"David Portas" <REMOVE_BEFORE_REPLYING_dportas@acm.org> wrote:

>What is the primary key? I'll assume the key consists of (ts,
>username), in which case the folllowing should do what you want:
>
>SELECT ts, username, ... /* other columns */
> FROM YourTable AS T
> WHERE ts =
> (SELECT MAX(ts)
> FROM YourTable
> WHERE username = T.username)

Thanks

>It really helps if you include DDL with questions like this (basically
>a CREATE TABLE statement, including keys and constraints). The exact
>table structure may make a big difference to the possible solutions.

Point noted.

>The usual recommendation that you shouldn't use SELECT * in production
>code also applies.

I realise this. That was just me being lazy (although for some of my
selects I do want the entire row).

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