Why not use the search function? This subject has been done to death, repeatedly, and nothing has changed.
To complete the theoretical examinations for a JAA licence in one member state and the flight training in another requires the agreement of both countries. The only two JAA member states that currently have such an agreement are the UK and the Republic of Ireland, thus you can do the licence exams in the UK and the flight training in Ireland or vice-versa. No other country in the EU is prepared to enter into such an agreement so exams in UK and flight training in Spain, for example, is a non-starter. There may be countries (not unadjacent to the eastern Mediterranean) that are prepared to issue a licence based on another country's examinations without a formal agreement being in place, but this is not in accordance with JARs and other member states could, justifiably, refuse to recognise a licence so issued.
Ratings to be included in a JAA licence are another matter. JARs require the State of Licence Issue to accept training and testing for ratings (e.g. Class, Type, Instrument, FI, etc.) from any other member state and to issues the appropriate rating. Throughout most of the JAA this works OK, although in the case of certain states (not unadjacent to the Iberian Peninsula) the authorities will go to extreme lengths to avoid complying with this requirement, especially when the training has taken place in the USA.