Juan VelezUnderstanding Keys in Data Warehousing: Foreign, Surrogate, Primary, and MoreIn the world of data warehousing, keys play a pivotal role in organizing, maintaining, and retrieving data efficiently. Understanding the…Sep 12Sep 12
Juan VelezMastering SQL Server for Data Engineering: Best Practices, Tips, and Tricks for Efficient ETL…In the fast-paced world of data engineering, efficiency is everything. As businesses become more data-driven, the demand for robust…Sep 7Sep 7
Juan VelezUnlocking the Power of SQL Server Temporal Tables: A Guide to Tracking Historical DataIn today’s data-driven world, the ability to track and analyze changes over time is more important than ever. Whether you’re auditing…Sep 5Sep 5
Juan VelezMastering SQL Server Operations: Create, Read, Update, Delete ExplainedWhen working with SQL Server, mastering CRUD operations — Create, Read, Update, and Delete — is essential. These four operations are the…Sep 1Sep 1
Juan VelezAll You Need to Know About SQL Server Data TypesIntroduction: The Foundation of SQLSep 1Sep 1
Juan VelezTransactional Databases vs. Data Warehouses: Understanding the Differences and Use CasesIn the world of data management, understanding the difference between transactional databases and data warehouses is crucial for making…Aug 31Aug 31
Juan VelezBuilding a Strong Foundation for a SQL Career: What You Need to KnowIn today’s data-driven world, SQL (Structured Query Language) has become an essential skill for anyone looking to build a career in data…Aug 28Aug 28
Juan VelezWhy Learning SQL Is a Game-Changer for Your CareerIn today’s data-driven world, the ability to work with data is a highly valuable skill. Whether you’re in tech, marketing, finance, or any…Aug 28Aug 28
Juan VelezAvoiding Pitfalls in SQL JOINs: Why You Should Be Careful with Functions Like SUBSTRINGSQL JOIN clauses are the backbone of relational database queries, allowing us to combine data from multiple tables based on related…Aug 25Aug 25
Juan VelezMastering SQL Window Functions: What They Are and Why You Should Use ThemIn the world of SQL, Window Functions are a powerful tool that can simplify complex calculations and analyses over a set of rows. Unlike…Aug 24Aug 24