Describe your practical experience with relational database management systems.

In Flutter projects, I used relational databases, mainly SQLite, through the sqflite package. I practically created tables using SQL queries and implemented CRUD operations (create, read, update, delete) for storing local application data. For example, to store a task list, I created a table with fields id, title, description, and status.

Example of creating a table and inserting data:

final db = await openDatabase('app.db');
await db.execute('''
  CREATE TABLE tasks(
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    title TEXT,
    description TEXT,
    status INTEGER
  )
''');

await db.insert('tasks', {'title': 'Make a report', 'description': 'Prepare the report by Friday', 'status': 0});

I also used transactions to ensure data integrity during batch operations and indexes to speed up queries. Experience with relational DBMS helps to efficiently organize local data storage in mobile applications.