I do not know of any scenario in which query() will return null. It should either return a Cursor or raise an exception.
On Sat, Aug 13, 2011 at 11:27 PM, Ace Zhu <[email protected]> wrote: > I use the follow code to query a database. But it return a null value. > Can you tell me why? > Thanks. > "Cursor cursor = db.query("tableName", new String[]{"title"}, null, > null, null, null, null);" > Why cursor is null? > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" 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/android-developers?hl=en > -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy _The Busy Coder's Guide to Android Development_ Version 3.6 Available! -- You received this message because you are subscribed to the Google Groups "Android Developers" 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/android-developers?hl=en
