Question

I have an SQLite question which essentially boils down to the following problem.

id | key | data
1  |   A |  x
2  |   A |  x
3  |   B |  x
4  |   B |  x
5  |   A |  x
6  |   A |  x

New data is appended to the end of the table with an auto-incremented id.

Now, I want to create a query which returns the latest row for each key, like this:

id | key | data
4  |   B |  x
6  |   A |  x

I’ve tried some different queries but I have been unsuccessful. How do you select only the latest rows for each “key” value in the table?

Answer 1

use this SQL-Query:

select * from tbl where id in (select max(id) from tbl group by key);