#ANDROID SQLITE DATABASE TUTORIAL HOW TO#
#ANDROID SQLITE DATABASE TUTORIAL UPDATE#
#ANDROID SQLITE DATABASE TUTORIAL UPGRADE#
#ANDROID SQLITE DATABASE TUTORIAL ANDROID#

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#ANDROID SQLITE DATABASE TUTORIAL HOW TO#

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The following is the screenshot of the application we will build.

#ANDROID SQLITE DATABASE TUTORIAL UPDATE#

We will insert car data in the database, update the data, delete the data, and select the data.

#ANDROID SQLITE DATABASE TUTORIAL ANDROID#

In the next tutorial, we will create an Android application that stores car data in the database. lete(SQliteDBHelper.tableName, SQliteDBHelper.id + '=' + id, null) Int i = sqliteDB.update(SQliteDBHelper.tableName, contentValue, SQliteDBHelper.id + ' = ' + id, null) It requires the object of the old version number and the new version.įor example, here's an implementation of SQLiteOpenHelper that uses some of the commands shown above: public class SQliteDBHelper extends SQLiteOpenHelper Ĭursor cursor = sqliteDB.query(SQliteDBHelper.tableName, columns, null, null, null, null, null) ĬontentValues contentValue = new ContentValues() ĬontentValue.put(SQliteDBHelper.make, car.getMake()) ĬontentValue.put(SQliteDBHelper.model, car.getModel()) ĬontentValue.put(lor, car.getColor()) ĬontentValue.put(SQliteDBHelper.reg_no, car.getReg_no()) ĬontentValue.put(SQliteDBHelper.year, car.getYear())

onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) – called when the schema version needs to be updated.

onCreate(SQLiteDatabase db) – called when there is no database and the app needs to create one.

To use the SQLiteOpenHelper class, we’ll need to create a class that inherits SQLiteOpenHelper and implements at least the following three methods.

All you need to do is call getWritableDatabase() or getReadableDatabase(). When you use this class to obtain references to your database, the system performs the potentially long-running operations of creating and updating the database only when needed and not during app startup.

#ANDROID SQLITE DATABASE TUTORIAL UPGRADE#

The class contains the logic to create a new database or upgrade an existing database whenever the schema is changed. The SQLiteOpenHelper class has important APIs for managing your database. Your data is secure because by default this location is not accessible to other apps or the user. Once a database is created successfully its located in data/data//databases/ accessible from Android Device Monitor. You do not need to use any API like JDBC or ODBC because these might consume a lot of memory for a smartphone. Every Android can create its own SQLite database because SQLite is included in the Android runtime. Android SQLite is an implementation of the SQLite database and comes with all relational features. You will learn how to create a database, create tables, and alter tables and all CRUD operations.Īndroid comes with a very lightweight inbuilt relational database called Android SQLite. If you are new in SQL databases I recommend you read this article to know the most important SQL queries. Android SQLite is the most common way of storing data in android apps. In this tutorial, I will show you how to insert, update, delete, and select data from Android SQLite.

A database is ideal for storing repeating or structured data.

Android sqlite database tutorial