You are working on a COBOL program that processes a customer database with the potential for duplicate customer IDs. How would you efficiently identify and handle duplicate customer records to ensure data accuracy?
- Implement a hash function to identify duplicate customer IDs
- Use a SORT and MERGE process to eliminate duplicates based on customer IDs
- Use a sequential search to identify and remove duplicate customer records
- Utilize a COBOL table to store unique customer IDs and compare incoming records
Using a SORT and MERGE process is an efficient way to eliminate duplicate customer records based on customer IDs, ensuring data accuracy in the customer database. It involves sorting the data based on customer IDs and merging the records to eliminate duplicates.
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