
Database have been migrated from old to new one as per application requirement with additional columns and tables.And hence has to be validated that the migrated data is correct by creatng a script to run written in java. how to compare 2 columns(different col_name) in 2 different databases placed at different server and display output( in excel format) using JAVA. if matched, return TRUE else display unmatched with column id,column_name,table name. Please help me out.