Merge Statement Example in Orcale

merge [ hints ] into table-name-1 | view-name-1 [ alias-1 ]
using table-name-2 | view-name-2 | subquery [ alias-2 ]
on ( condition )
[ merge-update-clause ] [ merge-insert-clause ] [ error-logging-clause ];
 

 create table table_dest (
  id number primary key,
  txt varchar2(20)
);

insert into table_dest values (1,'one');
insert into table_dest values (3,'three');
insert into table_dest values (5,'five');

commit;

create table table_source (
  id number primary key,
  txt varchar2(20)
);

Read More