Field help (APSFLDPOS)

When the criterion field is a string of characters, it is possible to define the aggregation on a sub-string of characters by defining the position of the first character retained (1=start of the string) and the length.

For example :

• if it is necessary to aggregate the total of the first two characters of a post code of 5 characters, it is necessary to give position 1 and length 2.
• if wanting to structure the aggregate of the last three characters of a code of 8 characters, it is necessary to give position 6 and length 3.