CodeBit360

TCP/IP workflow diagram

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CodeBit360

Follow the steps to use the latest version of Free Claude AI.

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CodeBit360

In python programming, What does len() function do?

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CodeBit360

*✅ SQL Subquery Practice Questions with Answers*

🔎 *Q1. Retrieve employees whose salary is greater than the company’s average salary.*
🗂️ Table: employees(emp_id, name, salary)

✅ Answer:
SELECT emp_id, name, salary FROM employees WHERE salary > ( SELECT AVG(salary) FROM employees );

🔎 *Q2. Identify customers who have placed more than three orders.*
🗂️ Table: orders(order_id, customer_id, order_date)

✅ Answer:
SELECT customer_id FROM orders WHERE customer_id IN ( SELECT customer_id FROM orders GROUP BY customer_id HAVING COUNT(order_id) > 3 );

🔎 *Q3. Display employees working in departments where the average salary exceeds 60,000.*
🗂️ Table: employees(emp_id, name, department_id, salary)

✅ Answer:
SELECT emp_id, name, department_id FROM employees e WHERE department_id IN ( SELECT department_id FROM employees GROUP BY department_id HAVING AVG(salary) > 60000 );

🔎 *Q4. Show products that have never been ordered.*
🗂️ Tables: products(product_id, product_name), orders(order_id, product_id)

✅ Answer:
SELECT product_id, product_name FROM products WHERE product_id NOT IN ( SELECT product_id FROM orders );

🔎 *Q5. Fetch employee(s) receiving the maximum salary in the organization.*
🗂️ Table: employees(emp_id, name, salary)

✅ Answer:
SELECT emp_id, name, salary FROM employees WHERE salary = ( SELECT MAX(salary) FROM employees );

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2 months ago | [YT] | 2

CodeBit360

🔥 Why DSA is Important for Companies?

Builds strong problem-solving skills
Helps write fast & optimized code
Improves performance & scalability
Reduces server cost & production issues
Used in real systems like databases & caching
That’s why DSA is asked in interviews

#DSA #DataStructures #Algorithms #CodingInterview
#SoftwareEngineer #TechCareers #Programming
#ProblemSolving #FAANG #CodingLife
#ComputerScience #Placements #Developer

2 months ago | [YT] | 12

CodeBit360

What will be the output of this code?
x = [1, 2, 3]
print(x * 2)

2 months ago | [YT] | 2

CodeBit360

What does this code print?
x = 5
y = x
y = 10
print(x)

2 months ago | [YT] | 6

CodeBit360

🚀 Best YouTube Channels to Learn Tech & Programming (Free)
Want to learn coding, DevOps, AI, and Web Development for FREE?
Here are some of the best YouTube channels trusted by millions:
✔ DevOps – TechWorld with Nana
✔ Java – Kunal Kushwaha
✔ Blockchain – Telusko
✔ AI / ML – Krish Naik
✔ AR / VR – FusedVR
✔ Chemistry – Khan Academy
✔ UI / UX – GFXMentor
✔ Cybersecurity – The Cyber Mentor
✔ Ruby – The Ruby Way
✔ Scala – Scala Love
✔ JavaScript / Web Dev – Traversy Media
✔ Python – Code With Harry
✔ Kotlin – Kotlin Programming
✔ Flutter – The Net Ninja
✔ C – freeCodeCamp.org
✔ C++ – The Cherno
✔ SQL – Programming with Mosh
🎯 Perfect for beginners, students, and developers.
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2 months ago | [YT] | 8