15.10 - Example: HELP COLUMN for Fully Qualified Columns - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

prodname
Teradata Database
vrm_release
15.10
created_date
December 2015
category
Programming Reference
featnum
B035-1144-151K

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