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MySQL create new column in Select to show date plus 7 days

Posted on 2009-06-28
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Last Modified: 2013-12-13
Hi,
I have a select as code view (not working!!)  to create a new result that is 7 days in advance of the current date, the format must be dd/mm/yyyy (UK style)

When using PHP to show the results it's easier :
<?php
$expiry = mktime(0, 0, 0, date("m"), date("d")+7, date("y"));
echo "".date("d/m/Y", $expiry);
?>

But I have to export directly from a page to XML so I have a choice:
!. create a SELECT to give me this date
or
2. Integrate the above in the the second code that produces the XML (see code view)
SELECT

DATE AS expiry_date
 

PHP:
 

    $expiration_date = $item->appendChild($dom->createElement('g:expiration_date')); 

 $expiration_date->appendChild($dom->createTextNode('CODE HERE???????')); 

}

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Comment
Question by:tonypearce
  • 4
6 Comments
 

Author Comment

by:tonypearce
ID: 24730710
The code below now works and shows the Epoch date? like:

expiration_date>1246748400</g:expiration_date>
$days7 = mktime(0, 0, 0, date("m"), date("d")+7, date("y"));

     $expiration_date = $item->appendChild($dom->createElement('g:expiration_date')); 

 $expiration_date->appendChild($dom->createTextNode($days7));

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0
 
LVL 17

Accepted Solution

by:
pssandhu earned 500 total points
ID: 24730716
I am not sure if this going to help you and I do not know php, so this how you will do it MySQL in a Select statement:
SELECT ADDDATE(Date, 7) from expiry_date   <-- Added 7 days
P.
0
 

Author Comment

by:tonypearce
ID: 24730721
Hi,
I don't have an existing date to work from, so I need to create it from scratch..

Thanks for your response
0
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Author Comment

by:tonypearce
ID: 24730734
This works, thie first time I have worked something out for myself......................
 $tomorrow = mktime(0, 0, 0, date("m"), date("d")+7, date("y"));

     $expiration_date = $item->appendChild($dom->createElement('g:expiration_date')); 

 $expiration_date->appendChild($dom->createTextNode(date("d/m/Y", $tomorrow)));

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0
 
LVL 5

Expert Comment

by:solutionDriver
ID: 24730737
Hi tonypearce,

you can do the date advancing and formatting purely in mySQL, like this:

SELECT DATE_FORMAT( DATE_ADD( <datefield>, INTERVAL 1 WEEK ) , '%d/%m/%Y' )
FROM <database>
WHERE <condition>

It works with mySQL fieldtypes DATE, TIME, and TIMESTAMP for <datefield>.

Instead of 'INTERVAL 1 WEEK ' you could also use 'INTERVAL 7 DAY'.

Enjoy,

  sd
0
 

Author Closing Comment

by:tonypearce
ID: 31597666
Thanks for your input, I actually did it myself.. WooHoo
0

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