#30dayssqlchallenge kết quả tìm kiếm
🚀 Day 28 of my #30DaysSQLChallenge – Analytics SQL: Time Series Analysis Time series analysis isn’t just for data science tools like Python or R — you can do a lot directly in SQL! I’ve practiced different SQL techniques that help uncover trends and insights over time.
Day 23 of my #30DaysSQLChallenge – Transactions & Constraints Today’s topic is too broad to cover in just one sitting. So I’ll be dividing it into two parts for better clarity: Part 1 (Today): Understanding what Transactions and Constraints are.
🚀 Day 22 of my #30DaysSQLChallenge Today, I focused on Joins and Views in SQL. While joins are powerful for combining data across multiple tables, I found views especially interesting: 🔹 A view is like a virtual table that stores a query for easy reuse.
🚀 Day 17 of my #30DaysSQLChallenge 🚀 Today’s focus: Common Table Expressions (CTEs) A CTE is a temporary named result set that exists only within the query that follows it. Working with CTEs today helped me break complex queries into smaller steps instead
Foundations of SQL Day 5: Sorting Results Question: List all employees ordered by HireDate descending. @analystsleague @RxData_ @iam_daniiel #30daysSQLChallenge
Foundations of SQL Day 1: Basic SELECT Statements Question: Retrieve all columns and rows from the Employees table. @analystsleague @RxData_ @iam_daniiel #30daysSQLChallenge
Foundations of SQL Day 4: Using Comparison Operators Question: Retrieve employees with a salary greater than 50,000. @analystsleague @RxData_ @iam_daniiel #30daysSQLChallenge
Foundations of SQL Day 2: Selecting Specific Columns Question: Select the FirstName, LastName, and Salary of all employees. @analystsleague @RxData_ @iam_daniiel #30daysSQLChallenge
Foundations of SQL Day 6: Limiting Results Question: Display the top 5 highest-paid employees. @analystsleague @RxData_ @iam_daniiel #30daysSQLChallenge
Foundations of SQL Day 7: Review and Practice Task: Review the week's concepts by redoing previous queries and experimenting with different departments or salary ranges. @analystsleague @RxData_ @iam_daniiel #30daysSQLChallenge
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