Class SqlCountAggFunction

  • All Implemented Interfaces:
    Context, Wrapper
    Direct Known Subclasses:

    public class SqlCountAggFunction
    extends SqlAggFunction
    Definition of the SQL COUNT aggregation function.

    COUNT is an aggregator which returns the number of rows which have gone into it. With one argument (or more), it returns the number of rows for which that argument (or all) is not null.