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Hi, I am a user postgresql. I want to update a table automatically when we reach monthend. i.e i want to update some table on 31 of every month automatically without any user attention. I want to know how to do this. If anyone knows how to do this please mail me. i will be ever thankfull to him Thank you Ebrahim __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/
Mohamed ebrahim writes: > I am a user postgresql. I want to update a table > automatically when we reach monthend. i.e i want to > update some table on 31 of every month automatically > without any user attention. Use a cron job. -- Peter Eisentraut peter_e@gmx.net http://yi.org/peter-e/
> I am a user postgresql. I want to update a table > automatically when we reach monthend. i.e i want to > update some table on 31 of every month automatically > without any user attention. I want to know how to do > this. If anyone knows how to do this please mail me. i > will be ever thankfull to him Probably the easiest way to do this is to write a script and run it from cron. For example, if your update query is in a file called $HOME/bin/monthend.sql: insert into mymonthendtable(f1, f2, f3) values(123,'03/31/2001',12345.67); your script (call it $HOME/bin/monthend.sh) might look like: #!/bin/sh psql -U postgres mydatabasename < $HOME/bin/monthend.sql then run (see "man 5 crontab" for more on cron) crontab -e and add an entry like # run at 2:15 AM on the 30th of every month 15 2 30 * * $HOME/bin/monthend.sh Hope this helps, Joe
From: "Mohamed ebrahim" <mohdebrahim@yahoo.com> > Hi, > > I am a user postgresql. I want to update a table > automatically when we reach monthend. i.e i want to > update some table on 31 of every month automatically > without any user attention. I want to know how to do > this. If anyone knows how to do this please mail me. i > will be ever thankfull to him I'm presuming that you are on some kind of unix-like system. If so, check the "cron" system (man cron, man crontab) - use this to run a script at a set time each month - the script can then update your database. This can be as simple as placing a script into /etc/cron.monthly/ on some systems (e.g. Linux Redhat) but in any case is not too complicated. PS - it is usually easier to do this early on the first day of each month (every month has a day 1, not all have a day 31). - Richard Huxton
Hi, Thanks for your valuable information. I tried the cron. i typed cron -e and entereed into the input area. but i don't know how to save the cron file. I pressed ctrl+z and came out from cron. but i edit the cron file i found nothing on it.(i.e using pico filename.) Please tell me some description how to save the file in cron and to achive this. I will be thankful to you. Ebrahim > I am a user postgresql. I want to update a table > automatically when we reach monthend. i.e i want to > update some table on 31 of every month automatically > without any user attention. I want to know how to do > this. If anyone knows how to do this please mail me. >i > will be ever thankfull to him. >Joe wrote: > >Probably the easiest way to do this is to write a >script and run it >from >cron. For example, if your update query is in a file >called >$HOME/bin/monthend.sql: > > insert into mymonthendtable(f1, f2, f3) >values(123,'03/31/2001',12345.67); > >your script (call it $HOME/bin/monthend.sh) might >look like: > > #!/bin/sh > psql -U postgres mydatabasename < >$HOME/bin/monthend.sql > >then run (see "man 5 crontab" for more on cron) > crontab -e > >and add an entry like > > # run at 2:15 AM on the 30th of every month > 15 2 30 * * $HOME/bin/monthend.sh > >Hope this helps, > >Joe > __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/
> Thanks for your valuable information. I tried the > cron. i typed > cron -e > and entereed into the input area. but i don't know how > to save the cron file. I pressed ctrl+z and came out > from cron. but i edit the cron file i found nothing on > it.(i.e using pico filename.) Please tell me some > description how to save the file in cron and to achive > this. I will be thankful to you. > Instead of "ctrl+z", press ":wq" (colon for command mode, w for write, q for quit). This assumes that vi is your default editor. Joe
> Instead of "ctrl+z", press ":wq" (colon for command mode, w for write, q for > quit). If you are still mystified, "ctrl+z" stops a process running on a terminal, so it's likely that your vi is still running idle. Type 'fg' on the same terminal to bring it back. For more details on job control, see 'info sh' and search for 'jobs'. > This assumes that vi is your default editor. Which you can change by setting your EDITOR environment variable. For example, if your shell is bash, export EDITOR="emacs -nw" will do it. --Gene
> > Thanks for your valuable information. I tried the > > cron. i typed > > cron -e > > and entereed into the input area. but i don't know how > > to save the cron file. I pressed ctrl+z and came out > > from cron. but i edit the cron file i found nothing on > > it.(i.e using pico filename.) Please tell me some > > description how to save the file in cron and to achive > > this. I will be thankful to you. > > > > Instead of "ctrl+z", press ":wq" (colon for command mode, w for write, q for > quit). This assumes that vi is your default editor. > And if you didn't know, you can set the VISUAL environment variable to change your default editor. eg.. export VISUAL=pico You can put this in your .profile to make it a default. Personally I don't like line wrapping so I turn it off like this: export VISUAL='pico -w' You can also use the 'v' command in from 'less' to edit a file.. very handy.. -Cedar