I've tried searching this topic, and my searches led me to this format, which is still throwing an error. When I execute my script, I basically get a load of ORA-01735 errors for all my later statements. I had it done out differently, but googling led me to this format, which still doesn't work. Any tips?

```
CREATE TABLE table7
(
column1 int NOT NULL,
column2 int NOT NULL,
column3 int NOT NULL
)
/

ALTER TABLE table7

ADD(    pk1 PRIMARY KEY(column1),
    fk1 FOREIGN KEY(column2) REFERENCES Table1(column2),
    fk2 FOREIGN KEY(column3) REFERENCES Service(column3)
)
/

```