why use create table code example

Example: create table sql

# Simple table describing a vehicle

CREATE TABLE vehicle(
  	# vehicleId: Unique ID for Primary Key.
  	# This is how we will reference a record
	vehicleId INT NOT NULL,  
  	make VARCHAR(64), # String 64 chars max
  	model VARCHAR(128),
  	derivative VARCHAR(255),
  	PRIMARY KEY(vehicleId)
);

# Add a record
INSERT INTO vehicle VALUES(1000,'Volkswagen','Golf','1.5 TSI EVO Match Edition 5dr');