Netezza do not have primary or unique key. You can insert the duplicate records in the table. There are no constraints to ensure uniqueness or primary key, but if you have a table and have loaded data twice, then you can de-duplicate in several ways. Below methods explain you how to identify and Remove Netezza Duplicate Records Read: Netezza Pivot Rows to Column with Example Netezza Primary Key Constraint and Syntax 1. Use Intermediate and DISTINCT Keyword You can remove the Netezza duplicate records by creating another table using DISTINCT…