how to insert record sqlite database using android

 how to insert record sqlite database using android

Introduction

In today's mobile-driven world, almost all applications require a way to store data locally. SQLite is a popular choice for Android developers as it is lightweight, simple to use, and comes pre-installed on Android devices. In this guide, we will provide you with a step-by-step process for inserting data into a SQLite database in Android.

Prerequisites

Before we get started, you will need to have a basic understanding of Android development and the Android Studio IDE. You should also have a SQLite database set up in your project, and a basic understanding of SQL syntax.

Step 1: Creating a Database Helper Class

To insert data into a SQLite database, we first need to create a database helper class that will manage the database connection and provide methods for executing SQL queries. To do this, we need to extend the SQLiteOpenHelper class and implement the onCreate() and onUpgrade() methods.

Step 2: Defining the Table Structure

Before we can insert data into a SQLite database, we need to define the table structure. This includes the table name, column names, and column data types. We can define the table structure in the onCreate() method of our database helper class.

CREATE TABLE contacts (

  id INTEGER PRIMARY KEY,

  name TEXT,

  email TEXT

);

Step 3: Inserting Data

To insert data into a SQLite database, we use the SQLiteDatabase.insert() method. This method takes in the table name, a nullColumnHack, and a ContentValues object that contains the column name and value pairs for the data we want to insert.

SQLiteDatabase db = this.getWritableDatabase();

ContentValues values = new ContentValues();

values.put("name", "John Doe");

values.put("email", "johndoe@example.com");

long id = db.insert("contacts", null, values);

db.close();