Category containing DBA Scripts
SQL Server Error Logs are one of the most valuable troubleshooting resources for DBAs. Learn how to review them daily, identify warning signs such as login failures, I/O errors, corruption, and memory pressure, and proactively prevent production issues with practical SQL queries and best practices.
Review SQL Server Error Logs Daily: A Simple Habit Every DBA Should Follow Read Post Ā»
Keep this Azure SQL DBA Cheat Sheet handy for essential commands, monitoring, Query Store, DMVs, security, backups, performance tuning, and administration best practices.
Azure SQL DBA Cheat Sheet Read Post Ā»
Learn how to solve the SQL Server Gaps and Islands problem to identify consecutive day streaks using ROW_NUMBER(), CTEs, and practical real-world examples.
Mastering the “Gaps and Islands” Problem in SQL Server: Finding Consecutive Day Streaks Read Post Ā»
Introduction: Why Understanding Joins vs Subqueries Matters Developers often debate whether a SQL join or a subquery performs better. The
SQL Joins vs Subqueries: Introduction and Performance Differences Explained Read Post Ā»
When writing complex SQL, developers often ask: Should I use a CTE, a Temp Table, or a Derived Table? All
CTEs vs Temp Tables vs Derived Tables: Which One Should You Use? Read Post Ā»
Many SQL developers choose CTEs, Temp Tables, or Derived Tables based on syntax or readability – but the execution plan
Execution Plan Analysis: CTEs vs Temp Tables vs Derived Tables Read Post Ā»
1. Requirement Analysis – Understand What Youāre Building āA good database starts with understanding the data – not creating the
Different Strategies for Designing a Database – From Start to Finish Read Post Ā»
1. Database Fundamentals (The Core Foundation) āYou canāt tune what you donāt understand.ā Before diving into advanced topics, you must
The 8 Pillars of a Modern Database Professional: Skills Every DBA Must Master Read Post Ā»
Introduction to Database Design Concepts Database design is the foundation of efficient data management systems. It determines how data is
Database Normalization vs Denormalization: When to Use Each Read Post Ā»
Introduction: Why Temporary Structures Matter in SQL Server SQL Server provides several ways to store temporary data: temp tables, global
Temp Table vs Global Temp Table vs Temp Variable: The Ultimate Performance Comparison Read Post Ā»
Introduction As databases grow and applications scale, SQL performance tuning becomes one of the most valuable skills for a Database
Top SQL Performance Tuning Techniques Every DBA Should Know Read Post Ā»
Introduction Data is one of your organizationās most valuable assets and securing it should be your top priority.With rising cyber
SQL Server Security Best Practices: From Logins to Encryption Read Post Ā»
Introduction A great database design is like a strong foundation – everything built on top of it depends on its
10 Common Mistakes to Avoid While Designing a Database Read Post Ā»
Introduction Slow queries can cripple your applicationās performance, frustrate users, and overload your servers.As databases grow and workloads become more
SQL Server Performance Tuning: 10 Proven Techniques to Speed Up Your Queries Read Post Ā»
Introduction SQL joins are one of the most essential and tricky parts of database querying.They help you combine data from
10 Common Mistakes to Avoid While Using SQL Joins Read Post Ā»
Introduction Even the best developers and DBAs make mistakes when writing SQL – it happens to everyone. Some of these
20 Common SQL Server Mistakes Developers Make (and How to Fix Them) Read Post Ā»
Whenever a DBA is firefighting a database issue, having a reliable set of SQL troubleshooting scripts is crucial. These scripts
10 Essential SQL Server Scripts Every DBA Must Have for Performance Troubleshooting Read Post Ā»
Introduction If the SQL Server instance is slow, the most valuable diagnostic tool is often the simplest: checking Wait Types.
Top 10 SQL Server Wait Types Explained & Fixed Read Post Ā»
Parameter Sensitive Plan Optimization (PSPO) In SQL Server 2022, Parameter Sensitive Plan Optimization (PSPO) is an intelligent query processing feature
What is Parameter Sensitive Plan Optimization (PSPO)? Read Post Ā»
š¹ Effect of CPU, RAM, and Disk I/O on Database Performance The performance of a database is heavily dependent on
Effect of CPU, RAM, and Disk I/O on Database Performance Read Post Ā»
In todayās digital landscape, choosing the right database architecture is crucial for performance, security, scalability, and cost efficiency. The two
Cloud vs. On-Premise Database Architecture: A Strategic Comparison Read Post Ā»
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