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Setting up postgresql database\n\nMake a volume then a PostgreSQL database on docker\n\n```docker volume create VOLUME_NAME```\n```\ndocker run --name CONTAINER_NAME -e POSTGRES_PASSWORD=YOUR_PASSWORD -d -p 5431:5432 -v VOLUME_NAME:/var/lib/postgresql/data postgres\n```\nEnter into the database\n```\ndocker exec -it CONTAINER_NAME psql -U postgres\n```\nCreate a database and connect to it\n```\nCREATE DATABASE yourdbname;\n\\c yourdbname;\n```\nCreate the students table\n```\nCREATE TABLE students (\n    id SERIAL PRIMARY KEY,\n    name VARCHAR(255) NOT NULL,\n    password VARCHAR(255) NOT NULL,\n    role VARCHAR(50) NOT NULL,\n    email VARCHAR(255) UNIQUE NOT NULL,\n    academic_probation BOOLEAN DEFAULT FALSE,\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);\n```\nCreate the courses table\n```\nCREATE TABLE courses (\n    id SERIAL PRIMARY KEY,\n    course_name VARCHAR(255) NOT NULL,\n    description TEXT,\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);\n```\nCreate the enrollments table\n```\nCREATE TABLE enrollments (\n    student_id INTEGER NOT NULL,\n    course_id INTEGER NOT NULL,\n    enrollment_date DATE,\n    grade REAL,\n    PRIMARY KEY (student_id, course_id),\n    FOREIGN KEY (student_id) REFERENCES students (id),\n    FOREIGN KEY (course_id) REFERENCES courses (id),\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);\n```\nrun `\\dt` to see if all tables were created\n\nSet up .env file\n- The last part of JDBC_URL will be the database name\n- JDBC_USERNAME will be postgres\n\n```\nJDBC_URL=jdbc:postgresql://localhost:5431/XXXXXXX\nJDBC_USERNAME=XXXXXXX\nJDBC_PASSWORD=XXXXXXX\n```\nSet up `application.properties`:\n```\nspring.application.name=ManyToMany\nspring.datasource.url=${JDBC_URL}\nspring.datasource.username=${JDBC_USERNAME}\nspring.datasource.password=${JDBC_PASSWORD}\nspring.datasource.driver-class-name=org.postgresql.Driver\nspring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fprogrammersteve%2Fjavaspringbootmanytomanyexample","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fprogrammersteve%2Fjavaspringbootmanytomanyexample","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fprogrammersteve%2Fjavaspringbootmanytomanyexample/lists"}