Oracle Database Guide 1Z0 071 Press

Many beginners solve this SQL interview question using two queries and a UNION. But an experienced SQL developer solves it using a single WHERE condition. In this short video, you will learn: • How beginners approach this SQL problem • Why the UNION approach is not efficient • How experts write a cleaner and faster SQL query • How small logic changes can improve SQL performance If you are preparing for SQL interviews or learning data analysis with SQL, understanding this type of thinking is very important. Want to learn SQL the practical way? I run Live SQL Training where we focus on: • Writing real SQL queries • Solving interview-style problems • Building strong SQL fundamentals • Practicing real-world data analysis scenarios The next batch starts next Monday. ------------------------------------------------------------------------ ►►►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