Internal use only. The SQL::Query::GroupBy object describes the GROUP BY and HAVING expressions of a SELECT statement. The GROUP BY clause contains an optional ALL keyword and a list of column expressions upon which to group the result set. The optional HAVING clause is evaluated for each aggregated row to determine whether the summary will be included in the output.
- All Logical
Read Write. If .T., the ALL keyword is included in the GROUP BY clause
- ColumnList of SQL::Query:: ColumnReference or SQL::Query:: ValueExpression objects
Read Write. Semantically, the expression must match an expression in the select list.
Read Write. An optional condition for inclusion of summarized rows in the result set.
Read Only. Returns the name of the underlying token as a type. This does NOT include the "SQL::Query::" prefix.