What is difference between DELETE and DROP

Answer 1

delete = deletes records
drop = "deletes" the whole table/database

So e.g:
- you want to delete all records from a table but the table STILL EXISTS : DELETE FROM my_table;
- you want to delete/drop the whole table nit just the data in it, the table DOES NOT EXIST anymore: drob my_table;

Answer 2

Delete: The DELETE command is used to remove rows from a table. A WHERE clause can be used to only remove some rows. If no WHERE condition is specified, all rows will be removed. After performing a DELETE operation you need to COMMIT or ROLLBACK the transaction to make the change permanent or to undo it. Note that this operation will cause all DELETE triggers on the table to fire.

Drop: The DROP command removes a table from the database. All the tables' rows, indexes and privileges will also be removed. No DML triggers will be fired. The operation cannot be rolled back.