MySQL - BETWEEN clause not working properly with DATETIME

Question

I have a database where it is stored the date of creation of the record. The problem is that when I try to SELECT all records within 1 year, I get no rows returned.

I created a SQLFiddle to illustrate what I have and what I'm trying to do: http://sqlfiddle.com/#!9/33a32b/8

SELECT aux.description, DATE_FORMAT(aux.date_creation, '%d/%m/%Y às %H:%i') AS `formatted_date`
  FROM aux
  WHERE aux.date_creation BETWEEN 'CURDATE() - INTERVAL 1 YEAR' AND 'CURDATE()'
  ORDER BY `formatted_date` DESC;

You should put your code also here. SQLFiddle is not always online. — Jorge Campos
– Jorge Campos, Commented Mar 23, 2017 at 1:02

Gordon Linoff · Accepted Answer · 2017-03-23 01:02:39Z

2

This is your query:

SELECT aux.description, DATE_FORMAT(aux.date_creation, '%d/%m/%Y às %H:%i') AS `formatted_date`
FROM aux
WHERE aux.date_creation BETWEEN 'CURDATE() - INTERVAL 1 YEAR' AND 'CURDATE()'
ORDER BY `formatted_date` DESC;

The single quotes are incorrect. You have a string constant, not a date expression. Presumably, date_creation is in the past, so all you need is:

SELECT aux.description,
       DATE_FORMAT(aux.date_creation, '%d/%m/%Y às %H:%i') AS formatted_date
FROM aux
WHERE aux.date_creation >= CURDATE() - INTERVAL 1 YEAR
ORDER BY aux.date_creation DESC;

Note that I also changed the ORDER BY. Normally, one wants Jan 2nd to follow Jan 1st, not Feb 1st.

answered Mar 23, 2017 at 1:02

Gordon Linoff

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1 Comment

Minoru Over a year ago

I was using the functions within the single quotes and was getting no problem. That just happened with this single query. Weird stuff. Thanks a lot, man!

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