如何从第n行到第1行的表中选择数据集

Question

I have written a query to select set of data from nth to last record like below

select station_code from route_master where route_code = "102D" and sequence_no limit "5", "100";

• table name: route_master
• column name: route_code

Now I want to select data from nth to 1st row.

Answer 1

You can just use a plain LIMIT command along with a subquery which imposes the reverse ordering:

SELECT station_code
FROM
(
    SELECT station_code, sequence_no
    FROM route_master
    WHERE route_code = '102D'
    ORDER BY sequence_no
    LIMIT n
) t
ORDER BY sequence_no DESC;