I don't think it's '+' operator. I would rather suspect that your cursor has 0 records. Check @@CURSOR_ROWS system variable for the number of records in the cursor.

>Thank you Sergey, but it still not working.
>The problem, I belive, is in the '+' string concatenation into SET command.
>Existe other comand similar to SET to concat strings ?
>
>>The fetch command should be at the end of WHILE loop, otherwise you're skipping the first record.

		SET @txt = @txt + @txtaux
>>		FETCH NEXT FROM cur_text INTO @txtaux

>>
>>>I need to accumulate in a local variable a valstring value.
>>>But, for some reason, this not working, the code is: