SQL Exercise – 2
SQL Exercise: Write a query to find the following details for each department: The total hours worked by employees on all projects. The number of… Read More »SQL Exercise – 2
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SQL Joins
SQL RIGHT JOIN
SQL RIGHT JOIN or RIGHT OUTER JOIN returns all rows from the right table and the matching rows from the left table.
SQL Server JOINS
A JOIN clause is used to combine two or more related tables. Tables are related to each other using foreign key constraints.