Tag: sql
All the articles with the tag "sql".
175 - Combine Two Tables
Solving LeetCode's Combine Two Tables problem with a SQL LEFT JOIN to report person details even when address data is missing.
181 - Employees Earning More Than Their Managers
Solving LeetCode's Employees Earning More Than Their Managers problem using a SQL self join.
SQL Notes
Comprehensive SQL notes covering DDL, DML, DCL, table operations, joins, subqueries, and aggregate functions.