Could not update the upated values from sqlite

platform : IOS SDK : 3.5.0 Hi, I have submitted my app to app store, now I need to update the app by making some changes into the local database i.e. in sqlite. I have update the column values of a table and installed on the mobile, Now I cannot see the values were updated in the mobile. But those values are updated when I uninstall the app. Please help me regarding this. I have installed the database like this.

var db1 = Titanium.Database.install('/data/db.sqlite','Db');