ydn-db - how to check if database exists at all

Question

I'm making a phonegap app and using ydn-db there.

The problem is I don't want to do db = new ydn.db.Storage('db-name') all the time because it creates a new database. Is there a way to check if my database exists already ?

Umm...ydn-db provides a wrapper around indexeddb, websql and localstorage. In my case, I'm using websql — AdityaSaxena, Nov 22 '13 at 06:32

score 1 · Answer 1 · answered Nov 22 '13 at 06:36

you can also use to check below code.

function onDeviceReady() { var db = window.openDatabase("Database", "1.0", "PhoneGap Demo", 200000); db.transaction(populateDB, errorCB, successCB); }

// Populate the database 
//
function populateDB(tx) {
     tx.executeSql('DROP TABLE IF EXISTS DEMO');
     tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, data)');

}

ydn-db - how to check if database exists at all

1 Answers1