SQL join with other table and adding a case

Question

This following query is telling me how many sales was at the same day. also how many new users, and credits.

This is my working query (it works great!):

SELECT Substring(purchase.`date`,1,10)                       AS `DayDate`, 
                   Sum(Cast(Substring(purchase.`item`, 12) AS UNSIGNED))     AS `Credit`,
                   Count(1)                                                  AS `Sales`,
                   (SELECT Count(*) FROM enswitch_mobile_users WHERE Date(purchase.`date`) = Substring(enswitch_mobile_users.`creation_date`,1,10))  AS `New_users`
                        FROM   (SELECT item, date 
                                    FROM enswitch_new_iphone_purchases WHERE `status`=1
                                    UNION 
                                    SELECT item, date 
                                    FROM enswitch_new_android_purchases WHERE `status`=1) AS `purchase` 
                        WHERE purchase.`date` >= :from_date AND purchase.`date` <= :to_date
                GROUP  BY `DayDate` 
                ORDER  BY `DayDate` DESC

I am searching here in 3 tables. enswitch_new_android_purchases enswitch_new_iphone_purchase they both has item, user_id, status and date columns. example for one entry:

date : 2012-08-01 16:24:30 item : xsalnx.sip.70 user_id : 1337 status : 1

Also pulling the mobile_users amount from enswitch_mobile_users (id, creation_date, mobile id, ...) and grouping with specific day date.

What I am trying to do is to add a test if the user who bought, or the new user is a tester. if so I want to ignore this data on my query.

I'm saving the testers on a table called: enswitch_testing_devices (id, name, mobile_id).

And I can join the data with enswitch_mobile_users (mobile_id column).

So far I tried to make it work but had no luck.. How can I do this query ?

Answer 1

Try below - just added a clause when you get the users - get all the users except test. Now a sample data and structure table would help. (I think you can re-write the query.)

SELECT Substring(purchase.`date`,1,10)                       AS `DayDate`, 
                   Sum(Cast(Substring(purchase.`item`, 12) AS UNSIGNED))     AS `Credit`,
                   Count(1)                                                  AS `Sales`,
                   (
                        SELECT Count(*) 
                        FROM enswitch_mobile_users 
                        WHERE 
                            Date(purchase.`date`) = Substring(enswitch_mobile_users.`creation_date`,1,10) 
                            AND enswitch_mobile_users.mobile_id NOT IN ( select mobile_id from enswitch_testing_devices WHERE 'is tester')
                    )  AS `New_users`
                        FROM   (SELECT item, date 
                                    FROM enswitch_new_iphone_purchases WHERE `status`=1
                                    UNION 
                                    SELECT item, date 
                                    FROM enswitch_new_android_purchases WHERE `status`=1) AS `purchase` 
                        WHERE purchase.`date` >= :from_date AND purchase.`date` <= :to_date
                GROUP  BY `DayDate` 
                ORDER  BY `DayDate` DESC

Answer 2

I manage to SOLVE this issue.

If any one wondered.

function search_daily_sales($from_date, $to_date ,$show_testers)
{
        // If not showing the testers
    if ($show_testers === false) 
    {
        $sql = "SELECT Substring(purchase.`date`,1,10)                            AS `DayDate`,
                        Sum(CASE WHEN td.mobile_id IS NULL 
                            THEN Cast(Substring(purchase.`item`, 12) AS UNSIGNED) 
                            ELSE '0' END)                                         AS `Credit`,
                        Sum(CASE WHEN td.mobile_id IS NULL THEN '1' ELSE '0' END) AS `Sales`,
                        (SELECT Count(*) FROM enswitch_mobile_users 
                            WHERE 
                                Date(purchase.`date`) = Substring(enswitch_mobile_users.`creation_date`,1,10)
                            AND enswitch_mobile_users.`mobile_id` NOT IN (SELECT mobile_id FROM enswitch_testing_devices))  AS `New_users`,
                    MIN(CASE WHEN td.mobile_id IS NULL THEN '0' ELSE '1' END)    AS `tester`

                    FROM   (SELECT item, date, user_id
                                FROM enswitch_new_iphone_purchases WHERE `status`=1
                                UNION 
                                SELECT item, date, user_id
                                FROM enswitch_new_android_purchases WHERE `status`=1) AS `purchase` 

                    LEFT JOIN enswitch_mobile_users mu ON mu.id = purchase.user_id
                    LEFT JOIN enswitch_testing_devices td ON td.mobile_id = mu.mobile_id

                    WHERE purchase.`date` >= :from_date AND purchase.`date` <= :to_date
            GROUP  BY `DayDate` 
            ORDER  BY `DayDate` DESC";
    }
    else 
    {
        $sql = "SELECT Substring(purchase.`date`,1,10)                       AS `DayDate`, 
               Sum(Cast(Substring(purchase.`item`, 12) AS UNSIGNED))     AS `Credit`,
               Count(1)                                                  AS `Sales`,
               (SELECT Count(*) FROM enswitch_mobile_users WHERE Date(purchase.`date`) = Substring(enswitch_mobile_users.`creation_date`,1,10))  AS `New_users`
                    FROM   (SELECT item, date 
                                FROM enswitch_new_iphone_purchases WHERE `status`=1
                                UNION 
                                SELECT item, date 
                                FROM enswitch_new_android_purchases WHERE `status`=1) AS `purchase` 
                    WHERE purchase.`date` >= :from_date AND purchase.`date` <= :to_date
            GROUP  BY `DayDate` 
            ORDER  BY `DayDate` DESC";
    }

    $result = DB::query(Database::SELECT, $sql)->bind(':from_date', $from_date)->
                                                bind(':to_date', $to_date)->execute();

return $result;
}