https://github.com/keidsid/bsa-2024-db-sql

Binary Studio Academy 2024 "JavaScript: Database and SQL" Lecture Homework
https://github.com/keidsid/bsa-2024-db-sql

binary-studio-academy bsa2024 mermaidjs psql sql

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Binary Studio Academy 2024 "JavaScript: Database and SQL" Lecture Homework

• Host: GitHub
• URL: https://github.com/keidsid/bsa-2024-db-sql
• Owner: KeidsID
• License: mit
• Created: 2024-07-23T07:58:52.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-07-26T12:06:21.000Z (3 months ago)
• Last Synced: 2024-10-11T09:04:30.167Z (27 days ago)
• Topics: binary-studio-academy, bsa2024, mermaidjs, psql, sql
• Homepage:
• Size: 14.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# BSA 2024 DB SQL

Binary Studio Academy "Javascript: Database and SQL" Lecture Homework.

- [Data Definiton](sql/data.sql)

- [Queries](sql/queries/)

## Entity Relationship Diagram

NOTE: Every tables has `created_at` and `updated_at` columns.

```mermaid

---

title: Simple Entity Relationship Diagram

---

erDiagram

  users }o--|{ favorite_movies : has

  favorite_movies }|--o{ movies : contains

  movies }|--|| persons : director

  movies }|--|| countries : production

  movies }|--o| files : poster

  movies }|--|{ movie_characters : has

  movie_characters }|--|{ characters : contains

  movies }|--|{ movie_genres : has

  movie_genres }|--|{ genres : contains

  persons }|--|| countries : home

  persons }|--o| files : photo

  persons }o--|{ person_images: has

  person_images }|--o{ files : contains

  characters }o--|{ character_actors : has

  character_actors }|--|{ persons : contains

```

```mermaid

---

title: Detailed Entity Relationship Diagram

---

erDiagram

  users }o--|{ favorite_movies : has

  favorite_movies }|--o{ movies : contains

  movies }|--|| persons : director

  movies }|--|| countries : production

  movies }|--o| files : poster

  movies }|--|{ movie_characters : has

  movie_characters }|--|{ characters : contains

  movies }|--|{ movie_genres : has

  movie_genres }|--|{ genres : contains

  persons }|--|| countries : home

  persons }|--o| files : photo

  persons }o--|{ person_images: has

  person_images }|--o{ files : contains

  characters }o--|{ character_actors : has

  character_actors }|--|{ persons : contains

  users {

    VARCHAR(50) id PK

    VARCHAR(50) username UK "NOT NULL"

    TEXT first_name "NOT NULL"

    TEXT last_name "NOT NULL"

    TEXT email UK "NOT NULL"

    TEXT password "NOT NULL"

  }

  favorite_movies {

    VARCHAR(50) id PK

    VARCHAR(50) user_id FK "users ON DELETE CASCADE"

    VARCHAR(50) movie_id FK "movies ON DELETE CASCADE"

  }

  files {

    VARCHAR(50) id PK

    TEXT file_name "NOT NULL"

    TEXT mime_type "NOT NULL"

    TEXT source_url "NOT NULL"

  }

  movies {

    VARCHAR(50) id PK

    TEXT title "NOT NULL"

    TEXT description

    INTEGER budget

    DATE release_date

    INTEGER duration

    VARCHAR(50) director FK "persons ON DELETE RESTRICT, NOT NULL"

    VARCHAR(50) production FK "countries ON DELETE RESTRICT, NOT NULL"

    VARCHAR(50) poster FK "files ON DELETE SET NULL"

  }

  movie_characters {

    VARCHAR(50) id PK

    VARCHAR(50) movie_id FK "movies ON DELETE CASCADE, NOT NULL"

    VARCHAR(50) character_id FK,UK "characters ON DELETE CASCADE, NOT NULL"

  }

  movie_genres {

    VARCHAR(50) id PK

    VARCHAR(50) movie_id FK "movies ON DELETE CASCADE, NOT NULL"

    VARCHAR(50) genre_id FK,UK "genres ON DELETE CASCADE, NOT NULL"

  }

  enum_cr[CHARACTER_ROLE_enum] {

    _ leading

    _ supporting

    _ background

  }

  characters {

    VARCHAR(50) id PK

    TEXT name "NOT NULL"

    TEXT description

    CHARACTER_ROLE_enum role "NOT NULL"

  }

  characters }|..|| enum_cr : has

  character_actors {

    VARCHAR(50) id PK

    VARCHAR(50) character_id FK "characters ON DELETE CASCADE, NOT NULL"

    VARCHAR(50) person_id FK "persons ON DELETE CASCADE, NOT NULL"

  }

  enum_g[GENDER_enum] {

    _ male

    _ female

    _ other

  }

  persons {

    VARCHAR(50) id PK

    TEXT first_name "NOT NULL"

    TEXT last_name "NOT NULL"

    TEXT biography

    DATE birth_date

    GENDER_enum gender "NOT NULL"

    VARCHAR(50) nationality FK "countries ON DELETE RESTRICT, NOT NULL"

    VARCHAR(50) photo FK "files ON DELETE SET NULL"

  }

  persons }|..|| enum_g : has

  person_images {

    VARCHAR(50) id PK

    VARCHAR(50) person_id FK "persons ON DELETE CASCADE, NOT NULL"

    VARCHAR(50) file_id FK "files ON DELETE CASCADE, NOT NULL"

  }

  countries {

    VARCHAR(50) id PK

    VARCHAR(3) iso_3166_1 UK "NOT NULL"

    TEXT name "NOT NULL"

  }

  genres {

    VARCHAR(50) id PK

    TEXT name "NOT NULL"

  }

```