new

2026-09-24 08:00:16 +00:00 · 2023-11-27 12:51:56 +03:00
parent 3a37e1778f
commit d177467c09
2 changed files with 170 additions and 12 deletions
@@ -0,0 +1,148 @@
+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;
+
+CREATE OR REPLACE PROCEDURE department_names() AS $$ 
+DECLARE d_attrs RECORD; 
+BEGIN
+
+FOR d_attrs IN 
+WITH RECURSIVE tmp AS ( 
+	SELECT 
+	 	id, 
+	 	first_name, 
+	 	last_name, manager_id, 
+	 	1 AS level 
+	 FROM bd6_employees 
+	 WHERE manager_id = 1 or id = 1 
+	UNION ALL 
+	SELECT 
+		e.id, 
+		e.first_name, 
+		e.last_name, 
+		e.manager_id, 
+		t.level + 1 
+	FROM bd6_employees e 
+	JOIN tmp t ON e.manager_id = t.id )
+	SELECT * FROM tmp LOOP RAISE INFO ' % % ',
+
+d_attrs.first_name, d_attrs.last_name; 
+END LOOP; 
+END $$ LANGUAGE plpgsql; 
+CALL department_names();
+
+DECLARE
+    prev_employee NUMBER := 0;
+    mod_salary NUMBER;
+BEGIN
+    FOR tmp IN (
+        SELECT first_name, last_name, salary,
+               ROW_NUMBER() OVER (ORDER BY salary) AS salary_rank
+        FROM employees
+    )
+    LOOP
+        IF emp.salary_rank = 1 THEN
+            modified_salary := FLOOR(emp.salary / 100) * 100; -- округляем до сотен в меньшую сторону
+        ELSE
+            modified_salary := FLOOR((emp.salary + previous_remainder) / 100) * 100;
+            previous_remainder := (emp.salary + previous_remainder) - modified_salary;
+        END IF;
+
+        DBMS_OUTPUT.PUT_LINE('Фамилия: ' || emp.last_name || ', Имя: ' || emp.first_name || ', Модифицированная заработная плата: ' || modified_salary);
+    END LOOP;
+END;
+
+
+CREATE OR REPLACE PROCEDURE f() AS $$ 
+DECLARE d_attrs RECORD; 
+BEGIN
+
+FOR d_attrs IN 
+    WITH RECURSIVE tmp AS ( 
+        SELECT i AS f1, i2 AS f2, i3 AS f3,i4 AS f4,i5 AS f5 
+        FROM generate_series(1,200) i)
+
+SELECT * FROM tmp LOOP RAISE INFO ' % % % % %',
+
+d_attrs.f1, d_attrs.f2, d_attrs.f3, d_attrs.f4, d_attrs.f5; END LOOP; 
+END $$ LANGUAGE plpgsql; 
+CALL f();
+
+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;
+
+CREATE OR REPLACE PROCEDURE department_names() AS $$ 
+DECLARE d_attrs RECORD; 
+BEGIN
+
+FOR d_attrs IN 
+WITH RECURSIVE tmp AS ( 
+	SELECT 
+	 	id, 
+	 	first_name, 
+	 	last_name, manager_id, 
+	 	1 AS level 
+	 FROM bd6_employees 
+	 WHERE manager_id = 1 or id = 1 
+	UNION ALL 
+	SELECT 
+		e.id, 
+		e.first_name, 
+		e.last_name, 
+		e.manager_id, 
+		t.level + 1 
+	FROM bd6_employees e 
+	JOIN tmp t ON e.manager_id = t.id )
+	SELECT * FROM tmp LOOP RAISE INFO ' % % ',
+
+d_attrs.first_name, d_attrs.last_name; 
+END LOOP; 
+END $$ LANGUAGE plpgsql; 
+CALL department_names();
+
+CREATE OR REPLACE PROCEDURE modified_salary() AS $$ 
+DECLARE
+    prev_employee numeric := 0;
+    mod_salary numeric := (
+	SELECT FLOOR(min(salary_in_euro) / 100) * 100
+	FROM bd6_employees
+		);
+	d_attrs RECORD;
+BEGIN
+    FOR d_attrs IN  WITH tmp AS (
+        SELECT first_name, last_name, salary_in_euro
+        FROM bd6_employees
+		ORDER BY salary_in_euro ASC
+    )
+	SELECT * FROM tmp
+	RAISE INFO ' % % % ',
+		d_attrs.last_name,
+		d_attrs.first_name,
+		mod_salary;
+    LOOP
+		mod_salary := FLOOR((d_attrs.salary_in_euro + prev_employee) / 100) * 100;
+        prev_employee := (d_attrs.salary_in_euro + prev_employee) - mod_salary;
+		RAISE INFO ' % % % ',
+		d_attrs.last_name,
+		d_attrs.first_name,
+		mod_salary;
+    END LOOP;
+END $$ LANGUAGE plpgsql;
+CALL modified_salary();