For additional expressions involving checks for nulls, see:
- COALESCE Expression
- NULLIF Expression
- ZEROIFNULL
- Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144
- Teradata Vantage™ - Database Utilities , B035-1102
- Teradata Vantage™ Data Types and Literals, B035-1143