This is how you can get started.

Create the database:

createdb BookStore

psql BookStore

copy/paste this stuff in:

CREATE TABLE BSAUTHOR (FNAME varchar(30), LNAME varchar(30), PID integer NOT NULL);
CREATE TABLE BSBOOK (FK_AUTHOR integer, PID integer NOT NULL, TITLE varchar(30));
CREATE TABLE BSCUSTOMER (FNAME varchar(30), LNAME varchar(30), PID integer NOT NULL);
CREATE TABLE BSORDER (FK_CUSTOMER integer, PID integer NOT NULL);
CREATE TABLE BSORDERPOS (FK_ORDER integer, PID integer NOT NULL);
CREATE SEQUENCE BSAUTHOR_SEQ;
CREATE SEQUENCE BSBOOK_SEQ;
CREATE SEQUENCE BSCUSTOMER_SEQ;
CREATE SEQUENCE BSORDER_SEQ;
CREATE SEQUENCE BSORDERPOS_SEQ;
ALTER TABLE BSAUTHOR ADD PRIMARY KEY (PID);
ALTER TABLE BSBOOK ADD PRIMARY KEY (PID);
ALTER TABLE BSCUSTOMER ADD PRIMARY KEY (PID);
ALTER TABLE BSORDER ADD PRIMARY KEY (PID);
ALTER TABLE BSORDERPOS ADD PRIMARY KEY (PID);
ALTER TABLE BSBOOK ADD CONSTRAINT BSBOOK_author_FK FOREIGN KEY (FK_AUTHOR) REFERENCES BSAUTHOR (PID) DEFERRABLE INITIALLY DEFERRED;
ALTER TABLE BSORDER ADD CONSTRAINT BSORDER_customer_FK FOREIGN KEY (FK_CUSTOMER) REFERENCES BSCUSTOMER (PID) DEFERRABLE INITIALLY DEFERRED;

%----------------------

check what we created:

BookStore=# \d
             List of relations
 Schema |      Name      |   Type   | Owner 
--------+----------------+----------+-------
 public | bsauthor       | table    | dave
 public | bsauthor_seq   | sequence | dave
 public | bsbook         | table    | dave
 public | bsbook_seq     | sequence | dave
 public | bscustomer     | table    | dave
 public | bscustomer_seq | sequence | dave
 public | bsorder        | table    | dave
 public | bsorder_seq    | sequence | dave
 public | bsorderpos     | table    | dave
 public | bsorderpos_seq | sequence | dave
(10 rows)

check .../pgsql/data/pg_hba.conf
The machine running your program should be able to access your database.
This works for me:

host    all         all         172.16.112.1/32          password
(you might have to change the IP)

if needed make pgsql load the new config.

adjust the connection dictionary in BookStore.eomodeld/index.eomodeld

Especially these fields. You can use any text editor or the EOModelEditor.

	databaseServer = hostname;
	password = pw;
	userName = dave;