Which SQL command permanently removes a table's entire structure along with all of its data from the database?

The DROP command is a DDL (Data Definition Language) statement that permanently deletes a table's structure, its data, and its associated schema objects (such as indexes and constraints) from the database. DELETE is a DML statement that removes rows (optionally filtered with a WHERE clause) but keeps the table structure intact. TRUNCATE quickly removes all rows and resets identity counters, but also preserves the table structure. REMOVE is not a standard SQL command, and ALTER modifies a table's structure (e.g., adding or dropping columns) without deleting the table itself.