How to format date in Query Statement Mysql? - php

Question

I'm using php with Mysql and I need to run a specific query when user selects month and year in a date_field.
This query returns all records created by the month/year selected by user and I don't want relate days in a clause where inside the select.
Since I need only records from month/year select, is there any ways how can I define inside the select only month/year?
Here is my Mysql statement with variable selected by user
There are two tables related with inner join so I can 'grab' records with Date:
$quer_mesano = "Select b.name AS Canal
from canal_canalvenda b
inner join meta_meta c On c.canal_canalvenda_id_c = b.id
And c.deleted = 0
where c.periodo = '$month_year' //Here is the date value I just need to put in month/year
And b.deleted = 0
Group by Canal order by 1";
Can any one help me?

Answer 1

This is very easy. Use DATE_FORMAT. Just change the Sql statement like this:
$quer_mesano = "Select b.name AS Canal
from canal_canalvenda b
inner join meta_meta c On c.canal_canalvenda_id_c = b.id
And c.deleted = 0
where DATE_FORMAT( c.periodo, '%Y-%m' ) = '$month_year' //Just put DATE_FORMAT
And b.deleted = 0
Group by Canal order by 1";

Answer 2

DATE_FORMAT() you can use as shown below
$quer_mesano = "Select b.name AS Canal
from canal_canalvenda b
inner join meta_meta c On c.canal_canalvenda_id_c = b.id
And c.deleted = 0
where DATE_FORMAT( c.periodo, '%Y/%m' ) = '$month_year'
And b.deleted = 0
Group by Canal order by 1";
For month you have different types -
%M Month name
%m Month, numeric (00-12)
and for year -
%Y Year, four digits
%y Year, two digits

Answer 3

I convert the month year to YYYY-MM formate where it can be compared with the db.
$quer_mesano = "Select b.name AS Canal
from canal_canalvenda b
inner join meta_meta c On c.canal_canalvenda_id_c = b.id
And c.deleted = 0
where DATE_FORMAT( c.periodo, '%Y-%m' ) = '" . date("Y-m", strtotime($month_year)) . "' //Here is the date value I just need to put in month/year
And b.deleted = 0
Group by Canal order by 1";