Were you prompted to overwrite the data source when you published the new one from Tableau Desktop to Tableau Server? If not, you likely were not saving it in the same location as the original data source.
Hope this helps!
I'm saving in the asame location, but the firts is linked to de dashboard and the other not.
I have "Book1" in Tableau and I upload it with the data base "Consolidado". When I try to upload the file, the firts as saved with the name "Consolidado- Book1" (it's linked), and the name of the second is "Consolidado", but i want to overwrite it
Thanks for your answer, and sorry for my english
I'm having some difficulty understanding the exact scenario - would you be able to include some screenshots to better illustrate the issue? You may also be able to submit a case to Tableau Technical Support where they provide technical assistance in multiple languages: http://www.tableau.com/support/request