Nov 18, 2025 · When a table has a clustered index, the table is called a clustered table. If a table has no clustered index, its data rows are stored in an unordered structure called a heap.

Apr 18, 2025 · SQL Server clustering is a high-availability (HA) solution that ensures minimal downtime by allowing automatic failover to a secondary server if the primary fails.

Mar 12, 2025 · Affinity is a failover clustering rule that establishes a relationship between two or more roles (or resource groups) to keep them together in the same node. AntiAffinity is the opposite, a rule …

In these articles, we’ll explain what clusters are, what they’re good for, and why we like to plan out our clusters in a very specific way. Introduction to SQL Server Clusters with Diagrams – takes you from …

Jan 5, 2026 · There are two main types of indexes: Clustered and Non-Clustered. A Clustered Index defines the physical order of rows in a table. When you create a clustered index on a column, SQL …

Sep 29, 2024 · Learn about using the Windows Server Failover Cluster service with SQL Server and failover cluster instances.

Dec 22, 2023 · When the secondary node becomes operational, the SQL server launches on the virtual server and recovers the database. This architecture is known as active-passive. Multiple Instances: …

May 25, 2025 · In this article, we’ll break down what is cluster in SQL, how SQL server clustering works, its benefits, common challenges, and best practices. We’ll also explore how modern cloud …

Dec 31, 2024 · SQL Server failover clustering guide with step by step installation instructions, screen shots and configuration insights.

Feb 26, 2025 · Think of a clustered index as the primary organizer of your data. It defines the physical order of the data rows in a table. When you create a clustered index on a table, SQL Server sorts the …