17.00 - Example: HELP COLUMN for Fully Qualified Columns - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
Release Date
September 2020
Content Type
Programming Reference
Publication ID
B035-1144-170K
Language
English (United States)

The following query requests information about particular columns in the employee and department tables (note that each column reference is fully qualified with its table name).

     HELP COLUMN employee.name, employee.dept_no, department.dept_no 
     FROM employee, department;

The return from the preceding query lists each column in the order in which it was specified; therefore, the first dept_no column listed is for the employee table, the second is for the department table.

     Column Name   Type    Nullable 
     -----------   ----    -------- 
     Name           CV       N 
     DeptNo         I2       Y 
     DeptNo         I2       N