I have one database in sql server in that i have one table known as master table in that i have master data. My problem is my master data has been change frequently(i mean my client give the master data in excel sheet old + new data) it is defucult to find which one is new data. so i want to design one page where we can upload the excel file and we can we can Compare Excel Sheet data with SQL Table and new data will be inserted on database.so how can i will do this. Please give some idea.
Thanks in Advance.