SQL Oracle - Data transfer between relational and object tables -


i need solution data transfer between 2 tables in oracle database. source relational type , target object type of table. here example:

source table (existing data):

create table "history" (   "id" number,    "id_process" number,    "id_unit" number,    "pass_date" date default sysdate );  create unique index "history_pk" on "history" ("id"); alter table "history" add constraint "history_process_fk1"    foreign key ("id_process") references "process" ("id"); alter table "history" add constraint "history_process_fk2"    foreign key ("id_unit") references "units" ("id");

target table (empty):

create or replace type t_history object (   "id" number,    "id_process" ref t_process,    "id_unit" ref t_unit,    "pass_date" date );  create table o_history of t_history (   "id" primary key);

assuming you've created types , object tables process , unit values, can do:

insert o_history select t_history(h.id, ref(p), ref(u), h.pass_date) history h join o_process p on p.id_process = h.id_process join o_unit u on u.id_unit = h.id_unit;

this gets id , pass date history table, , gets references other tables matching values.

sql fiddle demo.


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