db.js holds function to handle database and jquery.js has $document.ready function’s definition. Public class JavaScriptTestActivity extends Activity Step 4 : Create index.html (here also you can create file with any name)įor now index.html is pretty decent page just having two script tag and few html tags You can name it JavaScriptTest or any name say I hate Java Script □ Step 2: Create an activity which has webview in it. Step 1 : Create a simple android project. Here are the steps to create database from javascript. (Yea really !!! I was wondering whether it is possible or not.) After some r&d and help of few I am able to find out the things. There are lot of stuff to which I can share with you but which I found most interesting is connecting sqlite database using javascript code. Can anyone help me who knows database very well, android database sqlite Share. I have one table which contains one field.StudentFname and that application is working fine with Android 2.3.1 and now if I add another field then my application is not working properly. Basically the project is mixture of HTML5,JavaScript,jQuery and Android-Java. I have one problem with Android SQLite database. Package import import import import import import import java.util.1 month back I was assigned a project where we need to make our own Phone Gap like mechanism. The data stored can be checked on the logcat. In the below example, we are demonstrating the usage of the android SQLite database to store and fetch the data. Int update(String table, ContentValues values, String whereClause, String whereArgs)Ĭursor query(String table, String columns, String selection, String selectionArgs, String groupBy, String having, String orderBy) The values to be stored are specified by the third argument. The null values are stored by android, if the second argument is null and the values are empty. Completely null values are not allowed by the nullColumnHack. The table name is specified by the table. Long insert(String table, String nullColumnHack, ContentValues values) To execute the sql query not select query. Some of the important methods of the SQLiteDatabase class are: Method The SQLiteDatabase class has many methods. The methods like create, update, delete, select, etc, that are performed on the SQLite database are included in the SQLiteDatabase class. To be called when the database needs to be downgraded. Public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) To be called when the database needs to be upgraded. Public abstract void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) To be called when the database is created for the first time. Public abstract void onCreate(SQLiteDatabase db) Some of the important methods of the SQLiteOpenHelper class are: Method The SQLiteOpenHelper class has many methods. To create an object that can create, open and manage the database, and to also specify the error handler. SQLiteOpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version, DatabaseErrorHandler errorHandler) To create an object that can create, open and manage the database. SQLiteOpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) The SQLiteOpenHelper class has two constructors. The implementation of onCreate() and onUpgrade() methods of SQLiteOpenHelper class is required to be provided to perform any database operation. The functionality to use the SQLite database is provided by the class which is used for database creation and version management.
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