https://www.ibm.com/docs/en/db2/11.5.x?topic=compatibility-data-types
IBM PureData System for Analytics (Netezza) and Db2 data type compatibility
Netezza and Db2 databases share a large common set of data types. To learn about data type incompatibilities and how to manage them when migrating from a...
ibm puredatasystemanalytics
https://www.ibm.com/docs/en/db2/11.5.x?topic=system-validating-migration
Validating migration of IBM PureData System for Analytics (Netezza) to Db2
After migrating your Netezza system to Db2, you should validate your new system.
ibm puredatavalidatingmigration