Question

我想添加mysql函数：

CREATE FUNCTION `chf_get_translation`(translation_id INT, site_lang INT) 
RETURNS text CHARSET utf8
BEGIN

  DECLARE translation TEXT;

  SELECT title 
    INTO translation 
    FROM chf_translations 
   WHERE key_id = translation_id 
     AND lang_id = site_lang;

  RETURN translation;

END

但是得到错误：

1064 - 您的SQL语法出错;检查与MySQL服务器版本对应的手册，以便在第3行的''附近使用正确的语法

Answer 1

...试

DELIMITER $$

CREATE FUNCTION `chf_get_translation`(translation_id INT, site_lang INT) 
RETURNS text CHARSET utf8
BEGIN

  DECLARE translation TEXT;

  SELECT title 
    INTO translation 
    FROM chf_translations 
   WHERE key_id = translation_id 
     AND lang_id = site_lang;

  RETURN translation;

END$$

Answer 2

DELIMITER $

CREATE FUNCTION `chf_get_translation`(translation_id INT, site_lang INT) 
RETURNS text CHARSET utf8
DETERMINISTIC
BEGIN

  DECLARE translation TEXT;

  SELECT title 
    INTO translation 
    FROM chf_translations 
   WHERE key_id = translation_id 
     AND lang_id = site_lang;

  RETURN translation;

END$

如何修复MySQL CREATE FUNCTION查询？

2 个答案: