Constants
The following types of constants can be used in calculations:
1. Number (integer or floating point), for example, 3 or 5.6.
2. String (must be enclosed in apostrophe), for example ‘CLOSED’ or ‘Balance must be positive’.
3. Date (in dd/mm/yy format), for example 05/12/98.
4. Date/Time (in dd/mm/yy HH:mm format), for example 05/12/98 17:05.
5. Duration (in #w#dHH:mm, where # stands for any digit, HH – for hours and mm - for minutes), for example, 2w3d10:45.
6. UNDEFINED, for example Loan.Item = UNDEFINED