Creating QR code using Google Chart

How can you create QR codes? QR codes means Quick Response Code.This contains hidden details.Using as the trademark.This QR codes can be read by QR code scanner or Bar-code scanner.There are many o…

Magento execute custom query

How to magento execute custom query?In here you can execute custom query to insert,update,delete and fetch data from database with using magento existing database connection.