CREATE TABLE T1 (
 ID                          INTEGER NOT NULL,
 SOME_STRING_FIELD VARCHAR(25));
ALTER TABLE T1
 ADD CONSTRAINT PK_T1 PRIMARY KEY (ID);

CREATE TABLE T2 (
   ID                        INTEGER NOT NULL,
   T1_ID                   INTEGER,
   SOMESTRINGFIELD  VARCHAR(25));
ALTER TABLE T2
 ADD CONSTRAINT PK_T2 PRIMARY KEY (ID);
ALTER TABLE T2
 ADD CONSTRAINT FK_T2_1 FOREIGN KEY (T1_ID) REFERENCES T1 (ID);