Itzik Ben-gan T-sql Fundamentals < VALIDATED • 2026 >

Week 4 — Advanced window functions & APPLY

: Every chapter includes rigorous hands-on problems that force you to apply the theory. itzik ben-gan t-sql fundamentals

: Alex learned to summarize millions of transactions into a simple "Monthly Revenue" report using GROUP BY and powerful aggregate functions. The Transformation Week 4 — Advanced window functions & APPLY

Cursors are used to iterate over a result set and perform operations on each row. Itzik Ben-Gan discusses the different types of cursors available in T-SQL, including forward-only, static, and dynamic cursors. He also provides guidance on when to use cursors and how to optimize their performance. itzik ben-gan t-sql fundamentals

WITH cte AS ( SELECT empid, YEAR(orderdate) AS orderyear FROM orders ) SELECT * FROM cte WHERE orderyear = 2020;