Question

I have a table that newer data starts with id=1 and increasing the id, we get to the older data, now the problem is, as new data will be added every day, and I want to show the results from new to old, there will be a problem. I want to reverse the order of the table that even after new data are added I can display the data from newer to older one.

Has anyone any clue what should I do?

Answer 1

You could hard-code the arbitrary number where the switch-over happens. Say you have 1,000 rows in there right now (so #1 is the newest, but #1001 will be the newest when it’s added):

SELECT (CASE WHEN id < 1000 THEN id * -1 ELSE id END) AS sort_order
ORDER BY sort_order DESC

Probably the better solution would be to add a timestamp column, as it’s not nice to rely on auto-generated columns for real data.

Edit

To create a new table, use the above with an insert.

INSERT INTO [new_table] (col1,col2,col3, ...)
SELECT (col1, col2, col3, ...)
FROM [old_table]
ORDER BY (CASE WHEN id < 1000 THEN id * -1 ELSE id END) DESC