From a9fab0c8789f2317e8fd87d0b89a87f10d6a0e06 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=96=D1=83=D0=BB=D1=8C=20=D0=9A=D0=B8=D1=80=D0=B8=D0=BB?=
 =?UTF-8?q?=D0=BB?= <118897479+KirillZhul@users.noreply.github.com>
Date: Sun, 28 May 2023 13:08:46 +0300
Subject: [PATCH] Create datamart_ddl.sql
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DDL-запрос на создание витрины данных.
---
 datamart_ddl.sql | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 datamart_ddl.sql

diff --git a/datamart_ddl.sql b/datamart_ddl.sql
new file mode 100644
index 0000000..4a0e6e6
--- /dev/null
+++ b/datamart_ddl.sql
@@ -0,0 +1,6 @@
+CREATE TABLE analysis.dm_rfm_segments (user_id int PRIMARY KEY,
+recency int CHECK(recency > 0 AND recency <= 5),
+frequency int CHECK(frequency > 0 AND recency <= 5),
+monetary_value int CHECK(monetary_value > 0 AND monetary_value <= 5))
+
+ALTER TABLE analysis.dm_rfm_segments ADD CONSTRAINT dm_rfm_segments_user_id_fkey FOREIGN KEY (user_id) REFERENCES production.users(id);