16.20 - Examples - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Functions, Expressions, and Predicates

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1145-162K

Example: Returned Expression Errors for NULLIFZERO

The following expressions return an error if the value of x or expression is zero.

   6 / x
   6 / expression

On the other hand, the following expressions return null, which is not an error because there is no violation of the divide by zero rule.

   6 / NULLIFZERO(x)
   6 / NULLIFZERO(expression)

Example: Returned Request Errors for NULLIFZERO

The following request returns a null in the second column because the HCap field value for Newman is zero. In BTEQ (field mode) this appears as a ‘?’.

   SELECT empno, NULLIFZERO(hcap) 
   FROM employee 
   WHERE empno = 10019 ;