I'm using a PhoneGap project on XCode. I am trying to connect to a SQLite databse by using Javascript.
I have made a file "myDatabase.sqlite" in an SQLite tool. Now my question is how do I open that database in my code? Right now I'm using the following code:
var db;
var shortName = 'myDatabase';
var version = '1.0';
var displayName = 'myDatabase';
var maxSize = 65535;
db = openDatabase(shortName, version, displayName,maxSize);
db.transaction(function(transaction) {
transaction.executeSql('SELECT * FROM User;', [],
function(transaction, result) {
if (result != null && result.rows != null) {
for (var i = 0; i < result.rows.length; i++) {
var row = result.rows.item(i);
alert(row.ID);
}
}
}, errorHandler);
}, errorHandler, nullHandler);
The problem is that the database is empty because when i run it it gives the error 'No such table'. I think it created a new database named "myDatabase" and thats why it has no tables.
Does anyone know how I can open my file with all the tables in it?
Thanks!
This script will help you:
<script type="text/javascript">
function createDatabase(){
try{
if(window.openDatabase){
var shortName = 'db_xyz';
var version = '1.0';
var displayName = 'Display Information';
var maxSize = 65536; // in bytes
db = openDatabase(shortName, version, displayName, maxSize);
}
}catch(e){
alert(e);
}
}
function executeQuery($query,callback){
try{
if(window.openDatabase){
db.transaction(
function(tx){
tx.executeSql($query,[],function(tx,result){
if(typeof(callback) == "function"){
callback(result);
}else{
if(callback != undefined){
eval(callback+"(result)");
}
}
},function(tx,error){});
});
return rslt;
}
}catch(e){}
}
function createTable(){
var sql = 'drop table image';
executeQuery(sql);
var sqlC = 'CREATE TABLE image (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, name TEXT NOT NULL, image BLOB )';
executeQuery(sqlC);
}
function insertValue(){
var img = document.getElementById('image');
var sql = 'insert into image (name,image) VALUES ("sujeet","'+img+'")';
executeQuery(sql,function(results){alert(results)});
}
<input type="button" name='create' onClick="createDatabase()" value='Create Database'>
<input type="button" name='create' onClick="createTable()" value='create table'>
<input type="button" name='insert' onClick="insertValue()" value='Insert value'>
<input type="button" name='select' onClick="showTable()" value='show table'>
<input type="file" id="image" >
<div result></div>
</script>
To download the code go visit url:
http://blog.developeronhire.com/create-sqlite-table-insert-into-sqlite-table/
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