Database Dictionary Table Updates | Teradata Vantage - 17.00 - Updating Tables - Teradata Database

Teradata Vantageā„¢ - Data Dictionary

prodname
Advanced SQL Engine
Teradata Database
vrm_release
17.00
created_date
June 2020
category
Administration
Programming Reference
featnum
B035-1092-170K

When a data definition statement is processed, the system tables are updated automatically.

When a table is changed by an ALTER, CREATE, DROP, or RENAME statement, Vantage automatically increments the version count for that table. For more information about creating, changing, and dropping tables, see Teradata Vantageā„¢ - SQL Data Definition Language Detailed Topics , B035-1184 .

Most tables cannot be altered using INSERT or UPDATE, or DELETE SQL statements; however, Data Dictionary tables in the form of logs can be modified. See Data Dictionary Logs that Require Manual Purging for more information. Also, the object use count feature allows the AccessCount and LastAccessTimeStamp columns to be updated through SQL in the following dictionary tables: Dbase, TVM, TVFields, and Indexes.