How to set SQL to find records from last sunday to this sunday (1 week)

Question

This is similar to what I have now, which is:

SELECT COUNT(author) FROM `posts` WHERE `date` >= DATE_SUB(CURDATE(), INTERVAL 1 WEEK) AND author=\'FooBar\'

Answer 1

To get the latest preceding sunday midnight, this should do it. Replace both instances of NOW() with your datetime to check another date.

SELECT DATE_SUB(DATE(NOW()), INTERVAL DAYOFWEEK(NOW())-1 DAY) latest_sun

To get the sunday one week earlier, instead use DAYOFWEEK(NOW())+6 DAY.

EDIT: That'd make your query;

SELECT COUNT(author)
FROM `posts` 
WHERE author='FooBar'
  AND `date` >= DATE_SUB(DATE(NOW()), INTERVAL DAYOFWEEK(NOW())+6 DAY)
  AND `date` <  DATE_SUB(DATE(NOW()), INTERVAL DAYOFWEEK(NOW())-1 DAY)