MYSQL 字段安装a-z排序，汉字，英文，特殊符号混排

DROP FUNCTION fristPinyin;
DELIMITER $$  
CREATE FUNCTION `fristPinyin`(P_NAME VARCHAR(255)) RETURNS varchar(255) CHARSET utf8    
DETERMINISTIC  
BEGIN   
    DECLARE V_RETURN VARCHAR(255);  
    DECLARE V_BOOL INT DEFAULT 0;
    DECLARE V_SPEC INT DEFAULT 0;
    DECLARE FIRST_VARCHAR VARCHAR(1);  
   
    SET FIRST_VARCHAR = left(CONVERT(P_NAME USING gbk),1);  
    SELECT FIRST_VARCHAR REGEXP '[a-zA-Z]' INTO V_BOOL;
    SELECT ASCII(FIRST_VARCHAR) INTO V_SPEC;
    
    IF V_BOOL = 1 THEN  
      SET V_RETURN = FIRST_VARCHAR;  
    ELSE
      IF V_SPEC <= 127 THEN 
        SET V_RETURN = 'ZZ';
      ELSE
      SET V_RETURN = ELT(INTERVAL(CONV(HEX(left(CONVERT(P_NAME USING gbk),1)),16,10),     
          0xA1A1,0xB0A1,0xB0C5,0xB2C1,0xB4EE,0xB6EA,0xB7A2,0xB8C1,0xB9FE,0xBBF7,     
          0xBFA6,0xC0AC,0xC2E8,0xC4C3,0xC5B6,0xC5BE,0xC6DA,0xC8BB,0xC8F6,
                    0xCBFA,0xCDDA,0xCEF4,0xD1B9,0xD4D1),     
      'ZZ','A','B','C','D','E','F','G','H','J','K','L','M','N','O','P','Q','R','S','T','W','X','Y','Z');    
      END IF;
    END IF;  
    RETURN V_RETURN;  
END$$  
DELIMITER ;

将特殊字符 排在最后。

 

 

GBK 编码：https://www.qqxiuzi.cn/zh/hanzi-gbk-bianma.php

参考：https://blog.csdn.net/qq_41988504/article/details/89014873