![]() ![]() It automatically manages the creation and updation of the database. Database Helper Class – Helper class For managing all the operations related to the database, An class of helper has given and is called SQLiteOpenHelper. A method calling of Cursor class is called rawQuery() which returns a resultset with cursor pointing to the table.The rawQuery() accepts an SQL SELECT statement as an input.Ĭursor resultset = mydatabase.rawQuery(“SELECT * FROM Employee”, null) resultset.moveToFirst() ĥ. Database Fetching – An object of the Cursor class is used to fetches the data from the database. Mydatabase.execSQL(“INSERT INTO Tutorials VALUES(‘ABC’, ‘123’) ”) Ĥ. Mydatabase.execSQL(“CREATE TABLE Tutorials(Admin_name VARCHAR, Password VARCHAR) ”) The execSQL () method is used not only to insert a data, but also to update or modify the existing data in database, using bind arguments. Database Insertion – This method is defined in SQLiteDatabase class and the execSQL() method is used to insert the data into table. SQLiteDatabse database = openOrCreateDatabase (“database_name”, MODE_PRIVATE, null) ģ. Database Creation – The openOrCreateDatabase() method is called for creating a database with your database name and mode as a parameter.This method returns an instance of SQLite database. Database Package – is main package that contains the classes to manage your own databasesĢ. Useful Resources : Top 25 Android Interview Questions and Answers SQLite Databaseġ. To use the SQLite database, the SQLiteOpenHelper class is used which provides various functionality.SQLite database is embedded in every Android device.It stores data to a text file on a device and supports all the relational database features.Android does not require a setup procedure or administration of the database using an SQLite database.Have you wondered why SQLite in Android? SQLite in Android REAL – It is similar to Double in Java. ![]() It has methods to create, delete, execute SQL commands and perform other common database management tasks. SQLite reads and writes directly to ordinary disk files. SQLite does not have a separate server process. It supports standard relational database features like SQL syntax, prepared statement, transactions, etc. In the series of Android tutorials, this part of the tutorial describes about an Android SQLite Database . ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |