SQL

In SQL, understanding how tables share a relationship is crucial for efficient data management and retrieval in relational databases. This blog post will guide you through the fundamentals of table relationships, using practical examples from our fictional WSDA music database. What are Table Relationships? In a relational database, data is spread across multiple tables. Each […]

Losing my mom back in 2011 was a pivotal moment for me. It reinforced the importance of living a life aligned with one’s purpose and passion. This realization led me to embrace my passion for helping others succeed in data analytics. Today, I want to empower you with a crucial SQL skill that will significantly

In the realm of SQL, the ability to categorize and analyze data efficiently can significantly impact business decision-making. One of the powerful tools at your disposal is the CASE statement, which employs IF THEN logic to create new fields based on user-specified conditions. This blog post will walk you through a practical example of using

Filtering data in SQL can get complex, especially when multiple criteria are involved. One powerful approach is using brackets to control the order of operations. In this guide, we will explore how to effectively use brackets and understand the order of operations in SQL through a real-world example from WSDA Music Management. Understanding Bracket and

Filtering data in SQL often involves specifying multiple criteria. One powerful tool for handling such queries is the OR operator. In this post, we will explore how to use the OR operator in SQL with a real-world example from WSDA Music Management. Understanding the OR Operator in SQL Basic Concept The OR operator allows you