17.05 - Example: Changing the Security Level and Category for a Session - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

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

The user_name logs on. The resulting session has a label consisting of an unclassified level and a nato category. The first request executed for the session changes the label to a top_secret level and the category to a combination of united_states and nato.

     SET SESSION CONSTRAINT = classification_level (top_secret), 
     CONSTRAINT = classification_category  (nato, united_states);

Assume that later on, the session initiated by user_name wanted to read one of the three rows from inventory, so the user submits the following SELECT request.

     SELECT * 
     FROM inventory 
     WHERE col_1 = 1212;

The returned result set would be as follows.

Col_1	 Col_2	 Col_3   		Classification_Level  	Classification_Category
=====  ===== =====   ====================  =======================
1212	 90505	 Widgets	 3			                     '0100000000000000'XB