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@paulochf
Created March 11, 2016 19:10
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URL decode for MySQL
-- Found at http://stackoverflow.com/a/17922821/597349
DROP TABLE IF EXISTS urlcodemap;
CREATE TABLE `urlcodemap` (
`id` INT(11) NOT NULL AUTO_INCREMENT,
`encoded` VARCHAR(128) NOT NULL,
`decoded` VARCHAR(128) NOT NULL,
UNIQUE KEY urlcodemapUIdx1(encoded),
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
-- Table that contains the list of encode\decode.
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%20"," ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%21","!");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%22","""");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%23","#");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%24","$");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%25","%");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%26","&");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%27","'");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%28","(");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%29",")");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%2A","*");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%2B","+");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%2C",",");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%2D","-");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%2E",".");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%2F","/");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%30","0");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%31","1");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%32","2");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%33","3");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%34","4");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%35","5");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%36","6");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%37","7");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%38","8");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%39","9");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%3A",":");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%3B",";");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%3C","<");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%3D","=");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%3E",">");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%3F","?");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%40","@");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%41","A");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%42","B");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%43","C");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%44","D");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%45","E");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%46","F");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%47","G");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%48","H");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%49","I");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%4A","J");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%4B","K");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%4C","L");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%4D","M");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%4E","N");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%4F","O");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%50","P");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%51","Q");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%52","R");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%53","S");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%54","T");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%55","U");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%56","V");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%57","W");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%58","X");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%59","Y");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%5A","Z");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%5B","[");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%5C","\\");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%5D","]");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%5E","^");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%5F","_");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%60","`");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%61","a");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%62","b");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%63","c");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%64","d");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%65","e");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%66","f");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%67","g");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%68","h");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%69","i");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%6A","j");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%6B","k");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%6C","l");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%6D","m");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%6E","n");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%6F","o");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%70","p");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%71","q");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%72","r");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%73","s");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%74","t");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%75","u");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%76","v");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%77","w");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%78","x");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%79","y");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%7A","z");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%7B","{");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%7C","|");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%7D","}");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%7E","~");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%80","`");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%82","‚");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%83","ƒ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%84","„");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%85","…");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%86","†");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%87","‡");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%88","ˆ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%89","‰");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%8A","Š");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%8B","‹");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%8C","Œ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%8E","Ž");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%91","‘");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%92","’");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%93","“");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%94","”");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%95","•");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%96","–");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%97","—");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%98","˜");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%99","™");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%9A","š");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%9B","›");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%9C","œ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%9E","ž");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%9F","Ÿ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A1","¡");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A2","¢");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A3","£");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A4","¤");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A5","¥");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A6","¦");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A7","§");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A8","¨");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%A9","©");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%AA","ª");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%AB","«");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%AC","¬");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%AE","®");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%AF","¯");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B0","°");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B1","±");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B2","²");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B3","³");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B4","´");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B5","µ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B6","¶");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B7","·");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B8","¸");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%B9","¹");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%BA","º");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%BB","»");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%BC","¼");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%BD","½");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%BE","¾");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%BF","¿");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C0","À");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C1","Á");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C2","Â");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C3","Ã");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C4","Ä");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C5","Å");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C6","Æ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C7","Ç");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C8","È");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%C9","É");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%CA","");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%CB","Ë");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%CC","Ì");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%CD","Í");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%CE","Î");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%CF","Ï");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D0","Ð");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D1","Ñ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D2","Ò");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D3","Ó");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D4","Ô");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D5","Õ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D6","Ö");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D7","×");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D8","Ø");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%D9","Ù");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%DA","Ú");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%DB","Û");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%DC","Ü");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%DD","Ý");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%DE","Þ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%DF","ß");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E0","à");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E1","á");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E2","â");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E3","ã");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E4","ä");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E5","å");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E6","æ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E7","ç");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E8","è");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%E9","é");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%EA","ê");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%EB","ë");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%EC","ì");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%ED","í");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%EE","î");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%EF","ï");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F0","ð");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F1","ñ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F2","ò");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F3","ó");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F4","ô");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F5","õ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F6","ö");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F7","÷");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F8","ø");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%F9","ù");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%FA","ú");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%FB","û");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%FC","ü");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%FD","ý");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%FE","þ");
INSERT INTO urlcodemap (encoded,decoded) VALUES ("%FF","ÿ");
DELIMITER $$
DROP FUNCTION IF EXISTS `URLDECODER`$$
CREATE FUNCTION `URLDECODER`(str VARCHAR(4096) CHARSET utf8) RETURNS VARCHAR(4096) DETERMINISTIC
BEGIN
DECLARE X INT;
DECLARE chr VARCHAR(256);
DECLARE chrto VARCHAR(256);
DECLARE result VARCHAR(4096);
SET X = 1;
WHILE X <= (SELECT MAX(id) FROM urlcodemap) DO
SET chr = (SELECT `encoded` FROM urlcodemap WHERE id = X);
SET chrto = (SELECT `decoded` FROM urlcodemap WHERE id = X);
SET str = REPLACE(str,chr,chrto);
SET X = X + 1;
END WHILE;
RETURN str;
END$$
DELIMITER ;
@genialcode2077
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Error

select URLDECODER('Planeacion%20gestion%20y%20control/Ind.%20Consol.%20Estrat%20en%20Salud%20%202010-2012_0.pdf')

MySQL:
#1270 - Ilegal mezcla de collations (utf8_general_ci,IMPLICIT), (utf8_unicode_ci,IMPLICIT), (utf8_unicode_ci,IMPLICIT) para operación 'replace'

@paulochf
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Author

@angelsv, maybe this can help you better than me

https://stackoverflow.com/q/3029321/597349

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