We can retrieve anything from database using an object of the Cursor class. We will call a method of this class called rawQuery and it will return a resultset with the cursor pointing to the table. We can move the cursor forward and retrieve the data. This method return the total number of columns of the table.

SQLiteOpenHelper class is used for database creation and version management….Methods of SQLiteOpenHelper class.

android.database.sqlite.SQLiteOpenHelper. A helper class to manage database creation and version management. You create a subclass implementing onCreate , onUpgrade and optionally onOpen , and this class takes care of opening the database if it exists, creating it if it does not, and upgrading it as necessary.

SQLite is another data storage available in Android where we can store data in the user’s device and can use it any time when required. This is a series of 4 articles in which we are going to perform the basic CRUD (Create, Read, Update, and Delete) operation with SQLite Database in Android.

To open the database in DB Browser do the following;

1. Click on the ‘open database’ button in the toolbar.
2. Navigate to where you have stored the database file on your local machine, select it and click open.

Cursors are what contain the result set of a query made against a database in Android. The Cursor class has an API that allows an app to read (in a type-safe manner) the columns that were returned from the query as well as iterate over the rows of the result set.

Step by Step Procedures

1. Step 1: Open android studio project which has SQLite database connection.
2. Step 2: Connect a device.
3. Step 3: Search for Device File Explorer in android studio.
4. Step 4: Search application package name.
5. Step 5: Download the database.
6. Step 6: Download SQLite browser.
7. Step 7: Search saved database file.

Some device manufacturers include different versions of SQLite on their devices. There are two ways to programmatically determine the version number….android.database.sqlite.

Drag and drop your SQLite file directly into the SQLite editor or click on “Database file > Open DB file” to open your SQLite database.

SQLite Backup & Database

1. Navigate to “C:/sqlite” folder, then double-click sqlite3.exe to open it.
2. Open the database using the following query .open c:/sqlite/sample/SchoolDB.db.
3. If it is in the same directory where sqlite3.exe is located, then you don’t need to specify a location, like this: .open SchoolDB.db.

The Android SDK provides dedicated APIs that allow developers to use SQLite databases in their applications. The SQLite files are generally stored on the internal storage under /data/data//databases.

Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don’t need to establish any kind of connections for it like JDBC,ODBC e.t.c

Database – Helper class. For managing all the operations related to the database , an helper class has been given and is called SQLiteOpenHelper. It automatically manages the creation and update of the database.

SQLiteOpenHelper class The android.database.sqlite.SQLiteOpenHelper class is used for database creation and version management. For performing any database operation, you have to provide the implementation of onCreate () and onUpgrade () methods of SQLiteOpenHelper class. Constructors of SQLiteOpenHelper class

For maximum control over local data, developers can use SQLite directly by leveraging SQLiteOpenHelper for executing SQL requests and managing a local database. In this guide, we’ll use the example of building a database to persist user created “Posts” to demonstrate SQLite and SQLiteOpenHelper.