[ Version ( since = "5.0" ) ]
public bool add_data (DataPivotAggregate aggregate_type, string field, string? alias) throws Error
Specifies that field has to be included in the analysis.
field is a field specification with the following accepted syntaxes: <itemizedlist> <listitem><para>a
column name in the source data model (see <link linkend="gda-data-model-get-column-index">
get_column_index</link>); or</para></listitem> <
listitem><para>an SQL expression involving a column name in the source data model, for examples: <programlisting> price
firstname || ' ' || lastname nb BETWEEN 5 AND 10</programlisting> </para></listitem> </itemizedlist>
It is also possible to specify several fields to be added, while separating them by a comma (in effect still forming a valid SQL syntax).
| this |
a DataPivot object |
| aggregate_type |
the type of aggregate operation to perform |
| field |
the field description, see below |
| alias |
the field alias, or null |
|
true if no error occurred |