Oracle is most useful subject to know and work in a data base field.

Retail advertising and marketing is a fast growing and ever changing field with new technologies being implemented to attract more customers. Iot is a new and effective technology that can be used in marketing.Beacon are small radio transmitter which are used to transfer data and send notifications to the respected devices which are connected to it.Beacons can broadcaste and receive signals in a short distance range.So by using this technology we can transfer the shopping mall details,offers of products to the customer who ever pass through a mall.He will get notifications in mobile phone as a popup messages so that they will go through it and can shop easily which saves time and also money .