added 2 and 1b point

Lab/Lab#6/lab6_done.sql

@@ -9,24 +9,82 @@ b) Напишите программу на языке PL/SQL, печатающ
 и имя сотрудника с идентификатором 1 и всех его подчинённых, как
 прямых, так и подчинённых более низкого ранга. */
 
-CREATE OR REPLACE PROCEDURE department_names() AS $$
-DECLARE d_attrs RECORD; 
-BEGIN
+-- CREATE OR REPLACE PROCEDURE department_names() AS $$
+-- DECLARE d_attrs RECORD; 
+-- BEGIN
 
-FOR d_attrs IN WITH RECURSIVE tmp AS ( 
-    SELECT id, first_name, last_name, manager_id, 1 AS level 
-    FROM bd6_employees 
-    WHERE manager_id = 1 or id = 1 
-    UNION ALL 
-    SELECT e.id, e.first_name, e.last_name, e.manager_id, t.level + 1 
-    FROM bd6_employees e JOIN tmp t ON e.manager_id = t.id ) 
+-- FOR d_attrs IN WITH RECURSIVE tmp AS ( 
+--     SELECT id, first_name, last_name, manager_id, 1 AS level 
+--     FROM bd6_employees 
+--     WHERE manager_id = 1 or id = 1 
+--     UNION ALL 
+--     SELECT e.id, e.first_name, e.last_name, e.manager_id, t.level + 1 
+--     FROM bd6_employees e JOIN tmp t ON e.manager_id = t.id ) 
+
+-- SELECT * FROM tmp 
+-- LOOP 
+--     RAISE INFO ' % % ', d_attrs.first_name, d_attrs.last_name; 
+-- END LOOP; 
+-- END $$ LANGUAGE plpgsql; 
+-- CALL department_names();
+
+-- Пункт а)
+WITH RECURSIVE tmp AS (
+SELECT id, first_name, last_name, manager_id, 1 AS level
+FROM bd6_employees
+WHERE manager_id = 1 or id = 1
+UNION ALL
+SELECT e.id, e.first_name, e.last_name, e.manager_id, t.level + 1
+FROM bd6_employees e JOIN tmp t ON e.manager_id = t.id )
 
 SELECT * FROM tmp
-LOOP 
-    RAISE INFO ' % % ', d_attrs.first_name, d_attrs.last_name; 
-END LOOP; 
+
+-- Пункт б)
+CREATE OR REPLACE PROCEDURE department_names(integer) AS $$
+DECLARE 
+	d_attrs RECORD;
+	i integer;
+	l integer;
+BEGIN
+FOR d_attrs IN 
+	(
+	SELECT id,last_name, first_name, manager_id
+	FROM bd6_employees 
+	ORDER BY manager_id
+	)   
+	LOOP
+	IF d_attrs.manager_id=$1 THEN
+	 	RAISE INFO ' % % % % ', d_attrs.first_name, d_attrs.last_name, d_attrs.id, d_attrs.manager_id;   
+		l:= d_attrs.id;
+    	CALL department_names(l); 
+	END IF;
+	END LOOP; 
 END $$ LANGUAGE plpgsql; 
-CALL department_names();
+
+
+CREATE OR REPLACE PROCEDURE department_names2(integer) AS $$
+DECLARE
+	d_attrs RECORD;
+	BEGIN
+	FOR d_attrs IN 
+	(
+	SELECT 
+		id,
+		last_name, 
+		first_name, 
+		manager_id   
+	FROM bd6_employees 
+	ORDER BY manager_id
+	)
+      
+	LOOP   
+	IF d_attrs.id=$1 THEN   
+	RAISE INFO ' % % % % ', d_attrs.first_name, d_attrs.last_name, d_attrs.id, d_attrs.manager_id;
+    END IF;
+	END LOOP; 
+CALL department_names($1);
+END $$ LANGUAGE plpgsql; 
+CALL department_names2(4);  
 
 
 -- Task 2 --
@@ -60,6 +118,32 @@ LOOP
       m_salary := ((current_salary + mod_salary) / 100) * 100;
 END IF;
 
+RAISE NOTICE 'Employee: % % || Modified Salary: %', employee_rec.last_name, employee_rec.first_name, m_salary;
+END LOOP;
+END $$ LANGUAGE plpgsql;
+
+CALL print_employees();
+CREATE OR REPLACE PROCEDURE print_employees() AS $$
+DECLARE
+current_salary INTEGER;
+m_salary INTEGER;
+mod_salary INTEGER := 0;
+employee_rec RECORD;
+BEGIN
+FOR employee_rec IN (
+   SELECT last_name, first_name, salary_in_euro 
+   FROM bd6_employees 
+   ORDER BY salary_in_euro) 
+
+LOOP
+   current_salary := employee_rec.salary_in_euro;
+
+   IF mod_salary=0 THEN
+      m_salary := (current_salary / 100) * 100;
+   ELSE
+      m_salary := ((current_salary + mod_salary) / 100) * 100;
+END IF;
+
 RAISE NOTICE 'Employee: % %, Modified Salary: %', employee_rec.last_name, employee_rec.first_name, m_salary;
 mod_salary := current_salary - m_salary;
 END LOOP;
@@ -141,3 +225,34 @@ end case;
 END LOOP; 
 END $$ LANGUAGE plpgsql; 
 call f();
+
+-- Task 7 from lab4 -- 
+
+
+
+
+
+
+CREATE OR REPLACE PROCEDURE department_names(integer) AS $$DECLARE d_attrs RECORD;
+i integer;l integer;
+BEGIN
+FOR d_attrs IN (   SELECT id,last_name, first_name, manager_id
+   FROM bd6_employees order by manager_id )   
+   LOOP
+      if d_attrs.manager_id=$1 then
+    RAISE INFO ' % % % % ', d_attrs.first_name, d_attrs.last_name, d_attrs.id, d_attrs.manager_id;    l:= d_attrs.id;
+    call department_names(l);    end if;
+END LOOP; 
+END $$ LANGUAGE plpgsql; 
+
+
+CREATE OR REPLACE PROCEDURE department_names2(integer) AS $$
+DECLARE d_attrs RECORD;
+BEGINFOR d_attrs IN (
+   SELECT id,last_name, first_name, manager_id   FROM bd6_employees order by manager_id )
+      
+LOOP   
+   if d_attrs.id=$1 then    RAISE INFO ' % % % % ', d_attrs.first_name, d_attrs.last_name, d_attrs.id, d_attrs.manager_id;
+    end if;END LOOP; 
+CALL department_names($1);END $$ LANGUAGE plpgsql; 
+CALL department_names2(4);

Lab/Lab#6/test3.sql

@@ -34,3 +34,39 @@ BEGIN
 END;
 $$ LANGUAGE plpgsql;
 SELECT rearrange_salaries();
+
+
+
+
+CREATE OR REPLACE FUNCTION update_salaries() RETURNS VOID AS $$
+DECLARE
+    max_salary_employee_id INTEGER;
+    min_salaries numeric[];
+    max_salaries numeric[];
+    i INTEGER;
+    const CONSTANT INTEGER = 10;
+BEGIN
+    -- Получаем заработные платы последних 10 человек с самой маленькой заработной платой
+    SELECT array_agg(id) FROM bd6_employees
+    ORDER BY salary_in_euro ASC
+    LIMIT const INTO min_salaries;
+
+    -- Получаем заработные платы 10 первых человек с самой большой заработной платой
+    SELECT array_agg(id) FROM bd6_employees
+    ORDER BY salary_in_euro DESC
+    LIMIT const INTO max_salaries;
+
+    -- Добавляем заработные платы
+    FOR i IN 1..const LOOP
+        UPDATE bd6_employees
+        SET salary_in_euro = salary_in_euro + min_salaries[i]
+        WHERE id = max_salaries[i];
+    END LOOP;
+
+    -- Удаляем 10 человек с наименьшей заработной платой
+    DELETE FROM bd6_employees
+    WHERE id IN (SELECT unnest(min_salaries));
+
+    RAISE NOTICE 'Заработные платы обновлены и % человек удалены', const;
+END;
+$$ LANGUAGE plpgsql;