Hay, If you run a delete command on any table it will delete the data from the table. But the table will remain there. When you will run a select a query on the same table it will show the table with no rows. If you run a drop on the table it will drop the table from the database. And if you run a select on the table it will show you no table exist. Moreover, if you have run a delete on a table it can be rollbacked means you can get the data back. But of you run a drop, it can not be rollbacked.