решение разделу JOIN

ebelykh/postgresql/JOIN/JOIN.sql

@@ -0,0 +1,20 @@
+--Задача 1068
+SELECT p.product_name, s.year, s.price
+FROM Sales s
+JOIN Product p
+ON s.product_id = p.product_id;
+
+--Задача 1378
+SELECT EmployeeUNI.unique_id,
+       Employees.name
+FROM Employees
+LEFT JOIN EmployeeUNI
+ON Employees.id = EmployeeUNI.id;      
+
+--Задача 577
+SELECT e.name, b.bonus
+FROM Employee e
+LEFT JOIN Bonus b
+ON e.empId = b.empId
+WHERE b.bonus < 1000
+   OR b.bonus IS NULL;