Problem with LEFT JOIN

[Lisi]

I have a page with many ads that stores both the number of times an ad is displayed and how many times it gets clicked. These are stored in two different tables (since different information is stored for each) but both have identical name columns. I am trying to display both # times displayed and # times clicked in the same table in an admin page.

Here is my query to find ads that were clicked on today:
SELECT ads_displayrate.name, SUM(ads_displayrate.count) as display, SUM( IF( ads_clickrate.date IS NULL, 0, 1 ) ) as click FROM ads_displayrate LEFT JOIN ads_clickrate ON ads_displayrate.name = ads_clickrate.name AND YEAR(ads_displayrate.date) = '2003' AND MONTH(ads_displayrate.date) = '01' AND DAYOFMONTH(ads_displayrate.date) = '19' GROUP BY ads_displayrate.name ORDER BY ads_displayrate.name

This works for clicks, but no matter what date I put in it only shows displays for the whole month - not the selected day. Also, if I use the following query to find clicks for the whole month

SELECT ads_displayrate.name, SUM(ads_displayrate.count) as display, SUM( IF( ads_clickrate.date IS NULL, 0, 1 ) ) as click FROM ads_displayrate LEFT JOIN ads_clickrate ON ads_displayrate.name = ads_clickrate.name AND YEAR(ads_displayrate.date) = '2003' AND MONTH(ads_displayrate.date) = '01' GROUP BY ads_displayrate.name ORDER BY ads_displayrate.name

it doubles the number from what it should be.

What am I doing wrong?

Thanks in advance,

-Lisi


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