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πŸš€ Master SQL for Interviews! πŸ“Š

πŸ’‘ SQL Challenge: Ready to test your skills? Here’s a commonly asked SQL Interview Question that you must know to ace your next job interview! πŸ‘‡

πŸ”₯ Question:
Write a SQL query to calculate the cumulative sum of sales for each employee. The result should include:
πŸ‘‰ EmployeeID
πŸ‘‰ SaleDate
πŸ‘‰ CumulativeSales



--SQL Code to Create the Table:

CREATE TABLE Sales (
EmployeeID INT,
SaleDate DATE,
SaleAmount DECIMAL(10, 2)
);


--Insert Sample Data into the Table

INSERT INTO Sales (EmployeeID, SaleDate, SaleAmount) VALUES
(1, '2024-01-01', 100.00), -- Employee 1 made a sale of 100 on Jan 1
(1, '2024-01-02', 150.00), -- Employee 1 made another sale on Jan 2
(1, '2024-01-03', 200.00), -- Employee 1 made another sale on Jan 3
(2, '2024-01-01', 120.00), -- Employee 2 made a sale on Jan 1
(2, '2024-01-02', 180.00), -- Employee 2 made another sale on Jan 2
(3, '2024-01-01', 200.00), -- Employee 3 made a sale on Jan 1
(3, '2024-01-03', 100.00), -- Employee 3 made a sale on Jan 3
(3, '2024-01-04', 50.00); -- Employee 3 made another sale on Jan 4

✨ Here’s the SQL Query Solution:
WITH CumulativeSales AS (
SELECT
EmployeeID,
SaleDate,
SaleAmount,
(SELECT SUM(SaleAmount)
FROM Sales AS S2
WHERE S2.EmployeeID = S1.EmployeeID
AND S2.SaleDate <= S1.SaleDate) AS CumulativeSales
FROM Sales S1
)
SELECT
EmployeeID,
SaleDate,
SaleAmount,
CumulativeSales
FROM CumulativeSales
ORDER BY EmployeeID, SaleDate;

πŸ“Œ For a detailed explanation and additional learning, watch my YouTube video: πŸŽ₯
https://youtu.be/baWTD9S0dpY

πŸ‘‰ Follow for More Insights: @coder_baba
πŸ“Œ Don't forget to share this post with others preparing for technical interviews!

#SQLInterviewQuestions #DatabaseSkills #SQLServer #LearnSQL #InterviewPreparation #CumulativeSum #CodingTips #coderbaba
πŸ‘1
πŸš€ New Video Alert! πŸŽ₯

Hey, coders! My latest video is out now: "Quick Tip: Hiding Links in ASP.NET with JavaScript".

Learn how to effortlessly hide links in your ASP.NET projects using a simple JavaScript trick. Perfect for making your web apps more dynamic and user-friendly!

πŸ‘‰ Watch now: https://youtu.be/XVLdjwumRZA

πŸ’‘ Don’t forget to like, comment, and share if you find it helpful! Let me know your thoughts or any coding challenges you’d like me to tackle next.

#ASPdotNet #JavaScript #WebDevelopment #CodingTips #LearnToCode\
πŸ‘1
🌐 18 Most Common HTTP Status Codes with Meaning & Use Cases πŸš€
πŸ’» Let’s decode the most common HTTP status codes and their purposes!

βœ… Success Codes:

200 - OK 🟒: Request succeeded.
201 - Created πŸ†•: Resource created successfully.
202 - Accepted βœ…: Request accepted for processing.
204 - No Content 🚫: Request succeeded, no content to return.

πŸ”„ Redirection Codes:

301 - Moved Permanently 🚚: Resource permanently moved to a new URL.
302 - Found πŸ”„: Resource temporarily available at a new location.
304 - Not Modified πŸ“„: Cached version of the resource is still valid.
307 - Temporary Redirect ↩️: Temporary redirect; same request method applies.

❌ Client Error Codes:

400 - Bad Request 🚫: Invalid request syntax or parameters.
401 - Unauthorized πŸ”: Authentication required.
403 - Forbidden 🚷: Access denied to the requested resource.
404 - Not Found ❓: Resource could not be located.
405 - Method Not Allowed πŸ“›: HTTP method not supported by the resource.
409 - Conflict βš”οΈ: Request conflicts with the current state of the server.

⚠️ Server Error Codes:

500 - Internal Server Error πŸ’₯: Server encountered an error.
502 - Bad Gateway πŸ›‘: Invalid response from an upstream server.
503 - Service Unavailable 🚧: Server temporarily unavailable.
504 - Gateway Timeout ⏳: Server didn't receive a timely response from upstream.

πŸš€ Master these status codes to ace your web development journey!
πŸ“Œ Save this post for quick reference. πŸ’‘
#coderbaba
#HTTPStatusCodes #WebDevelopment #CodingTips
Follow @coder_baba
πŸ‘1
How to Build a Reusable Database Binding Method for ASP.NET Repeater
In this YouTube Shorts video, learn how to create a reusable method for binding data from a database to an ASP.NET Repeater control. This quick tutorial will help you streamline your code and improve efficiency by using a generic approach for dynamic data binding. Perfect for ASP.NET developers looking to simplify and optimize their projects!

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