https://github.com/golu19102003/sqlite

An Android app for database creation using SQLite and Java allows users to store, retrieve, update, and delete structured data locally on their device. SQLite is a lightweight, embedded relational database engine that comes built-in with Android, making it ideal for apps that need persistent storage without relying on external servers
https://github.com/golu19102003/sqlite

android-application android-studio deletion insertion java sqlite-android sqlite-database updates viewdata xml-layouts

Last synced: 7 months ago
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An Android app for database creation using SQLite and Java allows users to store, retrieve, update, and delete structured data locally on their device. SQLite is a lightweight, embedded relational database engine that comes built-in with Android, making it ideal for apps that need persistent storage without relying on external servers

• Host: GitHub
• URL: https://github.com/golu19102003/sqlite
• Owner: golu19102003
• Created: 2025-05-25T04:54:20.000Z (8 months ago)
• Default Branch: master
• Last Pushed: 2025-05-25T07:02:31.000Z (8 months ago)
• Last Synced: 2025-06-08T03:30:20.040Z (8 months ago)
• Topics: android-application, android-studio, deletion, insertion, java, sqlite-android, sqlite-database, updates, viewdata, xml-layouts
• Language: Java
• Homepage:
• Size: 107 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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## Android App for Database Creation Using SQLite (Java)

This Android application provides a comprehensive solution for creating, managing, and interacting with a local SQLite database using Java. Below is a detailed description suitable for a README file.

**Overview**

This app demonstrates how to implement a local database in Android using SQLite. It allows users to create, read, update, and delete (CRUD) data entries efficiently, leveraging the built-in SQLite database engine that comes with Android devices. The app is ideal for learning or as a template for projects requiring structured local data storage.

**Features**

- Local data storage using SQLite (no internet connection required)

- Full CRUD operations (Create, Read, Update, Delete)

- Clean and intuitive user interface

- Database schema management and versioning

- Efficient data retrieval with support for queries and indexing

- Lightweight and fast, suitable for resource-constrained devices[5][6]

**Architecture**

- **SQLiteOpenHelper**: Central to the app, this helper class manages database creation, schema upgrades, and version control. It encapsulates logic for initializing and upgrading the database, ensuring smooth migrations between app versions[5][6].

- **SQLiteDatabase**: Used to perform SQL operations such as insert, update, delete, and query.

- **Data Access Object (DAO)**: Custom Java classes encapsulate database operations, providing a clean API for interacting with the database[5].

- **Cursor**: Used to retrieve and iterate over query results.

  

**How It Works**

1. **Database Initialization**

   - The app uses a subclass of `SQLiteOpenHelper` to define the database schema (tables, columns, indexes) and manage upgrades[5][6].

   - The database is stored locally in the app's private storage area.

2. **CRUD Operations**

   - **Create**: Insert new records into the database using SQL `INSERT` statements.

   - **Read**: Retrieve data using SQL `SELECT` queries. Results are managed using the `Cursor` class.

   - **Update**: Modify existing records with SQL `UPDATE` statements.

   - **Delete**: Remove records using SQL `DELETE` statements[5][6].

3. **User Interface**

   - The UI provides forms and lists for users to interact with the database, such as adding new entries or viewing existing data.

     

**Why Use SQLite in Android?**

- **Embedded and Lightweight**: No separate server required; runs entirely on the device.

- **Offline Access**: Data is always available, even without internet connectivity.

- **SQL Compatibility**: Leverages standard SQL syntax for defining and querying data.

- **Transaction Support**: Ensures data integrity with atomic operations.

- **Efficient Data Management**: Indexing and query optimization for fast retrieval[5][6][7].

  

**Project Structure**

- "DBHelper.java": Handles database creation, schema definition, and upgrades.

- "MainActivity.java": Manages UI and user interactions.

- "DataModel.java": Represents the data structure.

- "DAO.java": Contains methods for CRUD operations.

**Getting Started**

1. Clone or download the project.

2. Open in Android Studio.

3. Build and run on an Android device or emulator.

4. Use the UI to add, view, update, or delete records.

**Customization**

- Modify the database schema in `DBHelper.java` to fit your data requirements.

- Extend UI components to support additional features or data types.