Yes, views can have a clustered index assigned and, when they do, they'll store temporary results that can speed up resulting queries. Microsoft's own documentation makes it very clear that Views can improve performance.

A view is limited to whatever can be expressed in a single SELECT statement (well, possibly with CTEs and a few other tricks), but in general, a view is tied to declarative forms of queries.

Apr 24, 2018 · So, the next time you come across claims that a view will make your query faster, remember that it’s not a guaranteed solution. Instead, focus on writing efficient queries and utilize tools to analyze and optimize query performance.

Apr 15, 2017 · Views are generally just an encapsulation of a SQL statement but can be materialized by created an index on a view. Use caution with nested views as those are more difficult for SQL server to optimize.

Feb 17, 2021 · Views and how they affect and SQL Server performance. So, views can have a negative impact on query performance in SQL Server. Joining two views that have common base tables can cause extra work for SQL Server. Nested views, a view that calls another view, can similarly have an adverse affect.

Oct 30, 2020 · This tip will show how to measure the difference in performance of these different TSQL constructs to help figure out the best choice for a given query. The performance tuning methodology shown will work in many other performance tuning scenarios as well!

Sep 20, 2013 · I would like to benchmark a SQL query within SQL Server. What is the best approach to accomplish this in the most accurate way? My idea was as follows --> record start-time; execute query; record end-time; perform a date diff between start-time and the end-time and output to milliseconds or microseconds.

Mar 16, 2021 · My concern is the performance of the view would be significantly slower to run when selecting from a view than it would to directly query the tables. How would this work? Would the performance be the same as querying the table directly or do I have a valid concern? Thanks.

In this article, we're going to look into our recommended technique to benchmark SQL queries to find the fastest alternative. We also recommend this technique in our SQL Masterclass training. Let's assume we're using the Sakila database. Which of the following logically equivalent queries do you think will be the fastest?

Sep 2, 2024 · Choosing between normal and materialized views depends on your performance needs and data characteristics. Normal views are flexible but can be slow for complex queries. Materialized views...