This category contains all SQL related articles
Master SQL Server 2025 Vector Search with this practical cheat sheet. Explore embeddings, VECTOR data type, VECTOR_DISTANCE(), VECTOR_SEARCH(), DiskANN indexes, and real-world T-SQL examples for building AI-powered database applications.
SQL Server Vector Search Cheat Sheet: Embeddings, Indexes and T-SQL Examples Read Post »
Traditional SQL search finds matching words and values, while VECTOR_SEARCH finds similar meanings using AI embeddings. Understand the differences with practical SQL Server examples and real-world use cases.
VECTOR_SEARCH vs Traditional SQL Search: What’s the Difference? Read Post »
SQL Server patching requires more than installing the latest update. Learn a practical patching SOP covering pre-patching health checks, backup verification, patch testing, maintenance planning, HA/DR considerations, post-patching validation, and performance monitoring. Discover common DBA mistakes, what to avoid in production, and how to reduce downtime and patching risks.
SQL Server Patching Best Practices: SOP, Mistakes to Avoid Read Post »
Learn how to design SQL Server high availability solutions using Always On Availability Groups, Failover Cluster Instances (FCIs), log shipping, and other approaches. Compare their advantages, limitations, failover behavior, and operational requirements. Discover practical best practices for reducing downtime, planning failover, monitoring replica health, and choosing the right HA architecture for your business.
SQL Server High Availability: Methods, Pros, Cons & Best Practices Read Post »
SQL Server data recovery requires more than restoring a backup. Learn when to use full database restore, point-in-time recovery, tail-log backup, page restore, file restore, piecemeal restore, and selective row recovery. Compare the advantages, limitations, and practical considerations of each method to choose the right recovery strategy and minimize data loss.
SQL Server Data Recovery: Methods, Pros, Cons & When to Use Each Read Post »
SQL Server Error 9002 occurs when the transaction log runs out of reusable space, potentially causing transactions and application operations to fail. Learn how to identify the cause, check log usage and reuse waits, and apply the right fix without risking data or disrupting recovery.
SQL Server Error 9002: Transaction Log Full – Causes & Fixes Read Post »
SQL Server login failures can prevent applications and users from connecting to the database. Learn how to troubleshoot Error 18456, interpret login failure states, check the SQL Server error log, and fix authentication and database access issues safely.
SQL Server Login Failed Errors: Causes & Solutions Read Post »
SQL Server memory pressure can cause slow queries, excessive page reads, and performance degradation. Learn how to identify memory pressure, investigate buffer pool usage, memory grants, and external memory pressure, and apply the right fix using practical DBA troubleshooting techniques.
SQL Server Memory Pressure Troubleshooting: How to Find the Cause and Fix It Read Post »
TempDB problems can cause slow queries, failed transactions, and production performance issues. Learn how to identify common TempDB problems, diagnose their causes using practical T-SQL scripts, and apply safe solutions to improve SQL Server performance.
SQL Server TempDB Troubleshooting: Common Problems & Solutions Read Post »
Struggling with SQL Server deadlocks? Use this practical troubleshooting cheat sheet to understand common causes, capture deadlock graphs, identify root causes, apply effective fixes, and prevent recurring deadlocks in production.
SQL Server Deadlock Troubleshooting Cheat Sheet: Causes, Diagnosis, and Solutions Read Post »
Learn how to configure SQL Server alerts using SSMS and T-SQL. Discover which critical errors, performance conditions, backup failures and SQL Server Agent job failures to monitor, how to configure email notifications, and how to avoid alert fatigue.
SQL Server Alerts: What to Monitor, How to Configure & Why Read Post »
A practical guide for DBAs on planning SQL Server resources. Learn how to interpret workload requirements and decide CPU, memory, storage and server configuration.
SQL Server Resource Allocation: How a DBA Should Plan CPU, Memory, Storage & Servers Read Post »
A practical DBA guide to SQL Server maintenance jobs, including backups, DBCC CHECKDB, index maintenance, statistics updates, cleanup tasks, scheduling frequency, and configuration scripts.
SQL Server Maintenance Jobs: What to Schedule, How Often & Why Read Post »
A practical SQL Server Architecture Cheat Sheet covering query processing, storage engine, memory, databases, files, transaction logs, and data flow with easy-to-understand examples.
SQL Server Architecture Cheat Sheet: Components, Data Flow & Examples Read Post »
Database integrity issues can be stressful in production. Learn how to diagnose SQL Server corruption, investigate the root cause, check backups, and choose the safest recovery approach.
SQL Server Database Integrity Issues: Causes, Diagnosis & Safe Recovery Read Post »
SQL Server CPU suddenly hitting 90–100%? Learn how to identify CPU-intensive queries, analyze execution plans, investigate statistics and plan regression, and fix the real root cause safely.
SQL Server High CPU Troubleshooting: Causes & Solutions Read Post »
A practical SQL JOIN Cheat Sheet covering INNER, LEFT, RIGHT, FULL OUTER and CROSS JOINs with complete result sets, NULL behavior, ON vs WHERE, and SQL Server performance tips.
SQL JOIN Cheat Sheet: INNER, LEFT, RIGHT, FULL, CROSS JOIN, NULLs & Performance Read Post »
Introduction When a SQL Server query is slow, one of the first things a DBA or developer should check is
SQL Server Execution Plan Cheat Sheet: Operators & Examples Read Post »
SQL Server memory grants can significantly affect query performance and concurrency. Learn how to find queries using too much memory, identify insufficient memory grants and spills, and troubleshoot the underlying causes with practical DMV queries and execution-plan analysis.
SQL Server Memory Grant Problems: How to Find Queries That Use Too Much Memory Read Post »
A practical SQL Server Important Concepts Cheat Sheet covering essential and advanced topics including architecture, system databases, pages and extents, execution plans, blocking, deadlocks, DMVs, Extended Events, recovery models, security, and performance troubleshooting.
SQL Server Important Concepts Cheat Sheet: From Basics to Advanced Read Post »
A practical SQL Server & DBA error codes cheat sheet covering 100+ common errors, their meanings, causes, first troubleshooting checks, and solutions for DBAs, SQL developers and database professionals.
SQL Server & DBA Error Codes Cheat Sheet – 100+ Common Errors, Causes & Solutions Read Post »
