Use 'CREATE OR REPLACE TABLE' to create a new table with the updated customer information, as it allows for schema changes and ensures the latest data is always available.

Use 'INSERT OVERWRITE' to overwrite the existing customer data with the new information, as it preserves the table schema and efficiently updates the data without additional storage costs.

Use a combination of 'CREATE OR REPLACE TABLE' and 'INSERT OVERWRITE' to first create a backup of the existing table and then update it with new data, ensuring data safety and integrity.

Neither 'CREATE OR REPLACE TABLE' nor 'INSERT OVERWRITE' is suitable for this scenario; instead, use 'MERGE INTO' to update the customer database, as it provides more control over the data update process.