book
                        
Article ID: KB0078026
                        
                    
                    
                        calendar_today
                        
Updated On: 
                    
                 
                
                        
                            
Description
                        
                        
                            When converting data using Conversion functions, a null value for a numeric field is converted to:
- TOSTRING — Converted to a NULL (as expected)
- TOBOOLEAN — Converted to FALSE
- TODATETIME — Converted to 01/01/01 00:00:00
- All numeric conversion functions — Converted to a 0 (zero)
Where possible, use the ISNULL function instead.
For additional information, see the following in the TIBCO Scribe® Online Help: 
TIBCO Scribe® Online Functions
                         
                     
                    
                    
                    
                    
                    
                        
                            
                                
Issue/Introduction
                            
                            
                                Results for different functions when converting Null values for a numeric field.