Advanced SQL for Data Analytics. A collection of problem-solving solutions covering complex Joins, Window Functions, CTEs, and Query Optimization. Includes real-world interview questions, schema ...

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Aggregate functions help turn large datasets into simple summaries used across many fields. GROUP BY and HAVING allow structured grouping and filtering of data for clearer reports. Functions like ...

Learning SQL is a great move for anyone working with data, but actually getting good at it can feel tricky, especially if you don’t have a database handy. Luckily, there are tons of free places online ...

Getting good at SQL for interviews can feel like a puzzle. You know the basics, but putting them together in a way that impresses people is another thing entirely. Luckily, there are great tools out ...

This post is part one of a series. Attention is a multifaceted process that manages the mental controls needed for school or work. Filtering incoming information to determine its importance (saliency) ...

create database exam ; use exam; -- Employees table CREATE TABLE Employees ( emp_id INT, name VARCHAR(50), dept_id INT, salary INT, join_date DATE ); -- Departments table CREATE TABLE Departments ( ...

Executive function skills are crucial to helping students thrive in their schooling and yet they develop unevenly. Dr Pooky Knightsmith explores practical strategies teachers can use to help students, ...

Going out and partying your face off has its time and place, but sitting down with your closest buddies (or even a freshly acquainted flock) and playing some wholesome-adjacent party games just hits ...