Re: newbie: how to return one iteration *per unique date (DAY!)* in a timestamp column?

From: Date: Wed, 05 Aug 2009 22:26:28 +0000
Subject: Re: newbie: how to return one iteration *per unique date (DAY!)* in a timestamp column?
References: 1 2 3 4 5 6 7 8 9  Groups: php.db 
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Ford, Mike wrote:
-----Original Message----- From: Govinda [mailto:govinda.webdnatalk@gmail.com] Sent: 05 August 2009 01:41
Taking this: SELECT count(*) AS CountUniqueDatesInMyTbl, date(solarAWDateTime) AS uniqueDate, 'aweber_7solar_aw' AS tableAlias FROM aweber_7solar_aw GROUP BY DATE(solarAWDateTime)
Just one other tiny point of style here: having given the expression date(solarAWDateTime) the alias uniqueDate, you should probably use that alias to refer to the same thing elsewhere in your query, such as in the GROUP BY column. So: SELECT count(*) AS CountUniqueDatesInMyTbl, 
       date(solarAWDateTime) AS uniqueDate,
       'aweber_7solar_aw' AS tableAlias
FROM aweber_7solar_aw GROUP BY uniqueDate;
That's a mysqlism :( It's not portable to other db's (apparently it's not part of the sql-spec). -- Postgresql & php tutorials http://www.designmagick.com/

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