The first issue is the initial select doesn't have a from clause. While is valid in SQL Server, it's not in Oracle. You always have to specify a from clause. We only want the query to return one row, so we can put dual to good use: with cte as (. select dateadd(mm, -1, convert(date, getdate())) as dt.
Place six pizza rolls on microwavable plate. Space rolls one inch apart. Place plate in microwave. Cook 55 seconds on high. If more time is needed, turn the plate around and cook for 10 additional seconds.
Place the tops of the rolls onto the sandwiches. Pour the mustard mixture evenly over the rolls. Bake in the preheated oven until the rolls are lightly browned and the cheese has melted, about 20 minutes. Slice into individual rolls through the ham and cheese layers to serve.