void query.first() - jump to the beginning of a query
void query.last() - jump to the last value in a query
boolean query.isFirst() - true if we are looking at the first row
boolean query.isLast() - true if we are looking at the last row
boolean query.next() - jump to the next row
boolean query.previous() - jump to the previous row
int findColumn(String name) - get the id of a column by name
void sort(int columnId, boolean ascending) - sort by a column
int getColumnCount() - returns the number of columns
String getColumnTypeName(int columnId) - gets the data type of a column,
	this one didn't work properly when I tested it, it would return
	NUMERIC for a field that was a varchar. There is a method called
	guessColumnType that was probably used to determine it, it guessed wrong.