list(np.random.randint(10,99,100)) def isDivByFive(num): return (num%5==0) for n in lst_: if isDivByFive(n): print(n, end=",") Create the dictionary with number and its square which is leas then or equal to given number. ur_input = int(input("Enter...