Transact-SQL Data Aggregation and Functions for Beginners

Raw database records are only valuable when you can summarize them into meaningful insights. Learning how to manipulate data and group results in Transact-SQL is the key to unlocking the power of relational databases. In this course, you will transition from writing basic queries to performing complex data transformations and analytical summaries. You will learn to clean text, perform mathematical calculations, manipulate dates, and aggregate data to generate professional reports. What you'll learn: - Understand the foundational mechanics of T-SQL built-in functions and how they process data row-by-row. - Apply string, math, and date-time functions to format and prepare your database output. - Group query results using the GROUP BY clause to summarize large datasets efficiently. - Filter aggregated data using the HAVING clause to isolate specific trends and patterns. - Handle missing or null values safely using modern T-SQL conditional functions. - Write clean, well-formatted SQL code that adheres to industry-standard readability guidelines. The course begins with foundational concepts and core terminology before guiding you through hands-on written syntax exercises. You will progress from single-row scalar functions to multi-row aggregations and grouping techniques. This text-based course is designed for beginners who have a basic understanding of SELECT statements and want to level up their database querying skills. No prior programming or advanced database experience is required. Start reading today to build a strong foundation in T-SQL data analysis.