A Foreign Key Join Elimination Limitation In SQL Server скачать в хорошем качестве

A Foreign Key Join Elimination Limitation In SQL Server

In this video, I dive into a peculiar and somewhat annoying limitation involving foreign keys and join elimination in SQL Server. I explore how, under certain circumstances, SQL Server's confidence in the presence of data through foreign keys can waver when checking for missing or non-existent records, leading to unnecessary full table scans. This behavior is particularly frustrating given its inconsistent nature and the rare utility it provides. If you're interested in supporting this channel, consider becoming a member sponsor with low-cost options available. Your likes, comments, and subscriptions also make my day, so don't hesitate to engage! Additionally, if you need SQL Server consulting or performance tuning training, I offer affordable packages that can help optimize your database operations. CHAPTERS 00:00:00 - Introduction 00:00:59 - Foreign Key Meme White Knighting 00:03:07 - Data Warehouse Considerations 00:04:12 - Sponsorship Options 00:07:41 - Query Plan Analysis 00:09:21 - SQL Server's Dumbness 00:11:16 - Conclusion ━━━━━━━━━━━━━━━━━━━━━━━━━━ 📚 TRAINING & COURSES ━━━━━━━━━━━━━━━━━━━━━━━━━━ Get AI-Ready With Erik https://training.erikdarling.com/get-... SQL Server Performance Engineering Course https://training.erikdarling.com/sql-... Learn T-SQL with Erik https://training.erikdarling.com/lear... Everything Bundle: https://training.erikdarling.com/?cou... ━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ CONSULTING & SERVICES ━━━━━━━━━━━━━━━━━━━━━━━━━━ Need SQL Server performance help? https://training.erikdarling.com/sqlc... ━━━━━━━━━━━━━━━━━━━━━━━━━━ 💬 CONNECT ━━━━━━━━━━━━━━━━━━━━━━━━━━ Ask questions at Office Hours https://erikdarling.com/officehours/ Become a channel member    / @erikdarlingdata   ━━━━━━━━━━━━━━━━━━━━━━━━━━