The A parameter sets the ID of an aggregated record to be queried for.
| Parameter | A |
| Name | Aggregated Record |
| Java setter method | ENEQuery.setAggrERecSpec() |
| .NET setter property | ENEQuery.AggrERecSpec |
| Type | <agg record ID> |
| Description | Query to obtain a single aggregated record from the MDEX Engine. |
| Object | Aggregated Record (AggrERec) |
| Dependency | An, Au (Note that A, An, and Au are all considered primary parameters and must be used together.) |
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