Question

I need to copy a row .
Copied row,I need to change value, this value + ‘copy’
I made this sql..but it’s not work..

INSERT INTO prizes_i18n (
  lang_id
  , translation_name
  , translation_desc
  , name
  , lang_path)
SELECT  prizes_s.lang_id
        , prizes_s.translation_name +  'copy'
        , prizes_s.translation_desc
        , prizes_s.name
        , prizes_s.lang_path   
FROM    prizes_i18n prizes_s 
WHERE   prizes_s.lang_id = 637; 

Without + ‘copy’ its works.
Like this prizes_s.translation_name + 'copyy',but it’s not work.

Answer 1

From this previous question you use MySQL? If so use concat for string concatenation.

SELECT 'foo' + 'bar' ...

Returns 0 in MySQL which would explain the error about doubles you are seeing.

INSERT INTO  prizes_i18n (lang_id, translation_name, translation_desc, 
                          name, lang_path)
SELECT  prizes_s.lang_id,
    concat(prizes_s.translation_name, 'copy'),    
    prizes_s.translation_desc, prizes_s.name, prizes_s.lang_path  
FROM prizes_i18n prizes_s WHERE prizes_s.lang_id = 637;