))Hi all, currently Im stuck in an issue, hope some good PostgreSQL fellow programmer could give me a hand with it. This is my table... <http://postgresql.nabble.com/file/n5855467/screenshot.jpg> I would like to SELECT all 'time_elapse' WHERE time_type = 'Break' but only the rows that are after(below) the last(descendent) time_type = 'Start' and sum them up. So in the table above I would SELECT... * time_elapse | time_type | time_index ----------------------------+-------------+------------- 00-00-00 01:00:00.00 | Break | 2.1 00-00-00 01:00:00.00 | Break | 2.2* So totalbreak = 00-00-00 02:00:00.000 I know how to convert character varying to timestamp in order to sum them up, But I don't know how would be the syntax to select all possible 'Breaks' and sum them up (lets say the max Breaks between each 'Start' is nine). I can hardly imagine a way to do that, so I would like to ask for suggestions. Thanks Advanced. -- View this message in context: http://postgresql.nabble.com/SELECT-column-WHERE-time-type-Break-but-only-the-rows-that-are-after-below-time-type-Start-tp5855467.html Sent from the PostgreSQL - admin mailing list archive at Nabble.com. -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
