UPDATE devicenumplanmap 
SET devicenumplanmap.e164mask = '+1' 
FROM devicenumplanmap 
WHERE (select devicenumplanmap.pkid, devicenumplanmap.e164mask 
       from devicenumplanmap, device 
       where devicenumplanmap.fkdevice = device.pkid 
         and device.name like '%RDP' 
         and devicenumplanmap.e164mask like '819%')
A syntax error has occurred.
We want to update the table devicenumplanmap from a search in another table.
 
     
     
     
    