SQLWithVJ

SQL Server Database Security Best Practices: A Complete Guide Introduction: In today’s digital world, databases store the most valuable asset of any organization— data . SQL Server is widely used across enterprises, making it a frequent target for cyberattacks . Weak database security can lead to data breaches, financial loss, legal penalties, and reputational damage. This blog explains SQL Server database security best practices , common security issues, their impact, root causes, and how to prevent them using proven techniques and tools. Why SQL Server Database Security Is Important: SQL Server databases often contain: Personal customer data (e.g. Name, DOB, Mobile No, Address, Medical Details, etc) Financial records (e.g. Credit card details, Bank transaction details, etc) Business secrets (e.g. Business contracts between two organizations, its values) Login credentials (e.g. Username, password, etc) A single vulnerability can expo...

SQL Server performance optimization is one of the most debated topics in database management. When performance issues arise, the first question teams ask is: Who is responsible for SQL Server performance — the DBA, the database designer, or the developer? and the general obvious answer is a DBA . But a little reverse engineering will make it clear that a poor DB design and a poorly written code will never make a Database efficient even if a DBA gives it best. Hence the short answer is, everyone shares responsibility, but at different stages and in different ways. Why SQL Server Performance Optimization Is a Shared Responsibility? SQL Server performance is not a single task handled by one role. It is the outcome of design decisions, coding practices, configuration choices, and ongoing maintenance. Poor performance rarely comes from one mistake — it’s usually the result of gaps across multiple roles. Let’s break it down clearly. Role of the Database Designer ...

SQL Server performance optimization is one of the most debated topics in database management. When performance issues arise, the first question teams ask is: Who is responsible for SQL Server performance — the DBA, the database designer, or the developer? and the general obvious answer is a DBA . But a little reverse engineering will make it clear that a poor DB design and a poorly written code will never make a Database efficient even if a DBA gives it best. H ence the short answer is, everyone shares responsibility, but at different stages and in different ways. To understand the responsibilities as a Database Administrator, we must incorporate below mentioned tasks but is not limited to. Performance Optimization as a DBA (Environment & Server Level) 1. Proper Index Maintenance What it means: Over time, indexes become fragmented due to INSERTs, UPDATEs, and DELETEs. Why it matters: Fragmented indexes cause more disk reads → slower queries. Example...

SQL Server performance optimization is one of the most debated topics in database management. When performance issues arise, the first question teams ask is:   Who is responsible for SQL Server performance — the DBA, the database designer, or the developer? and the general obvious answer is a DBA. But a little reverse engineering will make it clear that a poor DB design and a poorly written code will never make a Database efficient even if a DBA gives it best.   Hence the short answer is, everyone shares responsibility, but at different stages and in different ways. To understand the responsibilities as a Database Developer, we must practice below mentioned guidelines for an efficient Database. Performance Optimization as a Database Developer (Query Level) 1. Write SARGable Queries What it means: Queries that can use indexes. Bad: WHERE YEAR(OrderDate) = 2024 Good: WHERE OrderDate >= '2024-01-01' AND OrderDate < '2025-01-01' ...

SQL Server performance optimization is one of the most debated topics in database management. When performance issues arise, the first question teams ask is:   Who is responsible for SQL Server performance — the DBA, the database designer, or the developer? and the general obvious answer is a DBA. But a little reverse engineering will make it clear that a poor DB design and a poorly written code will never make a Database efficient even if a DBA gives it best. Hence the short answer is, everyone shares responsibility, but at different stages and in different ways. To understand the responsibilities as a Database Designer , we must follow below listed tasks while designing a Database in the beginning itself. Performance Optimization as a Database Designer (Structure Level) 1. Correct Data Modeling What it means: Design tables correctly for the workload. Why it matters: Bad design = complex queries = slow performance. Example: OLTP → normalized ta...