Question

I have problem with this query:

  MERGE INTO qot
  USING dual
  ON (qot_id = 1023125885)
  WHEN MATCHED AND qot_exc_id = 4 THEN UPDATE SET qot_exc_id = 259
  WHEN MATCHED AND qot_exc_id = 6 THEN UPDATE SET qot_exc_id = 131;

I’m getting an error: ‘Missing keyword’.
Could someone give me any clue?

Thank you!

Greetings,

r.

Answer 1

I don’t know why you are trying to use MERGE when you only want to update, never insert. You cannot add conditions into the WHEN clause like you are doing – see documentation.

Why not just do this:

update qot
set qot_exc_id = case qot_exc_id
                    when 4 then 259
                    when 6 then 131
                    end
where qot_id = 1023125885
and qot_exc_id in (4,6);

If you really need a MERGE then you want something like:

MERGE INTO qot
USING dual
ON (qot_id = 1023125885)
WHEN MATCHED THEN 
  UPDATE SET qot_exc_id = case qot_exc_id
                            when 4 then 259
                            when 6 then 131
                            else qot_exc_id
                            end;

or perhaps:

MERGE INTO qot
USING dual
ON (qot_id = 1023125885 and qot_exc_id in (4,6))
WHEN MATCHED THEN 
  UPDATE SET qot_exc_id = case qot_exc_id
                            when 4 then 259
                            when 6 then 131
                            end;