Can you use StackOverflow for this kind of questions? http://stackoverflow.com/questions/tagged/google-app-engine
On Wed, Aug 1, 2012 at 3:29 PM, Neo <[email protected]> wrote: > Suppose, In my website, I ask users to input some string. A user can input > string multiple times. Whenever any user inputs a string, I log it in the > database along with the time. Many strings can be same, even though inputted > by different users. In the home page, I need to give the interface such that > any user can query for top n (say 50) strings in any time period (say 10 Jan > 2012 to 30 Jan 2012). If it was SQL, I could have written query like: > > select string, count(*) > from userStrings where day >= d1 and day <= d2 > group by string > order by count(*) desc > limit n > > How do I solve it in GAE environment? For each such user query, I can't > process the record at query time - there can be millions of records. > > I am using JDO. My obvious goal is to minimize the app engine cost : CPU + > data. > > Thanks, > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-appengine/-/-LDkbiRUoQsJ. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. -- Takashi Matsuo -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
