Question

can someone say me how can i copy some rows like this:

copy field name from id 1-10 to the id with 31-40

example:

1 foo
...
31 bla

after that it should be:

1 foo
...
31 foo

Answer 1

Something like this..

UPDATE tablename    
SET fieldname = ( SELECT tablename.fieldname
FROM tablename t2
WHERE t2.id = (tablename.id-30))

WHERE tablename.id BETWEEN 31 AND 40;