Why Your SQL Queries Are Slow (And How to Fix Them Fast)

Is your database crawling at a snail's pace? Slow SQL queries can kill your app's performance and frustrate your users. In this video, we break down the most common reasons your SQL queries are underperforming and walk you through practical, easy-to-apply fixes, no advanced DBA experience required. What you'll learn: ✔ The #1 mistake that slows down SQL queries ✔ How to use indexes effectively ✔ Query profiling and execution plans explained simply ✔ Real-world optimization examples Chapters in this video: 0:00 - Introduction & Case Study 0:17 - The Problem: Slow Dashboard 0:51 - Orders Table Structure 1:24 - Types of Indexing in MySQL 2:53 - Finding Orders by Status & Date 4:30 - Dataset: 4 Million Records 10:10 - Checking Table Size 13:45 - SHOW INDEX & EXPLAIN Command 16:17 - How to Optimise a Slow Query 16:52 - Creating a Composite Index 20:28 - Results: 2 sec → 0.2 sec ⚡ 21:51 - Can Index Work with One Column? 23:33 - Pros & Cons of Indexing 24:51 - Q&A: Multiple Columns & Indexes 25:39 - Wrap Up _______________________________________________________________ Start your journey from beginner to expert in one of the best Data Science institute in India. Also you can learn Data Analytics, Data Engineering, Business Analytics & Cloud Data Engineering from the IBM, IIT experts and Industry leaders. 𝐌𝐨𝐬𝐭 𝐏𝐨𝐩𝐮𝐥𝐚𝐫 𝐂𝐨𝐮𝐫𝐬𝐞: 🏆 IIT Certified Data Science & ML Course https://ivyproschool.com/data-science... 🏆 IIT Certified Cloud Data Engineering Course https://ivyproschool.com/cloud-data-e... 𝐅𝐢𝐧𝐝 𝐲𝐨𝐮𝐫 𝐂𝐨𝐮𝐫𝐬𝐞: 🚀 Nasscom Certified Data Science with Machine Learning, AI and DL Course https://ivyproschool.com/nasscom-cert... 🚀 Data Science with Visualization Certification Course https://ivyproschool.com/data-science... 🚀 Data Science and Big Data Analytics Certification Course https://ivyproschool.com/data-science... 🚀 Diploma in Data Science, AI, ML, & Big Data https://ivyproschool.com/diploma-in-d... 🚀 Cloud Data Engineering Certification Course https://ivyproschool.com/data-enginee... 🚀 Business Analytics Certification Course https://ivyproschool.com/business-ana... Find more at ivyproschool.com _______________________________________________________________ ⏳ Why should you learn Data Science today? • Future Of Analytics & Data Science | Learn... 🔖 Are you a Fresher? Watch this video to know the Data Science Journey for Freshers: • Data Science Journey for Freshers | Data S... Interested in a Data Science or Data Engineering career? Check out the Ivy Pro School’s top ranked Nasscom, Govt. of India and IBM accredited Data Science and Data Engineering courses: https://ivyproschool.com/ ✅Learn from Ivy Pro School’s Data Science and Data Engineering Students’ Success Stories : • Student Success Story Liked the video? Check out below more playlists on Data Science and Data Engineering learning tutorial, alumni interview experiences, live data science case studies, etc: For more updates follow us on: 👉🏻 Instagram: / ivyproschool 👉🏻 LinkedIn: / ivy-professional-school 👉🏻 Facebook: / ivyproschool 👉🏻 Twitter: / ivyproschool 👉🏻 Telegram Community: https://t.me/learndswithexperts Want to pursue a Data Science Course with Ivy Professional School? Visit us at https://ivyproschool.com You can call us at +91 7676882222 or mail to [email protected].