This works on MySQL 5.0.41, but on 5.1.31 it just says "failed to create function". I type this in the console:
delimiter |
<press enter>
CREATE DEFINER=`root`@`localhost` FUNCTION `ucwords`( str VARCHAR(128) ) RETURNS varchar(128) CHARSET utf8
BEGIN
DECLARE c CHAR(1);
DECLARE s VARCHAR(128);
DECLARE i INT DEFAULT 1;
DECLARE bool INT DEFAULT 1;
DECLARE punct CHAR(17) DEFAULT ()[]{},.-_!@;:?/ ;
SET s = LCASE( str );
WHILE i < LENGTH( str ) DO
BEGIN
SET c = SUBSTRING( s, i, 1 );
IF LOCATE( c, punct ) > 0 THEN
SET bool = 1;
ELSEIF bool=1 THEN
BEGIN
IF c >= a AND c <= z THEN
BEGIN
SET s = CONCAT(LEFT(s,i-1),UCASE(c),SUBSTRING(s,i+1));
SET bool = 0;
END;
ELSEIF c >= 0 AND c <= 9 THEN
SET bool = 0;
END IF;
END;
END IF;
SET i = i+1;
END;
END WHILE;
RETURN s;
END |
<press enter>
我甚至试图将其减少到最低限度,只是:
delimiter |
<press enter>
CREATE DEFINER=`root`@`localhost` FUNCTION `ucwords`( str VARCHAR(128) ) RETURNS varchar(128) CHARSET utf8
BEGIN
DECLARE s VARCHAR(128);
RETURN s;
END |
<press enter>
我甚至在没有定义者的情况下试图这样做,只是使用:
delimiter |
<press enter>
CREATE FUNCTION `ucwords`( str VARCHAR(128) ) RETURNS varchar(128) CHARSET utf8
BEGIN
DECLARE s VARCHAR(128);
RETURN s;
END |
<press enter>