Online Database Duplication Cleansing

I need help to sanitize my online database to eliminate duplicate entries. My primary data source is an online database which has become cluttered with repetitive information. This hampers the overall efficiency and creates error in my outputs. I urgently require a skilled data entry expert with a strong competency in data cleaning, in particular, the elimination of duplicate entries. Your role will involve systematically reviewing the database, identifying duplicates and then removing or merging this data. Familiarity with online databases and previous experience in data cleaning is a necessity for this task.