ALTER TABLE profiles
  ADD COLUMN whatsapp VARCHAR(80) NOT NULL DEFAULT '' AFTER phone;

INSERT INTO schema_migrations (version, checksum)
VALUES (
  '002_profile_whatsapp.sql',
  '5bd0e6e02b7f3ed1a606c8ee70af1a1030007df63cf0a73cc1bbc5582b680326'
)
ON DUPLICATE KEY UPDATE checksum = VALUES(checksum);