MySQL support an INSERT statement that inserts multiple rows, as noted
here. However, since the Database Insert VI doesn't support this you will need to code this up yourself. I'm guessing you're using the Database Connectivity Toolkit. I don't have the Database Connectivity Toolkit, but ff there's a VI in there that will let you create your own INSERT statement then you could do it. There may be one that allows you to specify a command. In that case, the command would be the INSERT statement. I know you can create your own command with
LabSQL.