SQLite is a lightweight transactional database engine that occupies a small amount of disk storage and memory, so it's a perfect choice for creating databases on many mobile operating systems such as Android, iOS. SQLite is an open-source relational database that is used to perform database operations on Android devices such as storing, manipulating or retrieving persistent data from the database.. By default SQLite database is embedded in android. SQLite is a structure query base database, hence we can say it’s a relation database. I assume you have connected your actual Android Mobile device with your computer. In this article, I have attempted to demonstrate the use of SQLite database in Android in the simplest manner possible. This is how we can use the SQLite database to perform CRUD (insert, update, delete and select) operations in android applications to store and retrieve data from the SQLite database based on our requirements. To know more about SQLite, check this SQLite Tutorial with Examples. Generally, in our android applications Shared Preferences, Internal Storage and External Storage options are useful to store and maintain a small amount of data. You can use the SELECT statement to perform a simple calculation as follows: */ public class DbHandler extends SQLiteOpenHelper {     private static final int DB_VERSION = 1;     private static final String DB_NAME = "usersdb";     private static final String TABLE_Users = "userdetails";     private static final String KEY_ID = "id";     private static final String KEY_NAME = "name";     private static final String KEY_LOC = "location";     private static final String KEY_DESG = "designation";     public DbHandler(Context context){         super(context,DB_NAME, null, DB_VERSION);     }     @Override     public void onCreate(SQLiteDatabase db){         String CREATE_TABLE = "CREATE TABLE " + TABLE_Users + "("                 + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + KEY_NAME + " TEXT,"                 + KEY_LOC + " TEXT,"                 + KEY_DESG + " TEXT"+ ")";         db.execSQL(CREATE_TABLE);     }     @Override     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){         // Drop older table if exist         db.execSQL("DROP TABLE IF EXISTS " + TABLE_Users);         // Create tables again         onCreate(db);     }     // **** CRUD (Create, Read, Update, Delete) Operations ***** //     // Adding new User Details     void insertUserDetails(String name, String location, String designation){         //Get the Data Repository in write mode         SQLiteDatabase db = this.getWritableDatabase();         //Create a new map of values, where column names are the keys         ContentValues cValues = new ContentValues();         cValues.put(KEY_NAME, name);         cValues.put(KEY_LOC, location);         cValues.put(KEY_DESG, designation);         // Insert the new row, returning the primary key value of the new row         long newRowId = db.insert(TABLE_Users,null, cValues);         db.close();     }     // Get User Details     public ArrayList> GetUsers(){         SQLiteDatabase db = this.getWritableDatabase();         ArrayList> userList = new ArrayList<>();         String query = "SELECT name, location, designation FROM "+ TABLE_Users;         Cursor cursor = db.rawQuery(query,null);         while (cursor.moveToNext()){             HashMap user = new HashMap<>();             user.put("name",cursor.getString(cursor.getColumnIndex(KEY_NAME)));             user.put("designation",cursor.getString(cursor.getColumnIndex(KEY_DESG)));             user.put("location",cursor.getString(cursor.getColumnIndex(KEY_LOC)));             userList.add(user);         }         return  userList;     }     // Get User Details based on userid     public ArrayList> GetUserByUserId(int userid){         SQLiteDatabase db = this.getWritableDatabase();         ArrayList> userList = new ArrayList<>();         String query = "SELECT name, location, designation FROM "+ TABLE_Users;         Cursor cursor = db.query(TABLE_Users, new String[]{KEY_NAME, KEY_LOC, KEY_DESG}, KEY_ID+ "=? Now we will create another layout resource file details.xml in \res\layout path to show the details in custom listview from SQLite Database for that right click on your layout folder à Go to New à select Layout Resource File and give name as details.xml. We would also insert data into SQLite database using EditText and store entered values into database tables. I am getting lot of queries about handling the sqlite database when it is having multiple tables. SQLite is an open-source relational database. Create a new android application using android studio and give names as SQLiteExample. android.database.sqlite.SQLiteOpenHelper; // **** CRUD (Create, Read, Update, Delete) Operations ***** //, insertUserDetails(String name, String location, String designation){, ArrayList> GetUsers(){, "SELECT name, location, designation FROM ", ArrayList> GetUserByUserId(. SQLiteDatabase 3.4. rawQuery() Example 3.5. query() Example 3.6. Following is the code snippet to delete the data from the SQLite database using the delete() method in the android application. Kotlin Android SQLite Tutorial. The code illustrates how to perform simpleSQLite.NET operations and shows the results in as text in theapplication's main window. When you click the … Android SQLite CRUD Operations Examples … To run the app from android studio, open one of your project's activity files and click Run  icon from the toolbar. Step 3 − Add the following code to src/MainActivity.java, Step 4 − Add the following code to src/ DatabaseHelper.java, Let's try to run your application. if your SQL query is like this. SQLiteDatabase db = this.getWritableDatabase (); ContentValues cVals = new ContentValues (); cVals.put (KEY_LOC, location); Once we create an application, create a class file DbHandler.java in \java\com.tutlane.sqliteexample path to implement SQLite database related activities for that right-click on your application folder à Go to New à select Java Class and give name as DbHandler.java. How to use sqlite_version () in Android sqlite? 2. In android, we can read the data from the SQLite database using the query() method in android applications. Now we will create another activity file DetailsActivity.java in \java\com.tutlane.sqliteexample path to show the details from the SQLite database for that right-click on your application folder à Go to New à select Java Class and give name as DetailsActivity.java. Saving data to a database is ideal for repeating or structured data, such as contact information. 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