Foreign keys are a fundamental aspect of relational databases, as they enforce referential integrity between related tables. However, foreign key relationships can also cause performance issues, particularly if the foreign key is untrusted. An untrusted foreign key occurs when SQL Server is unable to verify the relationship between two tables, potentially leading to performance issues and data inconsistencies. The Database …
Understanding and Configuring SQL Server Max Memory Setting One of the key aspects of SQL Server Performance tuning is memory management. Among the myriad of settings and configurations, the max server memory setting is crucial for ensuring your SQL Server runs efficiently without adversely affecting the host operating system or other applications. In this blog post, we’ll dive deep into …
Written by Steve Stedman, founder and owner of Stedman Solutions, LLC. Common SQL Server TSQL Error Messages Error 547: “The INSERT statement conflicted with the FOREIGN KEY constraint.” This error occurs when you try to insert a row in a child table that does not have a corresponding row in the parent table. Error 2627: “Violation of PRIMARY KEY constraint. …
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Today Microsoft released a new update for SQL Server. SQL Server 2019 CU28 for 2019 (15.0.4385.2 – August 2024) CU27 + GDR (15.0.4382.1 – July 2024) 2024-08-01 Here are the latest updates for each version of SQL Server. SQL Server 2008 R2 RTM Download links: SP3 (10.50.6000.34 – September 2014) SP2 (10.50.4000.0 – July 2012)None SQL Server 2022 RTM Download links: NoneCU14 …
Wait statistics, in the context of SQL Server, refer to the amount of time that a query spends waiting to access data in the database. When a client application requests data from the database, the request is placed in a queue and the client application must wait for its turn to access the data. The time that the query spends …