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4 deleted inheritance, course deadline_date

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SEK1RO
2026-03-31 18:21:22 +03:00
parent b268cedad6
commit 2cfc404636
3 changed files with 35 additions and 57 deletions
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23
4/data.js
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@ -150,9 +150,9 @@ const ClassTypes = ['Theory', 'Practice']
const RegistrationStatuses = ['NotPaid', 'Paid']
const EquipmentUsageTypes = ['PayOnce', 'PayMonthly']
function Values(callback) {
function Values(callback, factor = 1) {
let res = 'VALUES\n'
const count = 5
const count = 5 * factor
for (let i = 0; i < count; i++) {
res += callback()
@ -167,14 +167,21 @@ function Values(callback) {
}
// Person
let script = 'INSERT INTO "Person" (full_name, passwd_hash) ' + Values(() => {
return `(${GenFullName()}, ${GenPasswdHash()})`
}, 2)
let person_id = 1
// Master
let script = 'INSERT INTO "Master" (full_name, passwd_hash, passport, readme) ' + Values(() => {
return `(${GenFullName()}, ${GenPasswdHash()}, ${GenPassport()}, 'aboba')`
script += 'INSERT INTO "Master" ("Person_id", passport, readme) ' + Values(() => {
return `(${person_id++}, ${GenPassport()}, 'aboba')`
})
// Client
script += 'INSERT INTO "Client" (full_name, passwd_hash, phone, email, billing_account) ' + Values(() => {
return `(${GenFullName()}, ${GenPasswdHash()}, ${GenPassport()}, ${GenPhone()}, ${GenBillingAccount()})`
script += 'INSERT INTO "Client" ("Person_id", phone, email, billing_account) ' + Values(() => {
return `(${person_id++}, ${GenPhone()}, ${GenEmail()}, ${GenBillingAccount()})`
})
// Studio
@ -183,8 +190,8 @@ script += 'INSERT INTO "Studio" (address, capacity, begin_date, duration) ' + Va
})
// Course
script += 'INSERT INTO "Course" ("Master_id", name, price, duration) ' + Values(() => {
return `(${GenInt(1, 6)}, 'курс ${GenMaxUInt(100)}', ${GenPrice()}, ${GenIntervalHours(20)})`
script += 'INSERT INTO "Course" ("Master_id", name, price, deadline_date) ' + Values(() => {
return `(${GenInt(1, 6)}, 'курс ${GenMaxUInt(3)}', ${GenPrice()}, ${GenTimestamp()})`
})
// Class

39
4/schema.sql
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@ -1,39 +1,40 @@
DROP TABLE IF EXISTS "Person" CASCADE;
DROP SEQUENCE IF EXISTS "PersonId";
DROP TABLE IF EXISTS "Person", "Client", "Master", "Studio", "Course", "Class", "Class_Master", "Registration", "FoodProductEnum", "FoodProduct", "Equipment", "Class_Equipment", "DrugEnum", "Drug", "DrugIntolerance", "ActivityLog";
CREATE SEQUENCE "PersonId";
DROP TYPE IF EXISTS "ClassType", "RegistrationStatus", "EquipmentUsageType";
CREATE TABLE "Person" (
id int PRIMARY KEY DEFAULT nextval('"PersonId"'),
id int GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
full_name text NOT NULL,
passwd_hash bytea NOT NULL
);
CREATE TABLE "Client" (
"Person_id" int UNIQUE NOT NULL,
phone text NOT NULL,
email text NOT NULL,
billing_account text NOT NULL,
PRIMARY KEY (id)
) INHERITS ("Person");
FOREIGN KEY ("Person_id") REFERENCES "Person" (id)
ON DELETE CASCADE
ON UPDATE CASCADE
);
CREATE TABLE "Master" (
"Person_id" int UNIQUE NOT NULL,
passport text UNIQUE NOT NULL,
readme text NOT NULL,
PRIMARY KEY (id)
) INHERITS ("Person");
FOREIGN KEY ("Person_id") REFERENCES "Person" (id)
ON DELETE CASCADE
ON UPDATE CASCADE
);
DROP TABLE IF EXISTS "Studio", "Course", "Class", "Class_Master", "Registration", "FoodProductEnum", "FoodProduct", "Equipment", "Class_Equipment", "DrugEnum", "Drug", "DrugIntolerance", "ActivityLog";
DROP TYPE IF EXISTS "ClassType", "RegistrationStatus", "EquipmentUsageType";
CREATE TABLE "Studio" (
id int GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
address text UNIQUE NOT NULL,
@ -48,9 +49,9 @@ CREATE TABLE "Course" (
"Master_id" int,
name text NOT NULL,
price real NOT NULL CHECK (price > 0),
duration interval NOT NULL,
deadline_date timestamptz NOT NULL,
FOREIGN KEY ("Master_id") REFERENCES "Master" (id)
FOREIGN KEY ("Master_id") REFERENCES "Master" ("Person_id")
ON DELETE SET NULL
ON UPDATE CASCADE
);
@ -89,7 +90,7 @@ CREATE TABLE "Class_Master" (
PRIMARY KEY ("Class_begin_date", "Class_Course_id", "Master_id"),
FOREIGN KEY ("Master_id") REFERENCES "Master" (id)
FOREIGN KEY ("Master_id") REFERENCES "Master" ("Person_id")
ON DELETE CASCADE
ON UPDATE CASCADE,
@ -113,7 +114,7 @@ CREATE TABLE "Registration" (
PRIMARY KEY ("Client_id", "Course_id"),
FOREIGN KEY ("Client_id") REFERENCES "Client" (id)
FOREIGN KEY ("Client_id") REFERENCES "Client" ("Person_id")
ON DELETE CASCADE
ON UPDATE CASCADE,

30
регламент.md
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@ -37,36 +37,6 @@
* **Текстовое описание работы не подразумевается, только фиксация результата**
* устная защита на лабораторной работе.
## Лабораторная работа 5
**Аналитические SQL-запросы**
**Срок выполнения: 2 недели**
### **Цель**
Освоить сложные запросы и аналитические возможности SQL.
### **Обязательные требования к запросам**
Все запросы должны:
* использовать CTE;
* возвращать расширенный набор данных (не менее 7 строк вывода).
### **Необходимо реализовать 5 запросов, среди которые должны использоваться:**
1. Сложный JOIN (3+ таблиц) с фильтрами и HAVING.
2. Поиск отсутствующих данных (LEFT JOIN \+ IS NULL).
3. Оконная функция с `ROWS BETWEEN`.
4. Оконная функция смещения (`LAG` / `LEAD`).
### **Отчетные материалы**
* SQL-код запросов;
* примеры выполнения;
краткое описание логики каждого запроса.
## Лабораторная работа 6
**Триггеры и хранимые процедуры**