Oracle merge constants into single table

Question

In Oracle, given a simple data table:

create table data (
    id       VARCHAR2(255),
    key      VARCHAR2(255),
    value    VARCHAR2(511));

Answer 1

I would hide the MERGE inside a PL/SQL API and then call that via JDBC:

data_pkg.merge_data ('someid', 'testKey', 'someValue');

As an alternative to MERGE, the API could do:

begin
   insert into data (...) values (...);
exception
   when dup_val_on_index then
      update data
      set ...
      where ...;
end;