RE: Datediff function

2009-09-17 Thread Gavin Towey
Cc: mysql@lists.mysql.com Subject: Re: Datediff function Gavin Towey wrote: > Hi John, > > You can't use aggregate function in the WHERE clause, because they aren't > evaluated until after the WHERE clause is applied. > > Wouldn't it be much easier to simply keep a

RE: Datediff function

2009-09-17 Thread Jerry Schwartz
>-Original Message- >From: Gavin Towey [mailto:gto...@ffn.com] >Sent: Wednesday, September 16, 2009 7:34 PM >To: John Meyer; mysql@lists.mysql.com >Subject: RE: Datediff function > >Hi John, > >You can't use aggregate function in the WHERE clause, because th

Re: Datediff function

2009-09-17 Thread Shawn Green
John Meyer wrote: I'm trying to pull up a list of users who haven't tweeted in 7 or more days, and I'm trying to use this statement: SELECT USER_NAME, MAX(TWEET_CREATEDAT) FROM USERS NATURAL JOIN TWEETS WHERE DATEDIFF(NOW(),MAX(TWEET_CREATEDAT)) > 7 But it says "invali

Re: Datediff function

2009-09-16 Thread John Meyer
Gavin Towey wrote: Hi John, You can't use aggregate function in the WHERE clause, because they aren't evaluated until after the WHERE clause is applied. Wouldn't it be much easier to simply keep a last_tweet_date field updated somewhere then simply do SELECT USER_NAME FROM USERS WHERE last_tw

RE: Datediff function

2009-09-16 Thread Gavin Towey
weet_date < NOW()-INTERVAL 7 DAY; ? Regards, Gavin Towey -Original Message- From: John Meyer [mailto:johnme...@pueblocomputing.com] Sent: Wednesday, September 16, 2009 12:52 PM To: mysql@lists.mysql.com Subject: Datediff function I'm trying to pull up a list of users who haven't tw

Datediff function

2009-09-16 Thread John Meyer
I'm trying to pull up a list of users who haven't tweeted in 7 or more days, and I'm trying to use this statement: SELECT USER_NAME, MAX(TWEET_CREATEDAT) FROM USERS NATURAL JOIN TWEETS WHERE DATEDIFF(NOW(),MAX(TWEET_CREATEDAT)) > 7 GROUP BY USERS.USER_ID But it says "

Re: DATEDIFF and TIMEDIFF

2006-05-04 Thread Barry
Peter Lauri schrieb: Best groupmember, I run version 3.23.58 and need to use something similar to DATEDIFF and TIMEDIFF to calculate difference between two a timestamp and current_timestamp(). Is there any other function that is working for version 3.23.58 that do the same job? Best regards

DATEDIFF and TIMEDIFF

2006-05-03 Thread Peter Lauri
Best groupmember, I run version 3.23.58 and need to use something similar to DATEDIFF and TIMEDIFF to calculate difference between two a timestamp and current_timestamp(). Is there any other function that is working for version 3.23.58 that do the same job? Best regards, Peter Lauri -- MySQL

Re: Datediff

2005-07-07 Thread SGreen
Scott Haneda <[EMAIL PROTECTED]> wrote on 07/06/2005 08:16:41 PM: > I am using 4.0.18-standard > So I do not have `DATEDIFF`, but I need to ability to do so, anyone know > some other simple trick to get days be

Re: Datediff

2005-07-06 Thread Daniel Kasak
Scott Haneda wrote: >I am using 4.0.18-standard >So I do not have `DATEDIFF`, but I need to ability to do so, anyone know >some other simple trick to get days between two dates? > > to_days(SomeDate) - to_days(SomeOtherDate) will give you the number of days between the 2. --

Datediff

2005-07-06 Thread Scott Haneda
I am using 4.0.18-standard So I do not have `DATEDIFF`, but I need to ability to do so, anyone know some other simple trick to get days between two dates? -- - Scott HanedaTel: 415.898.2602 <h

Re: [SOLVED]DATEDIFF() question

2004-11-27 Thread Stuart Felenstein
--- Paul DuBois <[EMAIL PROTECTED]> wrote: > There's a space beteeen the function name and the > following > parenthesis. > Yes, that and not remembering I'm still on 4.0.22 :) Yeesh...sorry Paul. Switched to TO_DAYS ..no diff I guess Stuart -- MySQL General Mailing List For list archives

Re: DATEDIFF() question

2004-11-27 Thread Paul DuBois
At 5:31 -0800 11/27/04, Stuart Felenstein wrote: Does DATEDIFF only work with actual dates input i.e ('2004-12-05' Or couldn't I do : Select DATEDIFF (StartDate, EndDate) AS DaysBtwn from mytable? (StateDate,EndDate are date columns from db) I'm generating a syntax

DATEDIFF() question

2004-11-27 Thread Stuart Felenstein
Does DATEDIFF only work with actual dates input i.e ('2004-12-05' Or couldn't I do : Select DATEDIFF (StartDate, EndDate) AS DaysBtwn from mytable? (StateDate,EndDate are date columns from db) I'm generating a syntax error on this above. Stuart -- MySQL Gene

Re: DateDiff function in SqlServer ... How do it in MySql ?

2004-03-09 Thread William R. Mussatto
Michael Stassen said: > > Gabriel Alessandria wrote: > >> I am a user of Microsoft Sql Server and use very much the function >> Datediff (interval, fecha1, fecha2) to extract differences between two >> dates, in years, days, months, hours, etc >> >> I am a

Re: DateDiff function in SqlServer ... How do it in MySql ?

2004-03-09 Thread Michael Stassen
Gabriel Alessandria wrote: I am a user of Microsoft Sql Server and use very much the function Datediff (interval, fecha1, fecha2) to extract differences between two dates, in years, days, months, hours, etc I am a beginner with MySql and i can't see the way to do this function .. How

DateDiff function in SqlServer ... How do it in MySql ?

2004-03-09 Thread Gabriel Alessandria
I am a user of Microsoft Sql Server and use very much the function Datediff (interval, fecha1, fecha2) to extract differences between two dates, in years, days, months, hours, etc I am a beginner with MySql and i can't see the way to do this function .. How can I extract for example differen