sql 根据城市名称获取拼音首字母并添加到列

UPDATE tp_admin_city SET tp_admin_city.description =ELT(INTERVAL(CONV(HEX(LEFT(CONVERT(tp_admin_city.`cname` USING gbk),1)),16,10),0xB0A1,0xB0C5,0xB2C1,0xB4EE,0xB6EA,0xB7A2,0xB8C1,0xB9FE,0xBBF7,0xBFA6,0xC0AC

,0xC2E8,0xC4C3,0xC5B6,0xC5BE,0xC6DA,0xC8BB,0xC8F6,0xCBFA,0xCDDA ,0xCEF4,0xD1B9,0xD4D1),

'A','B','C','D','E','F','G','H','J','K','L','M','N','O','P','Q','R','S','T','W','X','Y','Z')

tp_admin_city 数据表，tp_admin_city.description 字段 注意，并不是很准确，遇到多音字，如重庆。