So, if we r using RESTful webservice is it possible to access the Tables present in the database??? and doing some operations on the database i.e) Adding/Deleting a row/ column into the database table??
I saw one example which uses JSON Object for getting the stream.. So if i want to access databases which class we need to use?? If u have any related code regarding this please let me know... Expecting more information regarding example code... Thanks in advance --Cheers Uday Kiran Pichika On Mar 19, 8:22 pm, Bob Kerns <r...@acm.org> wrote: > No, you get a different set of headaches. Drivers (e.g. JDBC drivers) > are not intended for this sort of application. > > You will have reliability problems, security problems, performance > problems, problems upgrading your server once you have clients talking > to it, because you can't upgrade all your clients at once, etc. > > You'll also have the problems getting the drivers to work on the > Android platform, which lacks support for database drivers. I think > it's probably possible to do, but since it's not a good thing to do, I > don't know of anyone who has succeeded. I've seen a lot of messages > from people who have tried and failed. > > Drivers are much too closely coupled to the database. A competent > system administrator WILL NOT ALLOW YOU ACCESS to databases from > outside their firewalls, for security reasons. > > You will normally would use database drivers when implementing the web > server. Sqlite is an embedded server with its own API, but you could > consider that a type of driver as well. > > But as I said earlier, a non-Sqlite database, such as MySQL, would be > a far better choice for performance, scalability, and reliability > reasons. Unfortunately, that means yet more stuff to learn. > Fortunately, it's mostly fairly standard stuff, so you'll get to use > what you learn later in your career -- but it's still something you'll > need to learn up front. > > None of these things are that hard to learn, but it's a lot to learn > all at once. Especially if you expected to do things one way, and are > told you have to do them a different way. It'll be hard to switch your > way of thinking. > > On Mar 19, 7:03 am, uday kiran <uday.pic...@gmail.com> wrote: > > > Hey Bob,, > > > Tell me one thing...instead of using Webservices,it is easy if we r > > using Drivers.. > > If we know which type of database they r using on server side,then we > > can access that database using > > related driver...so that the headache willl be reduced am i right??? > > > what is the difference of using driver in place of Webservices???? > > > On Mar 19, 1:16 am, Bob Kerns <r...@acm.org> wrote: > > > > On Mar 18, 2:37 am, uday kiran <uday.pic...@gmail.com> wrote: > > > - So for communicatingdatabase(On remote server) from our > > > application > > > - it is compulsory to write a driver like odbc??? > > > > No, ODBC (or JDBC) is at the wrong level. You do not want to be doing > > > SQL over the network. > > > > Instead, you want to create a web server that does the SQL -- and you > > > just ask it questions (via HTTP GET) or give it commands (PUT, POST, > > > DELETE). > > > > If you already know Java well, a Java Servlet would be the easiest way > > > to go -- running in a servlet engine line Tomcat. > > > > Tools like Ruby on Rails are supposed to make this even easier, but > > > will involve learning a new language. > > > > You're going to have to go and do some studying, and look at a number > > > of examples. I'm not going to look for a pointer to an example for > > > you, because if you do it yourself, you can chose ones that more > > > closely relate to what you're trying to do, or better fit your style > > > of learning. > > > > But you can start on the server side by writing a unit test that > > > simply takes a URL, interprets the parameters, and does the > > > corresponding SQL query, and returns the result as either XML or JSON. > > > Once you have that, it's a simple matter to embed that in the > > > appropriate bit of code for your web server technology (e.g. a > > > Servlet, in the case of Java). The client side just requests the data > > > from that URL and reads it. > > > > Once you get that far for one kind of data, and the GET operation, the > > > next steps will be both easier and more clear to you. Part of your > > > problem right now is you're trying to deal with the entire question at > > > once. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe from this group, send email to android-developers+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
