In ProAdmin, an array field is a collection of values (numerical, code, or date) that are correlated with or delimited by a date or a range of dates. Arrays fields are either:

• Effective-dated, where a single date indicates the date on and after which the value is in effect, or

• Start and stop-dated, where each value has two dates that span the time period over which the value is applicable.​

Examples:

Effective-dated array
Hourly Rate of Pay
Effective date	Value
5/15/2003	10.87
5/17/2004	11.52
5/18/2005	12.03

The rate of pay started on 5/15/2003 at $10.87 per hour. It then changed to $11.52 per hour on 5/17/2004, and then changed to $12.03 per hour on 5/18/2005.

Start and stop-dated array
Annual Compensation
Start date	Stop date	Value
1/1/2003	12/31/2003	21,945.25
1/1/2004	12/31/2004	23,455.52
1/1/2005	12/31/2005	24,624.24

Annual compensation of $21,945.25 was earned during the 2003 calendar year, $23,455.52 during the 2004 calendar year and $24,624.24 during the 2005 calendar year.

See Temporary Variables, Assignment, and Array Operators to see how array fields behave in expressions.