Which districts have at least two addresses?
SELECT district FROM address GROUP BY district HAVING count(*)  >=  2
SELECT district FROM address GROUP BY district HAVING count(*)  >=  2
[{'district': ''}, {'district': 'Abu Dhabi'}, {'district': 'Adana'}, {'district': 'Alberta'}, {'district': 'Andhra Pradesh'}, {'district': 'Bihar'}, {'district': 'Buenos Aires'}, {'district': 'California'}, {'district': 'Caraga'}, {'district': 'Central'}, {'district': 'Central Java'}, {'district': 'Central Luzon'}, {'district': 'Chihuahua'}, {'district': 'Coahuila de Zaragoza'}, {'district': 'Dhaka'}, {'district': 'Distrito Federal'}, {'district': 'East Java'}, {'district': 'England'}, {'district': 'Esfahan'}, {'district': 'Florida'}, {'district': 'Fukushima'}, {'district': 'Galicia'}, {'district': 'Gansu'}, {'district': 'Gauteng'}, {'district': 'Gelderland'}, {'district': 'Gois'}, {'district': 'Guanajuato'}, {'district': 'Guangdong'}, {'district': 'Gujarat'}, {'district': 'Ha Darom'}, {'district': 'Haryana'}, {'district': 'Heilongjiang'}, {'district': 'Henan'}, {'district': 'Hidalgo'}, {'district': 'Hiroshima'}, {'district': 'Hubei'}, {'district': 'Hunan'}, {'district': 'Illinois'}, {'district': 'Inner Mongolia'}, {'district': 'Jalisco'}, {'district': 'Jharkhand'}, {'district': 'Jiangsu'}, {'district': 'Jilin'}, {'district': 'Kaduna'}, {'district': 'Kanagawa'}, {'district': 'Karnataka'}, {'district': 'Kerala'}, {'district': 'Khanh Hoa'}, {'district': 'Krasnojarsk'}, {'district': 'KwaZulu-Natal'}, {'district': 'Liaoning'}, {'district': 'Lipetsk'}, {'district': 'Lombardia'}, {'district': 'Madhya Pradesh'}, {'district': 'Maharashtra'}, {'district': 'Mekka'}, {'district': 'Michigan'}, {'district': 'Michoacn de Ocampo'}, {'district': 'Minas Gerais'}, {'district': 'Missouri'}, {'district': 'Morelos'}, {'district': 'Moskova'}, {'district': 'Mxico'}, {'district': 'Nantou'}, {'district': 'National Capital Reg'}, {'district': 'Nordrhein-Westfalen'}, {'district': 'North West'}, {'district': 'Northern Mindanao'}, {'district': 'Ohio'}, {'district': 'Okayama'}, {'district': 'Ondo & Ekiti'}, {'district': 'Ontario'}, {'district': 'Osaka'}, {'district': 'Oyo & Osun'}, {'district': 'Punjab'}, {'district': 'QLD'}, {'district': 'Rajasthan'}, {'district': 'Rio Grande do Sul'}, {'district': 'Risaralda'}, {'district': 'Saitama'}, {'district': 'Shandong'}, {'district': 'Shanxi'}, {'district': 'Sichuan'}, {'district': 'Sind'}, {'district': 'Slaskie'}, {'district': 'So Paulo'}, {'district': 'Southern Tagalog'}, {'district': 'Sucre'}, {'district': 'Sumy'}, {'district': 'Tahiti'}, {'district': 'Taipei'}, {'district': 'Tamil Nadu'}, {'district': 'Tatarstan'}, {'district': 'Tel Aviv'}, {'district': 'Tennessee'}, {'district': 'Texas'}, {'district': 'Tokyo-to'}, {'district': 'Uttar Pradesh'}, {'district': 'West Bengali'}, {'district': 'West Java'}, {'district': 'Xinxiang'}, {'district': 'Yamaguchi'}, {'district': 'Zhejiang'}, {'district': 'al-Qalyubiya'}, {'district': 'al-Sharqiya'}]