Netezza nzsql supports SQL-92 standard. Netezza data warehouse appliance supports referential integrity such as Netezza foreign key, primary key, and unique keys as part of SQL-92 standard requirement. You can create Netezza foreign key constraint while creating tables in Netezza database but it will not be enforced while loading Netezza tables. Read: Netezza nzsql command and its Usage Netezza Unique Key Constraint and Syntax Netezza Primary Key Constraint and Syntax In this post we will learn about the Netezza foreign key constraints and its syntax. Netezza Foreign Key Constraint Syntax and…