15.10 - Example: HELP COLUMN with a Derived Period Column - Teradata Database

This is an example of HELP COLUMN output for the following table definition, which includes a derived period column.

     CREATE TABLE employee (
          eid INTEGER NOT NULL,
          name VARCHAR(100) NOT NULL,
          deptno INTEGER NOT NULL,
          jobstart DATE NOT NULL,
          jobend DATE NOT NULL,
          PERIOD FOR jobduration (jobstart, jobend)
          PRIMARY INDEX(eid);

Below is the HELP COLUMN output.

     HELP COLUMN employee.jobduration;