Object Reference Column « Object Oriented « Oracle PL/SQL Tutorial

32.8.Object Reference Column
32.8.1.Object References and Object Identifiers
32.8.2.CREATE a Table that References Our Row Objects
32.8.3.Inserting a Row into the Object Reference table
32.8.4.You can access this object identifier using the REF() function and store the returned objectifier in a REF column.
32.8.5.Selecting a Row from the Object reference table
32.8.6.You can access the rows in the object tables that are pointed to by REF column values using t REF() function; this function accepts a REF column as a parameter.
32.8.7.Updating a Row in the object reference table
32.8.8.Reference column