title: How to Insert Data into REF linked Tables in Oracle sql
body: <p>Here my types and tables,</p>
  
  <pre><code>create type Customer_t as object(
     cid char(6),
     cusname varchar(15),
     birthdate date,
     phone char(10),
     address varchar(50)
  );
  
  create type claim_t as object(
     claimno char(12),
     cdate date,
     amount number(8,2),
     claimant ref customer_t
  );
  
  create type Claim_ntab is table of claim_t;
  
  create type policy_t as object(
      pid char(7),      
      sdate date,
      edate date,
      inscar ref car_t,
      premium number(6,2),
      claims claim_ntab
  );
  
  create table Policies of policy_t(
  pid primary key,
  inscar references Cars
  )nested table claims store as  claims_ntable;
  </code></pre>
  
  <p>How to insert data into Policies table?</p>