SQL Server Day 8 - Index and Execution Plan with Live Performance Tuning
The meeting discussed the use of scalar functions, multi-value functions, and the ability to declare multiple parameters in SQL. The importance of understanding SQL architecture before practical applications was emphasized. The team explained the concept of indexes as fundamental to SQL and providing faster data retrieval. The hierarchy of objects in SQL was clarified, including tables, views, functions, and primary keys. The speaker explained the concept of data optimization in SQL and the importance of efficient data retrieval. The meeting also discussed the distinctions between clustered and non-clustered indexes in a database. The team demonstrated how to create a clustered index and how to compare different execution plans to see the difference in performance. The speaker discussed the concept of logical operations and clustered index seeks. The team also discussed the process of creating a non-trusted index and a clustered index using the graphical user interface (GUI). The discussion centered around the importance of indexes for improving SQL query performance.