Complete PostgreSQL Course for Beginners - One SQL CAST Function That Destroys Your SQL Performance Tuning | #sqlperformance

This SQL tutorial covers a real-world SQL performance tuning issue that most developers miss. You created an index, your query looks correct, but SQL still performs a full table scan. Why? The reason is implicit type conversion. When SQL applies a CAST on an indexed column, the SQL index is no longer used, leading to poor performance. In this video, you’ll learn: Why SQL index is not used even after creating it How implicit conversion impacts SQL performance tuning How to fix full table scan issues in SQL If you are preparing for interviews or working on real projects, this concept is critical. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: Previous Tutorial ► ============================= ►►►Camera Gears https://www.amazon.in/shop/manishsharma?listId=DU9UM0XL97KM&ref=idea_share_inf ►►► Work From Home Essential Tech That We Use Daily https://www.amazon.in/shop/manishsharma?listId=XAZ18JLLSNB5&ref=idea_share_inf ============================= ============================= Subscribe now for more database tutorials ============================= @RebellionRider ============================= ►►►Connect With Us ============================= https://www.instagram.com/RebellionRider/ https://www.facebook.com/TheRebellionRider/ https://twitter.com/RebellionRider https://www.linkedin.com/in/mannbhardwaj/ ============================= ►►►Books I refer to ============================= PL/SQL https://amzn.to/2QE1jX0 Performance Tuning https://amzn.to/2sgiAw4 1z0-071 Exam https://amzn.to/2sgfeJw Python Programming https://amzn.to/305UEbh ============================= ►►►AFFILIATE DISCLOSURE: ============================= Some of the links used in the description will direct you to Amazon.in. As an Amazon Associate, I earn from qualifying purchases at no additional cost to you. #RebellionRider