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  • mysql 获取 汉字字段首字母(转)

    第一种:

    select name, 
    CHAR(INTERVAL(CONV(HEX(left(CONVERT(name USING GBK),1)),16,10),
    0xB0A1,0xB0C5,0xB2C1,0xB4EE,0xB6EA,0xB7A2,0xB8C1,0xB9FE,
    0xBBF7,0xBBF7,0xBFA6,0xC0AC,0xC2E8,0xC4C3,0xC5B6,0xC5BE,
    0xC6DA,0xC8BB,0xC8F6,0xCBFA,0xCDDA,0xCDDA,0xCDDA,0xCEF4,
    0xD1B9,0xD4D1) + 64) as PY
    from table

    第二种:

    select name,
     ELT(INTERVAL(CONV(HEX(left(CONVERT(name 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') as PY 
     from table

    备注:

    1> 第一种方法似乎需要mysql 5.1版本。

    1> mysql中文一般都是utf-8编码,上述16进制为GBK编码范围,因此需要转换编码:convert(name using GBK)

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  • 原文地址:https://www.cnblogs.com/xuedong09/p/3120513.html
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