ScalarQueryProducersCount Method | 
| Name | Description | |
|---|---|---|
| Count(DynamicQuery) | 
            Creates a scalar query over the specified query and aggregates the first field in the projection of the query. Semantically equal to CountRow
              | |
| Count(QuerySpec, IEntityFieldCore) | 
            Creates a scalar query over the specified query and aggregates the field specified with the Count() aggregate function.
              | |
| Count(QuerySpec, IExpression) | 
            Creates a scalar query over the specified query and aggregates the expression specified with the Count() aggregate function.
              |