Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Table Design - Restaurants / Category / Line item
Designing an SQL Database System example from a Well House Consultants training course
More on Designing an SQL Database System [link]

This example is described in the following article(s):
   • Planning! - [link]

Source code: sql Module: S154
# Database design / test for "Don't cook , get it Delivered!"
# Methodology - test out table design / fields needed

drop database if exists orders;
create database orders;
use orders;

# a) Restaurants

create table restaurant (
        rid int primary key not null auto_increment,
        r_name text,
        r_street text,
        r_town text,
        r_pc text,
        r_phone text,
        r_website text,
        r_webdirectory text,
        r_o_email text,
        r_a_email text,
        r_rtid int

insert into restaurant (rid,r_name,r_street,r_town,r_pc,
        (1,"The Spotted Dick","4 Bold Street","Newport",
        "NP19 4OU","01633 665511","http://www.dick.gov.uk",
        (2,"The Refa","Market Place","Melksham","SN12 7GG",
        "01225 706580","http://www.puffdragon.co.uk",
        (3,"The Sultan","43 Bath Road","Melksham","SN12 4RE",
        "01225 665544","http://www.sultangrub.co.uk",

create table restaurant_type (
        rtid int primary key not null auto_increment,
        rt_name text

insert into restaurant_type ( rtid, rt_name) values
        (101, "Pudderies"),
        (102, "Indian"),
        (103, "Chinese"),
        (104, "Juice bar");

# b) Categories within restaurants

create table category (
        cid int primary key not null auto_increment,
        c_name text ,
        c_rid int,
        c_sortval int

insert into category (cid, c_name, c_rid, c_sortval)
        (201, "Starters", 2, 1),
        (202, "Chef Specials", 2, 2),
        (203, "Rices", 2, 4),
        (204, "Mains", 2, 3),
        (205, "Veggies", 2, 5),
        (206, "Appetisers", 3, 1),
        (207, "Currys", 3, 2),
        (208, "Rices", 3, 4),
        (209, "Baltis", 3, 3),
        (210, "Veggies", 3, 5),
        (215, "Desserts", 1, 1),
        (216, "Toppings", 1, 3);

# c) Products withing categories

create table product (
        pid int primary key not null auto_increment,
        p_name text ,
        p_desc text ,
        p_cid int,
        p_price int,
        p_sortval int,
        p_veggie enum ('Y','N')

insert into product (pid, p_name, p_desc, p_cid,
        p_price, p_sortval, p_veggie) values
        (301, "Onion Bhajee", "Deep fried battered onion bits",
                 201, 295, 2, 'Y'),
        (302, "Cow Caches", "Chunks of cow in pastry",
                201, 445, 1, 'N'),
        (303, "Prawn Balls", "Shellfish testes",
                201, 435, 3, 'N'),
        (304, "Onion Bhajee", "Onion rings soaked in coconut sauce",
                 206, 390, 2, 'Y');

select * from ((product join category on cid = p_cid)
        join restaurant on rid = c_rid)
        join restaurant_type on rtid = r_rtid
        where rid = 2
        order by rid, c_sortval, p_sortval;

# d) Options
create table optionz (
        oid int primary key not null auto_increment,
        o_name text


# e) Restautant Review
# create table r_review (
# int rrid primary key not null auto_increment,
# text rr_text
# );
# # f) Product Review
# create table p_review (
# int prid primary key not null auto_increment,
# text pr_text
# );
# # g) account info
# create table account (
# int aid primary key not null auto_increment,
# text a_name
# );
# # h) Transaction info
# create table transaction (
# int tid primary key not null auto_increment,
# );
# # i) Line items
# create table line (
# int lid primary key not null auto_increment,
# );
Learn about this subject
This module and example are covered on our public MySQL course. If you have a group of three or more trainees who need to learn the subject, we can also arrange a private or on site course for you.

Books covering this topic
Yes. We have over 700 books in our library. Books covering are listed here and when you've selected a relevant book we'll link you on to Amazon to order.

Other Examples
This example comes from our "Designing an SQL Database System" training module. You'll find a description of the topic and some other closely related examples on the "Designing an SQL Database System" module index page.

Full description of the source code
You can learn more about this example on the training courses listed on this page, on which you'll be given a full set of training notes.

Many other training modules are available for download (for limited use) from our download centre under an Open Training Notes License.

Other resources
• Our Solutions centre provides a number of longer technical articles.
• Our Opentalk forum archive provides a question and answer centre.
The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• And there's a global index here.

Web site author
This web site is written and maintained by Well House Consultants.

Purpose of this website
This is a sample program, class demonstration or answer from a training course. It's main purpose is to provide an after-course service to customers who have attended our public private or on site courses, but the examples are made generally available under conditions described below.

Conditions of use
Past attendees on our training courses are welcome to use individual examples in the course of their programming, but must check the examples they use to ensure that they are suitable for their job. Remember that some of our examples show you how not to do things - check in your notes. Well House Consultants take no responsibility for the suitability of these example programs to customer's needs.

This program is copyright Well House Consultants Ltd. You are forbidden from using it for running your own training courses without our prior written permission. See our page on courseware provision for more details.

Any of our images within this code may NOT be reused on a public URL without our prior permission. For Bona Fide personal use, we will often grant you permission provided that you provide a link back. Commercial use on a website will incur a license fee for each image used - details on request.

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2024: 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/resources/ex.php • PAGE BUILT: Sun Oct 11 14:50:09 2020 • BUILD SYSTEM: JelliaJamb