On Aug 4, 2009, at 6:21 PM, Chris <dmagick@xxxxxxxxx> wrote:
Govinda wrote:
I should have given an example ..
select count(*) as record_count, date(column_name) as date_field,
'my_table' as table_name
union all
select count(*) as record_count, date(column_name) as date_field,
'my_table_2' as table_name
and end up with:
count | date | table_name
-------------------------------
5 | 2009-01-01 | table 1
10 | 2009-01-01 | table 2
Ben, Chris,
This is as far as I could get so far:
$query = "SELECT COUNT(*) AS landing_count, date
(solarLandingDateTime) AS solarLandingDate, 't7solar_landingALIAS'
AS t7solar_landing UNION ALL SELECT count(*) AS confirm_count, date
(solarAweberConfDateTime) AS solarAweberConfDate,
'aweber_7solar_confirmALIAS' AS aweber_7solar_confirm UNION ALL
SELECT count(*) AS thankyou_count, date(solarAWDateTime) AS
solarAWDate, 'aweber_7solar_awALIAS' AS aweber_7solar_aw";
$foundUniqueDateROWS = mysql_query($query) or die("query failed:
" .mysql_error());
giving this error:
query failed: Unknown column 'solarLandingDateTime' in 'field list'
but I most certainly do have a column named 'solarLandingDateTime'
in the table named 't7solar_landing'.
So I am not sure what it's unhappy.
With a union the columns have to have the same name (or alias).
Eg:
SELECT
COUNT(*) AS count,
date(solarLandingDateTime) AS unique_date,
't7solar_landingALIAS' AS origin
FROM tablename
UNION ALL
SELECT
count(*) AS count,
date(solarAweberConfDateTime) AS unique_date,
'aweber_7solar_confirmALIAS' AS origin
FROM tablename
etc
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Correction the column names will come form the first query, but they
need to be the same datatype in those columns. So if the first query
has a date datatype, the subsequent queries must have date columns in
the first position
Bastien
Sent from my iPod
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