http://smhoseini.ir/wp-content/uploads/2025/09/Optimizing-Heavy-Queries-in-SQL-Server_Running-Total-Case-Study.mp4 Query performance optimization is one of the most critical challenges in database management. Even a well-designed system may face performance bottlenecks when queries grow in complexity or when they are executed against large datasets. Among the common performance issues, calculating Running Totals stands out as a frequent requirement in reporting and analytics workloads — but it can also become a significant source of inefficiency if not implemented correctly. In this case study, I will share a real-world example from my recent work with SQL Server, where a heavy query built on a large view suffered from slow performance due to

1 — Introduction SQL Server 2025 is Microsoft’s newest database platform, and SSMS (SQL Server Management Studio) is the primary, free GUI for administering it. In this guide, you’ll get a clean, practical path to: download official installers perform a reliable SQL Server 2025 setup install the latest SSMS verify your environment with a quick health check. The walkthrough is designed for developers, data professionals, and DBAs who want a frictionless installation with predictable outcomes. We’ll focus on best-practice choices that work for most machines (Developer or Express editions for non-production; Standard/Enterprise for licensed deployments), clarify each installer option as you

SQL Server 2025 Key New Features and Their Uses AI & Vector Capabilities Vector Data Type & SearchSQL Server now supports a native VECTOR data type that stores embeddings efficiently. You can perform similarity searches inside the database using vector indexes (DiskANN), making tasks like recommendation systems and semantic searches much faster and easier. AI Model IntegrationYou can register and use AI models (e.g. ONNX, Azure, OpenAI) directly from T‑SQL. This means you can run machine learning logic—like generating embeddings or running inference—inside the database without external tools. Real-Time Change Event Streaming Change Event Streaming (CES)SQL Server can now publish data

SQL is one of the most in-demand skills for MNC interviews, especially for backend and data-related roles. Almost every company uses SQL to store and manage data efficiently. If you want to stand out, mastering SQL is a must! ✔ Structured & Reliable Organizes data in tables with clear relationships.✔ Powerful Querying – Retrieve, update, and manipulate data with ease.✔ Data Integrity – Ensures accuracy and consistency in databases.✓ Scalability – Handles large datasets efficiently.✔ Widely Used Companies use MySQL, PostgreSQL, SQL Server, and more. Common SQL Interview Topics:• Basic Queries (SELECT, INSERT, UPDATE, DELETE)• Joins (INNER, LEFT, RIGHT, FULL)• Indexing