大于或等于日期

Question

I have a table that has a field called date1.

When I look at the table in Access GUI datasheet view, I can see the dates are "correct in that date1 runs from October 1st 2013 to today, June 19th 2014. When I look at table1 in design view I can see that date1 is formatted as m/d/yyyy.

So when I ran this query I expected to see results only for April 1st 2014 till today. But instead I see results going back to 2013.

SELECT *
FROM someTable
WHERE ((([someTable].medium1)='Direct'))
OR ((([someTable].medium1)='Paid Search') 
AND (([someTable].date1)>=#4/1/2014#));

I tried removing the # too. I only added those after doing some Google searching.

Can anyone spot why my query is returning results where date1 is less than April 1st 2014?

Answer 1

I think your OR is throwing off results.

Is the date inclusive of the other criteria? (meaning all values should be after that date? if so the where clause is off.

SELECT *
FROM someTable
WHERE ([someTable].medium1 = 'Direct' OR [someTable].medium1 = 'Paid Search')
AND   ([someTable].date1)>=#4/1/2014#);

Or...

SELECT *
FROM someTable
WHERE [someTable].medium1 in ('Direct', 'Paid Search')  
 AND  [someTable].date1 >= #4/1/2014#;

or...

SELECT *
FROM someTable
WHERE ([someTable].medium1='Direct' OR [someTable].medium1='Paid Search')
AND   [someTable].date1>=#4/1/2014#;

Answer 2

The data in the view depends of the field format. When the query is launched, the data is returned "as-is. You have to ensure the date format by using the format function.

Use this query instead:

select *
from someTable
where someTable.date1 between format("04/01/2014","mm/dd/yyyy") and now()
and someTable.medium1 in ('Direct','Paid Search')