while i am trying to execute the following query it shows error. i need to create such type relation between 3 table. here i am showing example. this also show error.
Code:
create table tbl1(
	id1	number primary key,
	name1	varchar2(10)
);

create table tbl2(
	id2	number,
	name2	varchar2(10) primary key);

create table tbl3(
	id3	number,
	name3	varchar2(10),
...