6 Questions
Which class is used for database creation and version management in Android SQLite?
android.database.sqlite.SQLiteOpenHelper
Which method of SQLiteDatabase class executes the SQL query that is not a select query?
execSQL()
Which file contains methods like onUpgrade(), insertNewBook(), getData(), deleteBook(), and updateBook()?
dbHelper.java
What is the purpose of SQLiteOpenHelper class in Android SQLite?
To create and manage the database
What is the advantage of using SQLite in Android?
It stores data to a text file on a device
What are the required methods to be implemented in SQLiteOpenHelper class for performing any database operation?
onCreate() and onUpgrade()
Study Notes
Working with SQLite Database
- SQLite is an open source SQL database that stores data to a text file on a device.
- Android comes with built-in SQLite database implementation that supports all the relational database features.
- The android.database.sqlite.SQLiteOpenHelper class is used for database creation and version management.
- The SQLiteOpenHelper class has two constructors and many methods including onCreate(), onUpgrade(), and close().
- The SQLiteDatabase class contains methods to be performed on SQLite database such as create, update, delete, and select.
- The execSQL() method of SQLiteDatabase class executes the SQL query not select query.
- The insert() method of SQLiteDatabase class inserts a record on the database.
- The update() method of SQLiteDatabase class updates a row.
- The query() method of SQLiteDatabase class returns a cursor over the result set.
- The dbHelper.java file contains methods like onUpgrade(), insertNewBook(), getData(), deleteBook(), and updateBook() for performing database operations.
- The MainActivity.java file uses dbHelper object and methods to display book records in a list view and perform CRUD operations.
- The Exercise is to create an application to store books record in SQLite database and apply CRUD operations.
Test your knowledge on working with SQLite Database in Android with this quiz! Learn about the basics of SQLite, the SQLiteOpenHelper and SQLiteDatabase classes, and how to perform CRUD operations such as create, update, delete, and select. See how well you understand the dbHelper.java and MainActivity.java files, which contain methods for database operations and displaying records. Challenge yourself to create an application that stores book records in a SQLite database and apply CRUD operations. Put your Android SQLite skills to the test with this engaging quiz!
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