mirror of
https://github.com/ada-dmitry/DB.mephi_ada.git
synced 2026-09-24 08:00:16 +00:00
149 lines
3.6 KiB
PL/PgSQL
149 lines
3.6 KiB
PL/PgSQL
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();
|