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.
Human Resources database
A collection of MySQL and SQL learning exercises, practice tasks, and database concepts shared on LinkedIn.
A repository of more advanced SQL Server queries, including Common Table Expressions (CTEs) and self-joins.
An enterprise-scale SQL logistics audit diagnosing spatial and temporal fulfillment friction across 32M+ transaction rows to optimize warehouse routing and labor utilization.
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.
[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.
Examples of SQL join techniques applied in real-world analytics projects, including inner join, left join, right join, full join, and self join.
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).
[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).
ActiveRecord Self-Join Association
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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