View Event: Query store hints demo Query Store hints feature provides an easy-to-use method for shaping query plans without changing application code. This feature is a member of the Intelligent Query Processing family. In this demo-only session, I will show how to use and take advantage of Query Store hints.
I thank Kenneth Fisher (Blog|Twitter) for hosting T-SQL Tuesday #150. The topic for this month is your first technical job(s). I also want to acknowledge Adam Machanic’s vision behind this project. I learned a lot from some of the T-SQL Tuesdays and participated in a few. Thank you, Steve Jones (Blog|Twitter), for coordinating this program. If […]
There is a new DMV currently in preview which returns information about backups of Azure SQL databases except for the Hyperscale tier. Microsoft official documentation is here. If you run the example query as-is from the above documentation some of the columns do not make sense. Instead, use this query where I am joining with […]
View Event: Think like the Cardinality Estimator SQL Server uses a phase during query optimization, called cardinality estimation (CE). This process makes estimates based on the statistics as to how many rows flow from one query plan iterator to the next. Knowing how CE generates these numbers will enable you to write better TSQL code […]
View Event: What the Heck is a Checkpoint and Why Should I Care? An 8K page is the fundamental unit of data storage in SQL Server. For performance reasons, SQL Server performs every data modification operation in memory (buffer pool) and does not write it back to disk immediately. This is where checkpoint comes into […]
