The decrement statement allows you to decrement, or decrease, a numeric value by a specified amount.
decrement number {by numeric_expression}
• number – An integer, long, currency, variable currency, time or date field or variable that you want to decrement.
• numeric_expression – A field or variable of the same control type as the number parameter, by which number is decreased. If no numeric_expression is indicated, the default decrement value is 1. The following default values are supported for each numeric control type:
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|
Control type |
Default decrement value |
|---|---|
|
integer |
1 |
|
long |
1 |
|
currency |
1 currency unit |
|
variable currency |
1 currency unit |
|
time |
1 minute |
|
date |
1 day |