[Progress Communities] [Progress OpenEdge ABL] Forum Post: RE: Comparing Collections

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Gertjan Hendriks

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Hi Branden, As meijsberg already stated this is a possible Cartesian Product. I created a collection of database record instances and a collection of references. The Vocabulary could then look like this: Next you will set up your RuleSheet like this, where you use Filters, in order to only process the data that you actually need. Preconditions are in general faster than regular filters, especially with larger amounts of data, so I'd suggest you use those: This would then lead to this RuleTest (and results): I hope this answers your question. -Gertjan

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