UPDATE Klienti SET Pilseta = "Kraslavas novads" WHERE Pilseta = "Kraslava"
If you had a lookup table for Pilseta data and instead save key value, then would only have to edit the Kraslavas record in lookup table.
How to attach file: http://www.accessforums.net/showthread.php?t=70301 To provide db: copy, remove confidential data, run compact & repair, zip w/Windows Compression.