-CREATE TABLE reference_types (
- reference_type_id integer NOT NULL generated by default as identity (start with 100, increment by 1, no cache),
- type_label varchar(50) default NULL,
- abbreviation varchar(50) default NULL,
- description varchar(50) default NULL,
- PRIMARY KEY (reference_type_id)
-);
-
-CREATE TABLE reference_codes (
- reference_type_id integer,
- reference_code integer NOT NULL,
- code_label varchar(50) default NULL,
- abbreviation varchar(50) default NULL,
- description varchar(50) default NULL,
- PRIMARY KEY (reference_type_id,reference_code)
-);
-
-CREATE TABLE products (
- id integer NOT NULL,
- name varchar(50) default NULL,
- PRIMARY KEY (id)
-);
-
-CREATE TABLE tariffs (
- tariff_id integer NOT NULL,
- start_date date NOT NULL,
- amount integer default NULL,
- PRIMARY KEY (tariff_id,start_date)
-);
-
-CREATE TABLE product_tariffs (
- product_id integer NOT NULL,
- tariff_id integer NOT NULL,
- tariff_start_date date NOT NULL,
- PRIMARY KEY (product_id,tariff_id,tariff_start_date)
-);
-
-CREATE TABLE suburbs (
- city_id integer NOT NULL,
- suburb_id integer NOT NULL,
- name varchar(50) NOT NULL,
- PRIMARY KEY (city_id,suburb_id)
-);
-
-CREATE TABLE streets (
- id integer NOT NULL ,
- city_id integer NOT NULL,
- suburb_id integer NOT NULL,
- name varchar(50) NOT NULL,
- PRIMARY KEY (id)
-);
-
-CREATE TABLE users (
- id integer NOT NULL ,
- name varchar(50) NOT NULL,
- PRIMARY KEY (id)
-);
-
-CREATE TABLE articles (
- id integer NOT NULL ,
- name varchar(50) NOT NULL,
- PRIMARY KEY (id)
-);
-
-CREATE TABLE readings (
- id integer NOT NULL ,
- user_id integer NOT NULL,
- article_id integer NOT NULL,
- rating integer NOT NULL,
- PRIMARY KEY (id)
-);
-
-CREATE TABLE groups (
- id integer NOT NULL ,
- name varchar(50) NOT NULL,
- PRIMARY KEY (id)
-);
-
-CREATE TABLE memberships (
- user_id integer NOT NULL,
- group_id integer NOT NULL,
- PRIMARY KEY (user_id,group_id)
-);
-
-CREATE TABLE membership_statuses (
- id integer NOT NULL ,
- user_id integer NOT NULL,
- group_id integer NOT NULL,
- status varchar(50) NOT NULL,
- PRIMARY KEY (id)
-);
-
-create table kitchen_sinks (
- id_1 integer not null,
- id_2 integer not null,
- a_date date,
- a_string varchar(100),
- primary key (id_1, id_2)
-);
-
-create table restaurants (
- franchise_id integer not null,
- store_id integer not null,
- name varchar(100),
- primary key (franchise_id, store_id)
-);
-
-create table restaurants_suburbs (
- franchise_id integer not null,
- store_id integer not null,
- city_id integer not null,
- suburb_id integer not null
-);