| Free-Form Syntax | (not allowed - use the - or -= operators) |
| Code | Factor 1 | Factor 2 | Result Field | Indicators | ||
|---|---|---|---|---|---|---|
| SUB (H) | Minuend | Subtrahend | Difference | + | - | Z |
If factor 1 is specified, factor 2 is subtracted from factor 1 and the difference is placed in the result field. If factor 1 is not specified, the contents of factor 2 are subtracted from the contents of the result field.
Factor 1 and factor 2 must be numeric, and each can contain one of: an array, array element, field, figurative constant, literal, named constant, subfield, or table name.
The result field must be numeric, and can contain one of: an array, array element, subfield, or table name.
For rules for the SUB operation, see Arithmetic Operations.
See Figure 172 for examples of the SUB operation.