Perfect Fusion Interview Questions and Answers

Github comments are feedback left by users on code repositories, providing insights, suggestions, and discussions.

• Comments can be used to explain code functionality, suggest improvements, report bugs, or ask questions.

• Users can engage in discussions within the comments section, providing feedback and collaborating on code development.

• Comments can also serve as documentation for future reference, helping developers understand the codebase.

Python has four parameter passing mechanisms: positional, keyword, default, and variable-length.

• Positional parameters are passed by position.

• Keyword parameters are passed by name.

• Default parameters have a default value if not specified.

• Variable-length parameters can take a variable number of arguments.

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

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

• Syntax: SELECT columns FROM table1 JOIN table2 ON table1.column = table2.column

• Example: SELECT * FROM employees JOIN departments ON employees.department_id = departments.department_id

To join two databases, you can use database links or data replication techniques.

• Use database links to establish a connection between the two databases.

• Use data replication techniques like ETL (Extract, Transform, Load) to synchronize data between the two databases.

• Consider using a middleware tool to facilitate data integration between the databases.

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

• Normalization involves breaking down data into smaller, more manageable parts.

• It helps in reducing data redundancy by storing data in a structured way.

• Normalization ensures data integrity by avoiding anomalies like insertion, update, and deletion anomalies.

• There are different normal forms like 1NF, 2NF, 3NF, BCNF, etc.

• For example, in a database table, instead of stori...read more

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

• Normalize data by breaking down tables into smaller, related tables

• Eliminate redundant data by storing it in separate tables

• Use primary and foreign keys to establish relationships between tables

Python is a versatile language with a simple syntax that offers numerous benefits for software development.

• Easy to learn and read

• Large standard library

• Cross-platform compatibility

• Supports multiple programming paradigms

• Great for data analysis and scientific computing

• Used in web development, machine learning, and automation

• Highly customizable and extensible

• Strong community support

Functions in Python are blocks of reusable code that perform a specific task.

• Functions are defined using the 'def' keyword followed by the function name and parameters.

• Functions can return a value using the 'return' keyword.

• Functions can be called multiple times with different arguments.

• Functions can be passed as arguments to other functions.

• Functions can have default parameter values.

• Lambda functions are anonymous functions that can be defined in a single line.

• Example: def a...read more