xmkuke的专栏

全球城市列表（人口大于5000的城市） 文件是CSV格式，总记录数近5万条，可使用EXCEL打开 文档没有字段名， 字段名如下， 字段分隔使用\t(制表符) geonameid : integer id of record in geonames database name : name of geographical point (utf8) varchar(200) asciiname : name of geographical point in plain ascii characters, varchar(200) alternatenames : alternatenames, comma separated, ascii names automatically transliterated, convenience attribute from alternatename table, varchar(10000) latitude : latitude in decimal degrees (wgs84) longitude : longitude in decimal degrees (wgs84) feature class : see http://www.geonames.org/export/codes.html, char(1) feature code : see http://www.geonames.org/export/codes.html, varchar(10) country code : ISO-3166 2-letter country code, 2 characters cc2 : alternate country codes, comma separated, ISO-3166 2-letter country code, 200 characters admin1 code : fipscode (subject to change to iso code), see exceptions below, see file admin1Codes.txt for display names of this code; varchar(20) admin2 code : code for the second administrative division, a county in the US, see file admin2Codes.txt; varchar(80) admin3 code : code for third level administrative division, varchar(20) admin4 code : code for fourth level administrative division, varchar(20) population : bigint (8 byte int) elevation : in meters, integer dem : digital elevation model, srtm3 or gtopo30, average elevation of 3''x3'' (ca 90mx90m) or 30''x30'' (ca 900mx900m) area in meters, integer. srtm processed by cgiar/ciat. timezone : the iana timezone id (see file timeZone.txt) varchar(40) modification date : date of last modification in yyyy-MM-dd format