Creating a trigger that pulls information from another table in phpMyAdmin - mysql

Question

I am trying to create a fairly complicated Trigger and I'm not sure if it can be done on phpMyAdmin.
Right now I have this query that creates a table with all the information I need from it.
CREATE TABLE SeniorDB_Shipping
SELECT
SeniorDB_Invoice.ID_Order,
SeniorDB_Customer.MCT_Code,
SeniorDB_Customer.Customer_Name,
SeniorDB_Customer.Customer_Address,
SeniorDB_Customer.Customer_City,
SeniorDB_Customer.Customer_State,
SeniorDB_Invoice.Shipping_Company
FROM SeniorDB_Customer
Join SeniorDB_Invoice ON SeniorDB_Customer.MCT_Code = SeniorDB_Invoice.MCT_Code
As you can see in the image, when I run the query, it pulls in information from the tables above the information. I'm trying (and failing) to create a trigger that will do this same thing without having to create a brand new table every single time. All the other posts I have seen are similar in regards to creating a table instead of inserting to a table.
What the trigger does is, when I enter the ID_Order, the rest of the information will get pulled from the database.
This is the trigger I have so far:
delimiter ~
create trigger SeniorDB_Shipping before insert on SeniorDB_Shipping
for each row begin
set new.SeniorDB_Shipping.MCT_Code = new.SeniorDB_Customer.MCT_Code,;
set new.SeniorDB_Shipping.Customer_Name = new.SeniorDB_Customer.Customer_Name,;
set new.SeniorDB_Shipping.Customer_Address = new.SeniorDB_Customer.Customer_Address,;
set new.SeniorDB_Shipping.Customer_City = new.SeniorDB_Customer.Customer_City,;
set new.SeniorDB_Shipping.Customer_State = new.SeniorDB_Customer.Customer_State,;
set new.SeniorDB_Shipping.Shipping_Company = new.SeniorDB_Customer.Shipping_Company,;
end~
delimiter ;
I feel like I'm right there. I just can't link it to when I enter the ID_Order.
This is the page if you would like to see the databases: http://polonium.forest.usf.edu/~sngamwon/SeniorProject/SeniorDB_Order.php

Answer 1

Ok, so you'll need to run this once:
/* Create the table with a primary key */
create table `SeniorDB_Shipping` (
`id` INT unsigned AUTO_INCREMENT NOT NULL,
primary key(id),
`ID_Order` int NOT NULL,
`MCT_Code` int NOT NULL,
`Customer_Name` varchar(255) NOT NULL,
`Customer_Address` varchar(255) NOT NULL,
`Customer_City` varchar(255) NOT NULL,
`Customer_State` varchar(255) NOT NULL,
`Shipping_Company` varchar(255) NOT NULL
) ENGINE=MyISAM CHARACTER SET=utf8 COLLATE utf8_general_ci;
Then you can run
/* Insert statement */
INSERT INTO `SeniorDB_Shipping` (
`ID_Order`,
`MCT_Code`,
`Customer_Name`,
`Customer_Address`,
`Customer_City`,
`Customer_State`,
`Shipping_Company`
) SELECT
invoice.ID_Order,
customer.MCT_Code,
customer.Customer_Name,
customer.Customer_Address,
customer.Customer_City,
customer.Customer_State,
invoice.Shipping_Company
FROM
SeniorDB_Customer as customer
Join SeniorDB_Invoice as invoice
ON customer.MCT_Code = invoice.MCT_Code;
I've run this in my own PHPMyAdmin, so it works. But I obviously don't have your schema. Known issues:
This will populate SeniorDB_Shipping with ALL the data from your two tables each time. Modify the query as required to select only recent data if that's not what you want. If ID_Order is a primary key you could check that doesn't already exist.