Local Database
sqflite, CRUD operations, migrations, transactions, relationships, query performance
1Which package is most commonly used to implement a SQLite database in a Flutter application?
Which package is most commonly used to implement a SQLite database in a Flutter application?
Resposta
The sqflite package is the de facto standard for SQLite in Flutter. It provides an asynchronous API to interact with SQLite, supporting CRUD operations, transactions, and raw SQL queries. It is maintained by the Flutter team and offers optimal compatibility with Android and iOS.
2Which sqflite function opens a database and creates it if it doesn't exist?
Which sqflite function opens a database and creates it if it doesn't exist?
Resposta
The openDatabase function is the main method to initialize a sqflite database. It accepts a file path and an onCreate callback that is only called if the database doesn't exist yet. This allows defining the initial schema with the required tables.
3Which complementary package is typically used with sqflite to get the application's documents directory path?
Which complementary package is typically used with sqflite to get the application's documents directory path?
Resposta
The path_provider package provides paths to system directories like documents or cache. Combined with sqflite, it allows determining where to store the database file. The getApplicationDocumentsDirectory function returns a persistent directory accessible only by the application.
Which sqflite method inserts a new row into a table and returns the inserted row's ID?
Which sqflite method retrieves multiple rows from a table as a List<Map<String, dynamic>>?
+19 perguntas de entrevista
Outros temas de entrevista Flutter
Dart Basics
Dart Language Essentials
Flutter Fundamentals
Widget Lifecycle
Local Storage
Application Lifecycle
Layouts & Constraints
ListView & GridView
Navigation & Routing
Basic State Management
Provider Pattern
Networking & HTTP
JSON Serialization
Forms & Validation
Animations
Firebase Integration
Unit Testing
Widget Testing
Build & Deployment
Package Management
Memory & Performance
Streams & RxDart
Advanced State Management
Flutter Design Patterns
Performance Optimization
Platform Channels
Custom Painting
Flutter Application Architecture
Domine Flutter para sua proxima entrevista
Acesse todas as perguntas, flashcards, testes tecnicos, exercicios de code review e simuladores de entrevista.
Comece gratis