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homework/mnoskov/greenplum/Пет проект: DWH/Step_1_project_Initialization.sql
T

46 lines
858 B
SQL

-- 1
CREATE SCHEMA raw;
CREATE SCHEMA core;
CREATE SCHEMA dm;
-- 2
--DROP TABLE IF EXISTS raw.users;
CREATE TABLE raw.users (
id bigint NOT NULL,
name varchar(100),
age SMALLINT,
email varchar(100),
registration_date timestamptz
);
--DROP TABLE IF EXISTS raw.courses;
CREATE TABLE raw.courses (
id bigint NOT NULL,
title varchar(150),
category varchar(50),
created_at timestamptz
);
--DROP TABLE IF EXISTS raw.lessons;
CREATE TABLE raw.lessons (
id bigint NOT NULL,
course_id bigint,
title varchar(150),
duration_min SMALLINT
);
--DROP TABLE IF EXISTS raw.enrollments;
CREATE TABLE raw.enrollments (
id bigint NOT NULL,
user_id bigint,
course_id bigint,
enrolled_at timestamptz
);
--DROP TABLE IF EXISTS raw.lesson_views;
CREATE TABLE raw.lesson_views (
id bigint NOT NULL,
user_id bigint,
lesson_id bigint,
viewed_at timestamptz
);