create database link JTKHJFDB connect to khjf identified by hello using '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.196.57.197)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = JTKHJFDB) ) )' ; select party_id,realname from tbl_person ; select * from t_customer@JTKHJFDB ; delete from t_customer@JTKHJFDB create synonym remote_seq for PK_SEQ@JTKHJFDB; insert into t_customer@JTKHJFDB(ID, uuid,name) select remote_seq.nextval, to_char(party_id),realname from tbl_person; Drop DATABASE LINK JTKHJFDB;