Hashing Questions Medium
Hashing helps in duplicate detection by converting data into a unique hash value. When a new data item is received, it is hashed and compared with the existing hash values in the database. If a match is found, it indicates that the data item is a duplicate. This process is efficient because comparing hash values is faster than comparing the actual data. Additionally, hashing ensures that even a small change in the data will result in a different hash value, making it highly unlikely for duplicates to have the same hash. Therefore, hashing is an effective technique for quickly identifying and eliminating duplicate data.