Principals and Methods of Data Cleansing for Removing Erroneous Data From Database.

Cleansing data from impurities is an integral part of data processing and maintenance. In order to fulfill the requirement it demands certain kinds of technological methods to improve the quality of data, to provide the Healthy data sources which further gives rise pure and nourished data which can be more efficient then the preliminary data . This paper includes a research work as well as field work from various location and studies of data cleansing problems, approaches and methods.