Hi,

> I am really hoping someone can just
> post a simple example of the SQL they use to create a simple foreign key.

--------------------
CREATE TABLE CUSTOMER
(
ID INTEGER NOT NULL CONSTRAINT PK_CUSTOMER PRIMARY KEY,
FULLNAME VARCHAR(35)
);

CREATE TABLE INVOICE
(
ID INTEGER NOT NULL CONSTRAINT PK_INVOICE PRIMARY KEY,
CUSTOMER_ID INTEGER CONSTRAINT FK_INVOICE_CUSTOMER REFERENCES
CUSTOMER(ID),
CALCTOTAL NUMERIC(12,3),
DESCRIPTION VARCHAR(50)
);

--------------------
or
--------------------
CREATE TABLE CUSTOMER
(
ID INTEGER NOT NULL,
FULLNAME VARCHAR(35)
);

ALTER TABLE CUSTOMER ADD CONSTRAINT PK_CUSTOMER PRIMARY KEY (ID);

CREATE TABLE INVOICE
(
ID INTEGER NOT NULL,
CUSTOMER_ID INTEGER,
CALCTOTAL NUMERIC(12,3),
DESCRIPTION VARCHAR(50)
);

ALTER TABLE INVOICE ADD CONSTRAINT PK_INVOICE PRIMARY KEY (ID);
ALTER TABLE INVOICE ADD CONSTRAINT FK_INVOICE_CUSTOMER FOREIGN KEY
(CUSTOMER_ID) REFERENCES CUSTOMER(ID);

--------------------

I would advice you to read an SQL-learning book.

Regards,
Arno