Understanding INNER JOIN and LEFT JOIN in SQL: Beginner-Friendly Guide
INNER JOIN returns only the rows where matching values exist in both tables. LEFT JOIN returns all rows from the left table, and the matching rows from the right table. Example Let’s say we have two tables: students student_id name 1 Ramesh 2 Priya 3 Amit marks mark_id student_id subject marks 1 1 Maths 90 … Read more