13: 978-0-12-381479-1

Robust data loading process a challenge in database systems because the input data are often dirty. In many cases, an input record may miss multiple values; some records could be contaminated, with some data value out of range or of a different data type than expected. work out an automated data cleaning and loading the erroneous data will be marked and contaminated data will not be mistakenly inserted into the database during data loading.

Third Edition DATA MINING Concepts and Techniques Robust data loading poses a challenge in database systems because the input data are often dirty. In many cases, an input record may miss multiple values; some records could be contaminated, with some data values out of range or of a different data type than expected. Work out an automated data cleaning and loading algorithm so that the erroneous data will be marked and contaminated data will not be mistakenly inserted into the database during data loading