Does The FORMAT Function Still Suck For Performance in SQL Server? скачать в хорошем качестве

Does The FORMAT Function Still Suck For Performance in SQL Server?

In this video, I delve into whether the FORMAT function still poses performance issues in SQL Server, particularly when dealing with large datasets. While the FORMAT function is incredibly handy for formatting numbers and dates in a straightforward manner, it can become a bottleneck as row counts increase. I demonstrate this by running two queries-one using FORMAT and one using CONVERT-on a dataset of 24.5 million rows. The results show that while both functions produce equivalent output, the FORMAT function significantly slows down query execution due to its processing in the compute scalar operator, whereas CONVERT performs much faster. This video aims to highlight the importance of considering performance implications when choosing between these functions, especially in environments where throughput is critical. CHAPTERS 00:00:00 - Introduction 00:00:29 - Does the Format Function Still Suck? 00:02:19 - Query Performance Comparison 00:03:45 - Detailed Query Plan Analysis 00:04:21 - Identifying Key Differences 00:05:07 - The Compute Scalar Issue 00:06:00 - Verifying Compute Scalar Time 00:07:00 - Convert Function Recommendation 00:08:09 - Big Data Processing Considerations ━━━━━━━━━━━━━━━━━━━━━━━━━━ 📚 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   ━━━━━━━━━━━━━━━━━━━━━━━━━━