This document provides an overview of SQLite and how it can be used with Cordova. SQLite is a self-contained, zero-configuration SQL database engine that stores a complete database in a single disk file. A Cordova plugin allows accessing SQLite databases on Android and iOS. Transactions provide ACID compliance when accessing the database from multiple processes. The document demonstrates how to open and close a database connection, create/insert/update/delete records in a table, and delete a database or table.

1. CORDOVA TRAINING
SESSION: 9 – SQLITE + CORDOVA

2. INTRODUCTION
 SQLite is a software library that implements a self-contained, server less, zero-
configuration, transactional SQL database engine.
 SQLite is the most widely deployed SQL database engine in the world.
 It is the one database, which is zero-configured, that means like other database you do
not need to configure it in your system.

3. FEATURES OF SQLITE
 SQLite does not require a separate server process or system to operate. A complete
SQLite database is stored in a single cross-platform disk file.
 SQLite comes with zero-configuration, which means no setup or administration is
required.
 SQLite transactions are fully ACID-compliant, allowing safe access from multiple
processes or threads.
 SQLite supports most of the query language features found in the SQL92 (SQL2)
standard.

4. FEATURES OF SQLITE
 SQLite does not require a separate server process or system to operate.
 SQLite comes with zero-configuration, which means no setup or administration is
required.
 A complete SQLite database is stored in a single cross-platform disk file.
 SQLite transactions are fully ACID-compliant, allowing safe access from multiple
processes or threads.
 SQLite supports most of the query language features found in the SQL92 (SQL2)
standard.

5. SQLITE PLUGIN
 Cordova plugin for Android and iOS is available.
 The CLI / Command Line Interface statement for adding a plugin is:
 cordova plugin add cordova-sqlite-storage

6. OPENING A CONNECTION
 To open a database connection, we can use the openDatabase method.
 var db = window.sqlitePlugin.openDatabase(
{name: 'my.db', location: default'},
successCallback,
errorCallBack
);

7. OPENING A CONNECTION
 The location can be:
 default : Library/Local Database subdirectory
 Library : Library subdirectory
 Documents : Documents subdirectory

8. CLOSING A CONNECTION
 To close a database connection, we can use the close method.
 This will invalidate all handle access handle objects for the database that is closed.
 db.close(
successCallback,
errorCallback
);

9. DELETE A DATABASE
 To delete a database, we can use the deleteDatabase method.
 window.sqlitePlugin.deleteDatabase(
{name: 'my.db', location: 'default'},
successCallback,
errorCallback
);

10. TRANSACTIONS
 SQLITE supports the concept of transactions and it uses BEGIN and COMMIT or
ROLLBACK to keep the transactions failure-safe.
 In case of an error, all changes in a sql batch are automatically discarded using
ROLLBACK.
 db.transaction(function(trans) {
// Statements
});

11. CREATE A TABLE
 myDB.transaction(function(transaction) {
transaction.executeSql(
'CREATE TABLE IF NOT EXISTS phonegap_pro (id integer primary key, title
text, desc text)',
[],
function(tx, result) { alert("Table created successfully"); },
function(error) { alert("Error occurred while creating the table.");
});
});

12. INSERT A RECORD
var title="sundaravel"; var desc="phonegap freelancer";
myDB.transaction(function(transaction) {
var executeQuery = "INSERT INTO phonegap_pro (title, desc) VALUES (?,?)";
transaction.executeSql(
executeQuery,
[title,desc],

13. INSERT A RECORD
function(tx, result) {alert('Inserted');},
function(error){alert('Error occurred');
});
});

14. GETTING RECORDS
 myDB.transaction(function(transaction) {
transaction.executeSql('SELECT * FROM phonegap_pro', [], function (tx, results) {
var len = results.rows.length, i;
$("#rowCount").append(len);

15. GETTING RECORDS
for (i = 0; i < len; i++){
$("#TableData").append("<tr><td>"+results.rows.item(i).id+"</td><td>"+result
s.rows.item(i).title+"</td><td>"+results.rows.item(i).desc+"</td></tr>");
}
}, null);
});

16. UPDATE RECORDS
$("#update").click(function(){
var id=$("#id").text();
var title=$("#title").val();
var desc=$("#desc").val()
myDB.transaction(function(transaction) {
var executeQuery = "UPDATE phonegap_pro SET title=?, desc=? WHERE id=?";

17. UPDATE RECORDS
transaction.executeSql(executeQuery, [title,desc,id],
//On Success
function(tx, result) {alert('Updated successfully');},
//On Error
function(error){alert('Something went Wrong');});
});
});

18. DELETE RECORDS
myDB.transaction(function(transaction) {
var executeQuery = "DELETE FROM phonegap_pro where id=?";
transaction.executeSql(executeQuery, [id],
function(tx, result) {alert('Delete successfully');},
function(error){alert('Something went Wrong');
});
});

19. DELETE A TABLE
 myDB.transaction(function(transaction) {
var executeQuery = "DROP TABLE IF EXISTS phonegap_pro";
transaction.executeSql(
executeQuery, [],
function(tx, result) {alert('Table deleted successfully.');},
function(error){alert('Error occurred while droping the table.');
);
});

20. THANK YOU