SQLite Storage SQLite storage is a lightweight database built into Android devices. It allows you to store and retrieve data in a private and secure manner,...
SQLite storage is a lightweight database built into Android devices. It allows you to store and retrieve data in a private and secure manner, separate from the Android system's built-in SQLite database.
Key Concepts:
Database: SQLite is a database that acts as a virtual file manager for your app.
Tables: Tables are the building blocks of a database, containing rows of data and columns of data.
Rows: Each row represents a record in a table, containing a set of values.
Columns: Each column represents a specific data type, like text, integer, or date.
Benefits of SQLite:
Data isolation: SQLite data is not directly accessible from the Android system, enhancing security and preventing unauthorized access.
Lightweight and efficient: SQLite is significantly smaller and faster than the system's built-in SQLite, leading to better performance.
Schema-less: You can define your database structure dynamically without needing to define it upfront, allowing for flexibility and adaptability.
Example:
Imagine a "Contacts" table with two columns: "name" and "phone". Each row would represent a contact's information. You can create this table and then add data to it:
sql
CREATE TABLE contacts (
name TEXT NOT NULL,
phone TEXT NOT NULL
);
INSERT INTO contacts (name, phone) VALUES ("John Doe", "123-456-7890");
Additional Notes:
SQLite is available on both Android versions 4.0 (Lollipop) and above.
You can query data in SQLite using SQL queries, allowing you to retrieve and manipulate data based on specific conditions.
SQLite can be used for various purposes, including storing user data, application settings, and other app-specific information