rebased 1.0

Lab/Lab#2/var1.sql

@@ -0,0 +1,21 @@
+/* Лабораторная работа #2 || Вариант 1 || Гаранян, Епифанов */
+
+SELECT 
+	((30*20)/10)+(20*10) AS "X";
+
+SELECT * 
+FROM locations 
+WHERE postal_code IS NOT NULL;
+
+
+SELECT first_name AS "Имя", last_name AS "Фамилия",
+	   left(upper(first_name), 3) || left(upper(last_name), 2) AS "Идентификатор"
+FROM employees;
+
+
+SELECT  
+	job_id AS "Должность", max(salary) AS "Максимальная зарплата",
+	min(salary) AS "Минимальная зарплата", 
+	to_char(avg(salary), '99999.00') AS "Средняя зарплата"
+FROM employees
+GROUP BY job_id;