This will return all records, not a selection
CODE
select * from mytable
-- where c1 = 2 (commented out)
where c1 = 11
-- where c1 = 2 (commented out)
where c1 = 11
This query is ignored completely, nothing is output
CODE
-- query to select all records
-- test of comments
select * from mytabl
-- test of comments
select * from mytabl