const sqlu = 'update tempcsvuploaddss t, temp2 t2
set t.matchartist = t2.artist,
t.matchtrack=t2.track
where t2.IsFound = "Y"
and t.matchartist is null
and t.matchtrack is null ';
Query(sqlu);
Now result looks like this:
only one record is updated in all rows how to i can update all records