On Wed, 30 Jan 2002, lonh SENG wrote:
> Hi all,
>
> I have one table containing data as "source.txt" attached file. I
> want to create a script to clean the data and get the result as
> "result.txt" attached file.
> inbtime and inbtime1 is datetime data type.
> Anyone has an idea?
> Any help will be appreciated.
> thanks in advance
>
> Sorry. It seems to be out of the topic.
Probably belongs on pgsql-sql, but... :)
This is not at all optimized, but maybe something of the form:
select t1.card, t1.inbtime, coalesce((select min(inbtime) from t t2 where
t2.inbtime>t1.inbtime and t2.card=t1.card), t1.inbtime) from t t1;