Android sqlite database examples3/21/2024 ![]() I just tested these SQLite foreign key examples on my system, using SQLite version 3.4.0, and they all work fine. Create a new android application using android studio and give names as SQLiteExample. INSERT INTO customers VALUES (null, 'FOOBAR', '200 Foo Way', 'Louisville', 'KY', '40207') Following is the example of creating the SQLite database, insert and show the details from the SQLite database into an android listview using the SQLiteOpenHelper class. INSERT INTO customers VALUES (null, 'ACME, INC.', '101 Main Street', 'Anchorage', 'AK', '99501') The Employee table will contain a foreign key reference to the Employer. INSERT INTO salespeople VALUES (null, 'Barney', 'Rubble', 10.0) Sample app description For the sample app, we are going to create two tables, an Employer table and an Employee table. Android SQLite is the mostly preferred way to storage info for android applications. Room is designed to abstract away the underlying database tables and queries. Welcome to Android SQLite Example Tutorial. Room is an annotation processing based SQL object mapping library provided by Google. Inserting new Record into Android SQLite. Opening and Closing Android SQLite Database Connection. ![]() Android has features available to handle changing database schemas, which mostly depend on using the SQLiteOpenHelper. INSERT INTO salespeople VALUES (null, 'Fred', 'Flinstone', 10.0) Using Room as SQL object mapping library. Android SQLite Database Example Tutorial. If you'd like to test this SQLite foreign key example in your own SQLite database, here's some sample data for each of these tables: Next, define a SQLite table that has two foreign keys, one that relates a new orders table back to the customers table, and a second foreign key that relates the orders table back to the salespeople table:įOREIGN KEY(customer_id) REFERENCES customers(id),įOREIGN KEY(salesperson_id) REFERENCES salespeople(id)Īs you can see, the SQLite foreign key syntax is very similar to other databases. ![]() To show how this works, first define two database tables that don’t have any foreign keys: Create a new Android Project Open Eclipse IDE and go to File -> New -> Project -> Android -> Android Application Project. Here’s a quick SQLite foreign key example. The SQLite database does support foreign keys, and its foreign key syntax is similar to other databases. SQLite foreign keys FAQ: Can you show me how to define foreign keys in a SQLite database table design?
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