Thanks! I did not know such a function exists.
From: Nicklas Avén [mailto:nicklas.a...@jordogskog.no]
Sent: Thursday, December 23, 2010 3:31 PM
To: Satish Burnwal (sburnwal)
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Need Help in query
Hallo
This I think should work.
To get
Hallo
This I think should work.
To get the usernames by hour as you describe:
SELECT h.hour, usrlog.userid
(select generate_series(1,24) as hour) as h
inner join
usrlog
on h.hour >= usrlog.loginhr and h.hour <= usrlog.logouthr
order by h.hour, usrlog.userid;
To get the number of users per hour
I need a help in writing a query. I have data as follows:
mydb=# select * from usrlog ;
logid | userid | loginhr | logouthr
---+--+-+--
0 | sburnwal | 0 |1
1 | rickyrs | 1 |5
2 | satishbn | 1 |6
3 | tao
