MySQL select all rows from last month until (now() - 1 month), for comparative purposes
I need some help writing a MySQL query to show me rows from last month, but not the whole month, only开发者_StackOverflow up and until the same day, hour and minute as it is now(), but 1 month before.
So for example, if today is 5/19 at 5:25pm I need to select rows from midnight 12:00am 4/1 to 5:25pm of 4/19 (from the same year too of course).
Thanks!
You can get the first of the month, by calculating the last_day of the month before and add one day. It is awkward, but I think it is better than formatting a date as string and use that for calculation.
select
*
from
yourtable t
where
/* Greater or equal to the start of last month */
t.date >= DATE_ADD(LAST_DAY(DATE_SUB(NOW(), INTERVAL 2 MONTH)), INTERVAL 1 DAY) and
/* Smaller or equal than one month ago */
t.date <= DATE_SUB(NOW(), INTERVAL 1 MONTH)
Getting one month ago is easy with a single MySQL function:
SELECT DATE_SUB(NOW(), INTERVAL 1 MONTH);
or
SELECT NOW() - INTERVAL 1 MONTH;
Off the top of my head, I can't think of an elegant way to get the first day of last month in MySQL, but this will certainly work:
SELECT CONCAT(LEFT(NOW() - INTERVAL 1 MONTH,7),'-01');
Put them together and you get a query that solves your problem:
SELECT *
FROM your_table
WHERE t >= CONCAT(LEFT(NOW() - INTERVAL 1 MONTH,7),'-01')
AND t <= NOW() - INTERVAL 1 MONTH
Simple code please check
SELECT * FROM table_name WHERE created >= (NOW() - INTERVAL 1 MONTH)
This is an example of a MySQL date operation relevant to your question:
SELECT DATE_ADD( now( ) , INTERVAL -1 MONTH )
The above will return date time one month ago
So, you can use it, as follows:
SELECT *
FROM your_table
WHERE Your_Date_Column BETWEEN '2011-01-04'
AND DATE_ADD(NOW( ), INTERVAL -1 MONTH )
SELECT
*
FROM
<table_name>
WHERE
<date_field> BETWEEN DATE_SUB(NOW(), INTERVAL 1 MONTH) AND NOW();
Similarly, You can select records for 1 month, 2 months etc.
SELECT *
FROM table
WHERE date BETWEEN
ADDDATE(LAST_DAY(DATE_SUB(NOW(),INTERVAL 2 MONTH)), INTERVAL 1 DAY)
AND DATE_SUB(NOW(),INTERVAL 1 MONTH);
See the docs for info on DATE_SUB
, ADDDATE
, LAST_DAY
and other useful datetime functions.
You could use a WHERE
clause like:
WHERE DateColumn BETWEEN
CAST(date_format(date_sub(NOW(), INTERVAL 1 MONTH),'%Y-%m-01') AS date)
AND
date_sub(now(), INTERVAL 1 MONTH)
SELECT *
FROM table
WHERE myDtate BETWEEN now()
, DATE_SUB(NOW()
, INTERVAL 1 MONTH)
My solution was to avoid using NOW()
when writing sql with your programming language, and substitute with a string. The problem with NOW()
as you indicate is it includes current time. So to capture from the beginning of the query day (0 hour and minute) instead of:
r.date <= DATE_SUB(NOW(), INTERVAL 99 DAY)
I did (php):
$current_sql_date = date('Y-m-d 00:00:00');
in the sql:
$sql_x = "r.date <= DATE_SUB('$current_sql_date', INTERVAL 99 DAY)"
With that, you will be retrieving data from midnight of the given day
maybe like this - all last month DATE(recDate) BETWEEN DATE_ADD(LAST_DAY(DATE_SUB(CURDATE(), INTERVAL 2 MONTH)), INTERVAL 1 DAY) AND LAST_DAY(DATE_SUB(CURDATE(), INTERVAL 1 MONTH) )
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