Want  write efficient SQL queries that are optimized for performance? This tutorial will help you with just that.

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Strong SQL skills are crucial in data roles, where optimizing query performance can significantly impact application efficiency. Key tips include avoiding SELECT * by specifying columns, using GROUP BY instead of SELECT DISTINCT, limiting query results, and employing indexes with caution. Balancing these techniques can improve query performance and ensure efficient database operations.

5 Tips for Improving SQL Query Performance

Before You Start: Get a Sample Database Table

1. Don’t Use SELECT *; Select Specific Columns Instead

2. Avoid Using SELECT DISTINCT; Use GROUP BY Instead