Returns the string form of this SelectList.


The string form of this SelectList.

The SelectList format is:
CopyC#
where expression is the string form of an IExpr expression
and derived-prop-name is the name of the derived property that will
be produced.

SELECT <i>expression1</i> AS <i>derived-prop-name1</i>, <i>expression2</i> AS <i>derived-prop-name2</i>...

The string:
CopyC#
is returned if the derived property name is NumTrans and
the expression uses the COUNT function to compute the number
of transactions by the TransId field.

SELECT COUNT(TransId) AS NumTrans