Shawn_Chiu wrote: > How to retrieve data from two tables via the ContentProvider way? > I.E. the database of Calendar application, include many tables > including Events and Deleted, and some others. > I want to retrive records in Events table, whose _sync_id field is > also in Deleted table. > Usually, we write a SQL sentence like: > select (all fields in Events) > from Events as e, Deleted as d > where e._sync_id = d._sync_id > or select * > from Events as e > where e._sync_id in select _sync_id from Deleted > etc. > But, how can I accomplish it in the ContentProvider way?
Use CursorJoiner (if it fits your use case) or CursorWrapper (if CursorJoiner is not quite flexible enough). -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android App Developer Books: http://commonsware.com/books.html --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
