query - An expression describing the
reselection criteria used to restrict records in the
output file. The expression can refer to any columns in the
sourceDataTable.
expression - An array of expressions
describing the data value to be displayed in the cells
of the table. The expression can refer to any column
in the sourceDataTable. The actual
value contained in the specified column could be
written in the cells, or the value could be modified
to represent other information. For example
"CURRENT/PERIODWIDTH" would create a new value derived
from the values contained in the two columns labelled
"CURRENT" and "PERIODWIDTH".
columnNames - A list of names to be used for
column headings, one for each of the corresponding expressions.