Data cleansing or data cleaning is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database and refers to identifying incomplete, incorrect, inaccurate or irrelevant parts of the data and then replacing, modifying, or deleting the dirty or coarse data. Play list in Tamil https://goo.gl/1ZkYG6 Play list in English https://goo.gl/wGh48o Email : atozknowledge.com@gmail.com LinkedIn : https://www.linkedin.com/in/sbgowtham/ YouTube channel link www.youtube.com/atozknowledgevideos Website http://atozknowledge.com/ Technology in Tamil & English