Table Size and Maximum Number of Columns Per Table - Analytics Database - Teradata Vantage

SQL Data Definition Language Detailed Topics

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-07-11
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B035-1184
lifecycle
latest
Product Category
Teradata Vantage™

A CREATE TABLE statement can define up to 2,048 columns.

A base table can have a maximum of 32 LOB columns. This limit includes both predefined LOB columns and LOB UDT, Period, and Geospatial columns. A LOB UDT column counts as 1 LOB column even if the type is a structured UDT that has multiple LOB, Period, or Geospatial attributes.

BLOB, CLOB, Period, and Geospatial columns cannot be a component of any index. Unless at least 1 non-LOB column is constrained as a PRIMARY KEY or as UNIQUE when a primary index, primary AMP index, or no primary index is not explicitly specified, the first column defined for the table cannot have a BLOB, CLOB, Period, or Geospatial data type. This restriction is enforced because, for this particular set of circumstances, Vantage assigns the first column specified in a table definition to be the primary index.