To insert multiple rows, you'll need to loop through your data and do consequtive inserts with a <cfquery> tag. I would recommend reading up on the <cfloop> tag as this should do what you need.
To do multiple deletes, you can just do a standard delete and set your criteria to match whatever rows you want to delete. Here's an example:
<cfquery ...>
delete from table1 where idNum > 1 and idNum < 10
</cfquery>
This would delete all rows where the idNum is between 1 and 10.
Hope this helps,
GJ