Column 2, column 3, column 4, first column is ID, the second column is name, the third column is surname and fourth column is marks. First column name was ID for the student and the column name is ID right, so do something like this, col 1, col 1 is ID, similarly column 1, column 2, column 3 column 4. Step 10) And as we have discussed, this table is going to contain 4 columns, one, two, three, four and for simplicity lets keep all the variables as a string. And second what we are going to do is we are going to declare our table name, so this will be a table name and let's give the name to our table as ' student_table' which will resonate perfectly with our table. So let's declare our variable which we are going to assign the database name so let's declare a variable name called database_name, we will assign the name of our database, for example, ' student.db'. Step 9) Now we will declare some variables so that we can define the names of our database. We are going to create a database or insert some data like this so id can be one two three four for example, name, surname and marks scored by the students. So our database name will be student.b and its going to contain four columns: Note: The SQLite database is not case sensitive so you can use upper cases and smaller cases together its doesn’t matter in SQLite. So for this, for example, to start with we are going to create a base like SQLite database like shown in the images below and the name of the database will be Student.db. Now let us see how we are going to create a database and what will be the name of our database and all other stuff. Step 8) Now for creating the database, first of all, we need a database name. Step 7) So we have successfully created our database helper class which extends from SQLite open helper which is the main class for handling SQLite and we have some basic methods and constructor. Step 6) And one more thing which is required to be created is a default constructor so once again click this red bulb here and just choose constructor matching super and we are going to select first of them and just create it. You are going to select both of them and click OK. You just need to click this bulb and you just need to click implement methods and there are two methods related to this class which are onCreate and onUpgrade. Step 5) Still it might show you some error because we need to create or implement some of the methods from it so you will be able to see a small bulb there. Step 4) It might show some error because we haven’t imported the classes related to this SQLite open helper so just click Alt+Enter, and just click the button called import class and its going to import this class okay. Step 3) Now below is a basic blank class and in here we want to create or extend this class using our SQLiteOpenHelper, so just write extend SQLiteOpenHelper. So go to your app folder and in the app folder go to your java folder and inside here go to the package in which your main activity and right click the package and we’re going to create a new java class. Step 2) Now once your basic app is created, what we’re going to do is we’re going to create a class for handling the SQLite database. Click next and select a blank activity next, and leave main activity as default and click finish. Step 1) So just open your Android studio, we are going to start a new Android Application and we will name our application as SQLite app for example and then click next or select you minimum sdk. Please follow the steps below in order to create database tables: In the constructor of your subclass you call the super() method of SQLiteOpenHelper. To create or update a database in your Android Application you just need to create a subclass of the SQLiteOpenHelper class. So you don’t need to install any extra libraries to use SQLite with Android It's just, You can say it saves the data in word text file and saved locally on you can say mobile device or tablet or whatever Android device you are using and Android comes with the built-in SQLite database implementation. SQLite is database which is a open source database so you can use it for free and its relational database, okay and the most important feature about SQLite database is it’s a local database so it doesn’t require any server or any ODBC or JDBC query or connection for its functionality. So lets get started and lets see some important stuff regarding SQLite on Android. how we can create a database and perform some database queries like insertion, up gradation, deletion or other queries on SQLite database using Android. This tutorial explains how you can get started with SQLite using Android. How To Create Android SQLite Database and Tables
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |