CREATE TABLE OWN1.E_1
(
	e1_id		  CHAR(18)  NOT NULL ,
	e1_f1		  CHAR(18)  NULL 
);



CREATE UNIQUE INDEX NS1.XPKE_1 ON OWN1.E_1
(e1_id  ASC);



ALTER TABLE OWN1.E_1
	ADD CONSTRAINT  XPKE_1 PRIMARY KEY (e1_id);



CREATE TABLE OWN1.E_2
(
	e2_id		  CHAR(18)  NOT NULL ,
	e2_f1		  CHAR(18)  NULL 
);



CREATE UNIQUE INDEX XPKE_2 ON OWN1.E_2
(e2_id  ASC);



ALTER TABLE OWN1.E_2
	ADD CONSTRAINT  XPKE_2 PRIMARY KEY (e2_id);