von Uwe Ricken | Jan. 1, 2025 | SQL Blog
Do you also think that an INDEX REBUILD triggers a FREEPROCCACHE? Things always get a little quieter between Christmas and New Year and you do things that you don’t have as much time for during the rest of the year. For example, you might watch a few SQL...
von Uwe Ricken | Dez. 30, 2024 | DB Engine, Indexierung, SQL Blog, Statistiken
In the realm of data management, maintaining optimal query performance is paramount. Microsoft SQL Server provides a powerful feature—automatically generated statistics objects—that plays a crucial role in this endeavor. These statistics objects are vital for the...
von Uwe Ricken | Dez. 28, 2024 | DB Engine, Optimierung, SQL Blog, Statistiken, Tipps und Tricks
Which technique do you prefer when you create a stored procedure and need to work with temporary data? We know there is no definitive answer to this, but there are workloads where a Table Variable is always preferable to a Temporary Table. Workload The stored...
von Uwe Ricken | Dez. 21, 2024 | 300, DB Engine, SQL Blog, Statistiken
This week I was called out twice to an incident at a customer’s site where a massive blocking problem occurred in the web shop. The root cause was the AUTO_UPDATE STATISTICS option. One blog article is not enough to explain the complexity of this problem....
von Uwe Ricken | Dez. 20, 2024 | Administration, Informationen, SQL Blog, Statistiken
In customer meetings, I am often asked about the formula that Microsoft SQL Server uses to automatically update statistics. I always have to look it up myself because this formula depends on a number of factors. For this reason, I decided to develop my own...
von Uwe Ricken | Dez. 16, 2024 | SQL Blog
Partitioning is, among other things, a great feature when it comes to storing new data in the table as quickly as possible. The locking behavior for the table in particular is a decisive advantage of concurrency when using LOCK_ESCALATION = AUTO. There are a few...
