SelectOrderByDescribes one element of the ORDER BY clause of a query.
columnIndexExprThe column index expression. This can be a column index number (1 meaning
the first column of the select list) or a parameter (the parameter is a
number representing the column index number).
descendingIf the column should be sorted descending.
expressionThe order by expression.
nullsFirstIf NULL should be appear first.
nullsLastIf NULL should be appear at the end.
| ||||||||||||||||||