MySQL "Or" Condition

Question

Check out this MySQL Query and then I'll show you what I really want it to do...

mysql_query("
SELECT * FROM Drinks WHERE
    email='$Email'
    AND date='$Date_Today'
    OR date='$Date_Yesterday'
    OR date='$Date_TwoDaysAgo'
    OR date='$Date_ThreeDaysAgo'
    OR date='$Date_FourDaysAgo'
    OR date='$Date_FiveDaysAgo'
    OR date='$Date_SixDaysAgo'
    OR date='$Date_SevenDaysAgo'");

The problem with it is that I want it to always match the email. In this case (for example) if the date equals $Date_SixDaysAgo then it will be selected from the query even if $Email doesn't equal the email column.

So, in short, I want the email to always equal the email column, and if the query pulls a date that equals $Daye_TwoDaysAgo or $Date_ThreeDaysAgo etc.. but doesn't equal the email then don't pull it.

I guess my query would look kind of like this, but I'm pretty sure it won't work..

mysql_query("
    SELECT * FROM Drinks WHERE
    email='$Email'
    AND date='$Date_Today
    || $Date_Yesterday
    || $Date_TwoDaysAgo
    || $Date_ThreeDaysAgo
    || $Date_FourDaysAgo
    || $Date_FiveDaysAgo
    || $Date_SixDaysAgo
    || $Date_SevenDaysAgo'");

Maxim Krizhanovsky · Accepted Answer · 2022-11-30T11:17:33.110

Use parentheses to group the OR statements.

mysql_query("SELECT * FROM Drinks WHERE email='$Email' AND (date='$Date_Today' OR date='$Date_Yesterday' OR date='$Date_TwoDaysAgo' OR date='$Date_ThreeDaysAgo' OR date='$Date_FourDaysAgo' OR date='$Date_FiveDaysAgo' OR date='$Date_SixDaysAgo' OR date='$Date_SevenDaysAgo')");

You can also use IN

mysql_query("SELECT * FROM Drinks WHERE email='$Email' AND date IN ('$Date_Today','$Date_Yesterday','$Date_TwoDaysAgo','$Date_ThreeDaysAgo','$Date_FourDaysAgo','$Date_FiveDaysAgo','$Date_SixDaysAgo','$Date_SevenDaysAgo')");

score 10 · Answer 2 · answered Dec 22 '11 at 13:17

Use brackets:

mysql_query("SELECT * FROM Drinks WHERE email='$Email' AND 
    (date='$Date_Today' 
     OR date='$Date_Yesterday' 
     OR date='$Date_TwoDaysAgo' 
     OR date='$Date_ThreeDaysAgo' 
     OR date='$Date_FourDaysAgo' 
     OR date='$Date_FiveDaysAgo' 
     OR date='$Date_SixDaysAgo' 
     OR date='$Date_SevenDaysAgo'
    )
");

But you should alsos have a look at the IN operator. So you can say ´date IN ('$date1','$date2',...)`

But if you have always a set of consecutive days why don't you do the following for the date part

date <= $Date_Today AND date >= $Date_SevenDaysAgo

Or possibly use the BETWEEN operator. – liquorvicar Dec 22 '11 at 14:00 — liquorvicar, Dec 22 '11 at 14:00

score 4 · Answer 3 · edited May 23 '17 at 12:33

Your question is about the operator precedences in mysql and Alex has shown you how to "override" the precedence with parentheses.

But on a side note, if your column date is of the type Date you can use MySQL's date and time functions to fetch the records of the last seven days, like e.g.

SELECT
  *
FROM
  Drinks
WHERE
  email='$Email'
  AND date >= Now()-Interval 7 day

(or maybe Curdate() instead of Now())

score 0 · Answer 4 · answered Dec 22 '11 at 13:18

Wrap your AND logic in parenthesis, like this:

mysql_query("SELECT * FROM Drinks WHERE email='$Email' AND (date='$Date_Today' OR date='$Date_Yesterday' OR date='$Date_TwoDaysAgo' OR date='$Date_ThreeDaysAgo' OR date='$Date_FourDaysAgo' OR date='$Date_FiveDaysAgo' OR date='$Date_SixDaysAgo' OR date='$Date_SevenDaysAgo')");

score -4 · Answer 5 · answered Dec 22 '11 at 13:31

-4

try this

mysql_query("
SELECT * FROM Drinks WHERE
    email='$Email'
    AND date='$Date_Today'
    OR date='$Date_Yesterday', '$Date_TwoDaysAgo', '$Date_ThreeDaysAgo', '$Date_FourDaysAgo', '$Date_FiveDaysAgo', '$Date_SixDaysAgo', '$Date_SevenDaysAgo'"     
   );

my be like this

 OR date='$Date_Yesterday' oR '$Date_TwoDaysAgo'.........

answered Dec 22 '11 at 13:31

shoaib akhunzada

45
2

4

Have you considered deleting this answer? You would get back your lost reputation. – Jose Manuel Abarca Rodríguez May 13 '16 at 19:57

MySQL "Or" Condition

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