SQL Admin
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Joined: Aug 22, 2020
Last seen: Mar 18, 2026
Last seen: Mar 18, 2026
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RE: Top 10 SQL Anti-Patterns That Kill Database Performance [With Fixes]
6. Using Subqueries Instead of JOINs (When JOINs Are Faster) ❌ Problem: SELECT name FROM customers WHERE id IN (SELECT customer_id FROM ord...
1 year ago
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RE: How to Optimize a Slow SQL Query? [Step-by-Step Guide with Real Examples]
📦 Bonus: Schema Design Tips A bad schema = slow queries. ✔ Normalize your tables (avoid redundancy)✔ Use appropriate data typ...
1 year ago
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RE: Select the 3rd Highest Salary in SQL Using LIMIT
1️⃣ How to Find Nth Highest Salary in SQL? | Multiple Ways Explained Description: When working with SQL, interviewers often ask about ...
2 years ago
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2 years ago
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RE: Power BI Best Practices for Efficient Data Visualization and Performance
Power BI Best Practices for Efficient Data Visualization and Performance 1. Remove Unnecessary Columns Keep only essential columns like Date, Region...
2 years ago
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2 years ago
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