A Deep Dive into Non‑Clustered Indexes
Unlock performance with non-clustered indexes in SQL Server and learn best practices for effective query optimization.
Performance
Creating Indexes that Cover a Query
Explore the importance of indexes that cover a query and how they can improve SQL Server performance and eliminate lookups.
Multi‑Column Indexing in SQL Server
Unlock the power of Multi‑Column Indexing in SQL Server to optimize performance and reduce expensive query costs.
Row Versioning in SQL Server
Row versioning fundamentally changes how SQL Server handles read operations during write transactions. Instead of blocking, SQL Server can serve a previous version of the row. We enable row versioning in SQL Server by turning on READ_COMMITTED_SNAPSHOT ISOLATION (RCSI). In this post we will demonstrate blocking without row versioning and…
Writing SARGable Expressions in T‑SQL
Learn about Writing SARGable Expressions in T‑SQL to maximize SQL Server performance and efficiency with your queries.
Concurrency: Phantom Reads
A closer look at the Serializable Transaction Isolation Level and how it could prevent Phantom Reads concurrency issues in SQL Server.
Concurrency: Inconsistent Analysis
A closer look at the Repeatable Read Transaction Isolation Level and how it could help with Inconsistent Analysis concurrency issues in SQL Server.
Concurrency: Lost Updates
A closer look at the Read Committed Transaction Isolation Level and how it could allow Lost Update concurrency issues in SQL Server.
Concurrency: Dirty Reads
A closer look at the Read Uncommitted Transaction Isolation Level and how it could allow Dirty Reads in SQL Server.
What are Locks?
Explore SQL Server locks for transaction isolation to prevent data inconsistencies and ensure smooth database operations.