You can change the default formats that Teradata SQL uses for the following data types:
To change the data type default formats, you must create a specification for data formatting (SDF) file, and then use the tdlocaledef utility. For more information, see Teradata Vantage™ - Database Utilities, B035-1102.
Vantage uses the changes when it assigns formats to columns of new tables where the CREATE TABLE statement does not explicitly specify the column format. Columns of tables that were created prior to changing the default formats continue to use the format that Vantage assigned to the column at the time the table was created.
To view the settings of the preceding data type default formats for the current session, use the HELP SESSION statement. For more information, see HELP and SHOW in Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.