For information about the syntax used to create table columns, see “CREATE TABLE” in Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.
For information about modifying, adding, or dropping table columns, see ALTER TABLE (Basic Table Parameters) and “ALTER TABLE” in Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.
For detailed information about row-level security in Teradata Database, see Teradata Vantage™ - Advanced SQL Engine Security Administration, B035-1100.