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:
>>

>>USE Osiris
>>GO
>>
>>DECLARE @txt VARCHAR(1000)
>>DECLARE @txtaux VARCHAR(120)
>>
>>SET @txt = ''
>>SET @txtaux = ''
>>
>>DECLARE cur_text CURSOR FOR
>>   SELECT texto FROM Universe.dbo.textOdi
>>             WHERE Universe.dbo.textOdi.certif = 'PM115451'
>>	OPEN cur_text
>>	FETCH NEXT FROM cur_text INTO @txtaux
>>	WHILE @@FETCH_STATUS = 0
>>	BEGIN
>>		FETCH NEXT FROM cur_text INTO @txtaux
>>		SET @txt = @txt + @txtaux
>>	END
>>	CLOSE cur_text
>>	DEALLOCATE cur_text
>>
>>PRINT @txt
>>

>>
>>Why the @txt local variable doesn't have any accumulated value, if this value this being assigned with the SET commando ?
>>
>>Thanks.