The quality of that query plan is wholly dependent on the quality of the cardinality estimates (i.e., an estimate of the number of rows of data involved in an operation), the order of the operations, ...

An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception. Database engines like SQL Server are incredibly complex ...

I'm not sure it really is actually estimated because as far as I know the only way it can show you what the query plan is is by executing it. So then it really isn't an estimate. I'm sure I'm totally ...

Database performance is rarely a single "fix it and forget it" task. SQL Server workloads shift over time. A sluggish ...

SQL Sentry, LLC., the developer of award-winning software for SQL Server performance monitoring and tuning, is pleased to announce that all Plan Explorer features are ...

Microsoft has just added support for query hints to Azure SQL Database, giving database administrators a powerful tool to manage the performance of ISV application code. Here's how it works. Database ...

With the latest public preview available, it’s time to decide if you want to upgrade to Microsoft’s most cloud-connected version of SQL Server so far. Three decades on, SQL Server is still a database ...

JSON has stolen some of XML's thunder with features such as human and machine readability, a lightweight, compact text structure and support for many software and hardware platforms. JSON (JavaScript ...

SQL Server 2012 includes a lot of new and exciting features. One feature that has caught the imagination of many in the user community is the high-performance feature called Columnstore Indexes.