Further to Fabio's solution, you can simplify your statement by not having all the "As" clauses in it, where the result column name is the same as the source,
e.g. "llamadas.numero as numero"
It's only needed when the result col's name is different.
- Whoever said that women are the weaker sex never tried to wrest the bedclothes off one in the middle of the night
- Worry is the interest you pay, in advance, for a loan that you may never need to take out.
