Hacker

How to Master SQL Joins - Inner, Outer, Cross, and Self-Joins With Examples

Hello there! 👋 I'm Luca, a BI Developer with a passion for all things data, Proficient in Python, SQL and Power BI ...
Hacker

SQL Window Functions: A Quick Review With Examples

Hello there! 👋 I'm Luca, a BI Developer with a passion for all things data, Proficient in Python, SQL and Power BI ...
www.cs.cmu.edu

The Key to Effective UDF Optimization: Before Inlining, First Perform Outlining

SQL is the de facto query language used to interact with databases. Since SQL is declarative, users express the intended result of their query rather than the concrete procedural steps to produce the ...
GitHub

[BUG]: raw SQL fields selected from subqueries should not require manually-defined aliases

GENERIC CASE: I ran into this while doing a simple subquery, generally of the form db.select().from(subquery).orderBy(something), where the subquery includes raw SQL fields. I am effectively selecting ...
GitHub

sql-joins

Step-by-step SQL tutorials and practical examples covering queries, constraints, transactions, and more. Ideal for beginners, interview prep, and anyone looking to master SQL—from basics to advanced.
Healthline

What Do Microaggressions Look Like in Healthcare? Here Are Some Examples

Microaggressions may create a hostile environment for people in historically marginalized groups — especially in the healthcare industry. Microinsults, microassaults, and microinvalidations are the ...
IEEE

Enhanced rough SQL for correlated subqueries

Abstract: We discuss some enhancements of approximate SQL extensions available in Infobright's database technology. We explain how these new enhancements can speed up execution of complex correlated ...