title: How to refresh a MySQL table without website interruption?
body: <p>Once a day I need to update an MySQL table with a new file downloaded from the Net using ftp and then mysqlimport. However, I want my website to keep running smoothly during the mysqlimport operation, which takes quite some time (it's a big table). 
  What would be a good way to assure that users do not wait for the import to finish? 
  I am thinking of importing to a temporary table and then renaming it. Is that a good plan?</p>