Ah, you mean that you imported a dumped file into the database and not all rows were added? This is done with the command "mysql", which is why I was confused.
You could probably use the following command to import the file again:
code:
mysql -f database < backup-file.sql
The flag -f tells the mysql command to continue on errors, which means it should import the missing rows. You would get errors for each row that already is in the database though, but that shouldn't matter.
I haven't tried this though, so you are doing at your own risk. Make a new backup of your database first before you try anything.