MYSQL汉字的拼音首字母

MYSQL汉字的拼音首字母:

SELECT *,ELT(INTERVAL(CONV(HEX(left(WORD,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') as PY
from t_word;