Creating an entity
As you've progressed from the conceptual to the logical stages of data modeling, you've learned to define the structures representing real-world entities and their connections. Now, it's time to put the knowledge into practice.
In the e-commerce system, logical model included three essential tables: customers, products, and orders. These tables are designed to mirror the real interactions within a business context: customers generate orders, and orders contain products. Previously, you learned to create products, now it is time to define the customers table.
Diese Übung ist Teil des Kurses
Introduction to Data Modeling in Snowflake
Anleitung zur Übung
- Create or replace, if it already exists, the
customerstable. - Assign
customerid, with a numerical data type, no decimals, 38 digits long, as the unique identifier of the customer's records.
Interaktive Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
-- Create customers table
___ (
-- Define unique identifier
___,
country VARCHAR(255)
);