17.10 - Maximum Number of Columns in Table - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Detailed Topics

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

A base table can contain a maximum of 2,048 columns. Up to 32 columns can be defined with a LOB data type. See Rules and Restrictions for Large Object Data Types.

A maximum of 2,560 columns can be defined for a base table over its lifetime. Dropping columns does not affect this rule.

If new columns need to be added that would exceed this number, you must create a new table. You can use the SHOW TABLE statement and INSERT … SELECT statements to create and load the spin-off table.