Faxtel Systems Interview Questions and Answers

Join queries in SQL are used to combine rows from two or more tables based on a related column between them.

• Use JOIN keyword to combine rows from two or more tables based on a related column

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Specify the columns to join on using ON clause

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

To find the sum of the first n prime numbers

• Iterate through numbers starting from 2 and check if each number is prime

• Keep track of the sum as you find each prime number

• Stop when you have found n prime numbers

Python is a versatile programming language commonly used for data analysis and visualization. Power BI is a business analytics tool used for creating interactive reports and dashboards.

• Python is a popular programming language known for its simplicity and readability.

• Python has a wide range of libraries for data analysis and visualization, such as Pandas, NumPy, and Matplotlib.

• Power BI is a business analytics tool by Mi...read more