Conteúdo sobre Join em SQL, com explicação, exemplos e exercícios em MySQL
Calculating the 30-day hospital readmission rate from 623 inpatient stay records using a self-join in SQL.
An enterprise-scale SQL logistics audit diagnosing spatial and temporal fulfillment friction across 32M+ transaction rows to optimize warehouse routing and labor utilization.
A repository of more advanced SQL Server queries, including Common Table Expressions (CTEs) and self-joins.
End-to-end data cleaning and exploratory data analysis (EDA) project using MySQL. Includes duplicate detection using window functions, data standardization, null handling, data transformation, and structured SQL-based analysis on real-world layoff datasets.
Examples of SQL join techniques applied in real-world analytics projects, including inner join, left join, right join, full join, and self join.
[PYTHON, FLASK, MYSQL] Connects a flask application to a MySQL database. Uses self join relationships. Shows understanding of validation with users and usernames. Demonstrates CRUD SQL manipulation and execution.
SQL laboratory project demonstrating table classification, aggregation, filtering with GROUP BY / HAVING, and relational joins including self-joins, multiple joins, and equi-joins using a personnel management database (Databases I, UNIWA).
Human Resources database
ActiveRecord Self-Join Association
[MySQL ERD, DB, and quieries] Demonstrates understanding of self join relationship in ERD. SELF JOIN: many to many to same table. In this case.. A user can have a friend (another user from the same table).
A two-phase SQL project that cleans a real-world tech layoffs dataset and performs exploratory analysis to surface trends across companies, countries, industries, and time.
Find duplicates users in Sybase within Sisis Sunrise
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