Flutter Supabase - 连接表

Question

I have 2 tables

1. Department(id, department_name)
2. Programs(id, program_name, department_id)

dept_id in Programs is the foreign key from Department table

I want to join department_id in Program table and id in Department table I'm unable to do it in Flutter supabase supabase_flutter: ^0.2.12 . Please help me out Thanks

Edit: I want to perform this action from the front end. (Flutter)

CREATE TABLE Departments (
  id INTEGER PRIMARY KEY,
  name TEXT NOT NULL
);

CREATE TABLE Programs (
  id INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  dept_id INTEGER,
  FOREIGN KEY (dept_id) references Departments(id)
);

INSERT INTO Departments VALUES (1, 'DEPT_A');
INSERT INTO Departments VALUES (2, 'DEPT_B');
INSERT INTO Programs VALUES (1, 'PROG_A', 1);
INSERT INTO Programs VALUES (2, 'PROG_B', 1);
INSERT INTO Programs VALUES (3, 'PROG_C', 2);
INSERT INTO Programs VALUES (4, 'PROG_D', 2);

SELECT Departments.name, Departments.id, Programs.name, Programs.id
FROM Departments 
INNER JOIN Programs
ON Departments.id = Programs.dept_id;

Answer 1

you can set up a foreign key relation in supabase from within your table editor by pressing edit on the column you want to add one to.

Answer 2

If your database has relationships, you can query related tables too.

final res = await supabase
  .from('countries')
  .select('''
    name,
    cities (
      name
    )
  ''')
  .execute();

This is directly from the docs: Supabase Dart Docs