text: TRUNCATE TABLE events;
  LOAD DATA LOCAL INFILE 'bd_lab_small_sample.csv'
  INTO TABLE events
  CHARACTER SET 'utf8'
  FIELDS TERMINATED BY ','
  ENCLOSED BY ''
  LINES TERMINATED BY '\n'
  IGNORE 1 LINES
  (
  	hash_number_A,
  	hash_tariff,
  	event,
  	event_sub,
  	network_service_direction,
  	@event_start,
  	hash_b_number,
  	number_B_category,
  	cost,
  	call_duration_minutes,
  	data_volume_mb,
  	hash_accum_code,
  	LAT,
  	LON,
  	device_type,
  	phone_price_category,
  	interest_1,
  	interest_2,
  	interest_3,
  	interest_4,
  	interest_5,
  	test_flag,
  	target
  )
  SET
  	event_start_date = STR_TO_DATE(@event_start, '%d%b%y:%T')
  ;
  
  