Create views from tables with different number of columns mysql - mysql

Question

I'm new to views in MySQL server.
I'm trying to create two VIEWS with "invoice_head" and "invoice_body", but in order to do that i need to get different keys from different tables (this tables have diferent number of columns).
This is the code that i'm trying to use:
CREATE VIEW invoice_head AS
SELECT
date_order AS 'DATE OF ISSUE'
FROM orders
UNION ALL
SELECT
customer_name AS 'Client Name',
customer_address AS 'Street adress',
customer_district AS 'District',
customer_country AS 'Portugal',
customer_zipcode AS 'ZIP Code'
FROM customer;
but this code is giving me the error: The used SELECT statements have different number of columns.
And the tables i'm using are something like this (for example)
Customer Table (8 columns)
customer_id
customer_name
customer_address
customer_district
(...)
1
maria xxx
street xxx
lisbon
(...)
Orders Table (9 columns)
order_id
customer_id
product_id
date_order
(...)
10
1
20
2020-12-15
(...)
The invoice_head is supposed to have information about the customer, the invoice_id, and the date of the order (invoice_date aka date_order).
Can someone tell me in what way is this possible to be made?
Is it impossible to do or I need to do something I'm not seeing?

Answer 1

Someone in the comments helped me. I just needed to use the "Join" instead of "Select":
DROP VIEW IF EXISTS `invoice_head`;
CREATE VIEW `invoice_head` AS
SELECT date_order as `Date of issue`,
customer_name AS `Client Name`,
customer_address AS `Street adress`,
customer_district AS `District`,
customer_country AS `Country`,
customer_zipcode AS `ZIP Code`
FROM orders
join customer
on orders.customer_id = customer.customer_id;