Question

I need to make a query that gets fields that corresponds that month for each month of each year

something like this:

                      field 1                                field 2 

       count_of_fields_that_corresponds_this_month, same_fields_but_with_value_true
       --------------------------------------------|--------------------------------
january                                            |
       --------------------------------------------|-------------------------------
february                                           |
       --------------------------------------------|--------------------------------
march                                              |
       --------------------------------------------|--------------------------------
april                                              |
       --------------------------------------------|--------------------------------
etc...                                             |

in this example i have 2 fields that i need to fill in the table, but in reality i have many more, but i don’t know how to get that fields for each month in one query, i have tried to make the same thing but with many queries, and i think its a bad practice, so can you advice me how to do this? or what functions i need to use in mysql?

i want to take field1, field2, field3, etc…. for each month, and if is possible also for each year, thank you very much.

$this->db->query("SELECT count(*) AS count FROM `simple` WHERE `ochistka` = 'somevalue' AND MONTH(`date`) = 01");
$this->db->query("SELECT count(*) AS count FROM `simple` WHERE `ochistka` = 'somevalue' AND MONTH(`date`) = 01 AND `prime4anie` = 'somevalue'");

so in this queries i am getting that fields, but only for one month, how can i improve it and make them query for each month in one shot(query)?

Answer 1

SELECT YEAR(datefield), MONTH(datefield), COUNT(field1), COUNT(field2)
FROM table
GROUP BY YEAR(datefield), MONTH(datefield)

put your own field and table names