Im trying to make a a query, but its doubling the Sum values
SELECT
cidades.id AS id,
cidades.name AS municipio,
Sum(conjuntos.n_uhs) AS uh,
programas.id AS programa,
conjuntos.name
FROM
conjuntos
Inner Join conjuntos_programas ON conjuntos_programas.conjunto_id = conjuntos.id
Inner Join programas ON programas.id = conjuntos_programas.programa_id
Inner Join cidades ON conjuntos.cidade_id = cidades.id
WHERE
conjuntos.situation_id = 2
GROUP BY
conjuntos.cidade_id
ORDER BY
municipio ASC
You've got duplicate rows, you can check this by removing the group by and the SUM(... from your query.
Change the query as follows and tell me if that fixes to problem.
SELECT DISTINCT
cidades.id AS id,
cidades.name AS municipio,
SUM(conjuntos.n_uhs) AS uh,
programas.id AS programa,
conjuntos.name
FROM conjuntos
INNER JOIN conjuntos_programas ON conjuntos_programas.conjunto_id = conjuntos.id
INNER JOIN programas ON programas.id = conjuntos_programas.programa_id
INNER JOIN cidades ON conjuntos.cidade_id = cidades.id
WHERE conjuntos.situation_id = 2
GROUP BY conjuntos.cidade_id
ORDER BY municipio ASC
It sounds like you have a one to many relationship between two or more of your tables to be doing this. Try doing a SELECT * and start debugging your query to see where it is duplicating the rows.
Related
I am running a query on a PHP page that will pull all records from one table, INNER JOIN with two other tables and then list all of the results. However on the second table I only want the most recent record.
Here is my query
SELECT * FROM wn_trailer
INNER JOIN (
SELECT id, trailer_id, trailer_status, trailer_assigned, MAX(last_update), trailer_lat, trailer_long
FROM wn_trailer_history
) AS th ON wn_trailer.id = th.trailer_id
INNER JOIN wn_trailer_status ON wn_trailer_status.id = th.trailer_status
INNER JOIN wn_users ON wn_users.id = th.trailer_assigned
ORDER BY trailer_number ASC
The query runs but returns only the first record.
You want an additional JOIN to bring in the data on the last update date. Also, your subquery needs a GROUP BY:
SELECT *
FROM wn_trailer t INNER JOIN
(SELECT trailer_id, MAX(last_update) as max_last_update
FROM wn_trailer_history
GROUP BY trailer_id
) tht
ON t.id = tht.trailer_id INNER JOIN
wn_trailer_history th
ON th.trailer_id = tht.trailer_id AND
th.last_update = tht.max_last_update INNER JOIN
wn_trailer_status ts
ON ts.id = th.trailer_status INNER JOIN
wn_users u
ON u.id = th.trailer_assigned
ORDER BY trailer_number ASC;
I also added table aliases so the query is easier to write and to read.
I'm trying to left join the second table useri_ban based on the users' ids, with the extra condition: useri_ban.start_ban = max_start.
In order for me to calculate max_start, I have to run the following subquery:
(SELECT MAX(ub.start_ban) AS max_start, user_id FROM useri_ban ub WHERE ub.user_id = useri.id)
Furthermore, in order to add max_start to every row, I need to inner join this subquery's result into the main result. However, it seems that once I apply that join, the subquery is no longer able to access useri.id.
What am I doing wrong?
SELECT
useri.id as id,
useri.email as email,
useri_ban.warning_type_id as warning_type_id,
useri_ban.type as type,
useri.created_at AS created_at
FROM `useri`
inner join
(SELECT MAX(ub.start_ban) AS max_start, user_id FROM useri_ban ub WHERE ub.user_id = useri.id) `temp`
on `useri`.`id` = `temp`.`user_id`
left join `useri_ban` on `useri_ban`.`user_id` = `useri`.`id` and `useri_ban`.`start_ban` = `max_start`
Does this solve your problem? You need GROUP BY in the inner query instead of another join.
SELECT useri.id, useri.email, maxQuery.maxStartBan
FROM useri
INNER JOIN
(
SELECT useri_ban.user_id ubid, MAX(useri_ban.startban) maxStartBan
FROM useri_ban
GROUP BY useri_ban.user_id
) AS maxQuery
ON maxQuery.ubid = useri.id;
What i'm trying to do is get the DISTINCT results using a MYSQL query:
$sql = "SELECT un.*, co.order_product_quantity AS product_num, cu.first_name, cu.surname, cp.product_name, cp.product_thumbnail AS prod_img, co.order_goods_cost, co.order_delivery_cost, co.order_status as status
FROM (
SELECT DISTINCT order_unique_id AS o_id, order_date
FROM cbs_orders
GROUP BY order_unique_id
) un
INNER JOIN cbs_orders co ON co.order_unique_id = un.o_id
INNER JOIN cbs_users cu ON cu.id = co.order_user_id
INNER JOIN cbs_products cp ON cp.product_id = co.order_product_id
ORDER BY un.order_date DESC LIMIT $start_from, $num_rec_per_page ";
I'm looking to get the DISTINCT order_unique_id from the query, i never wrote the query initially, i thought adding "SELECT DISTINCT order_unique_id" would solve the issue but it still brings back duplicate ids.
cheers for any help guys
Graham
You want to leverage GROUP BY correctly; DISTINCT won't help you in this situation. Additional, I'm pretty sure that sub-select is not needed.
Try this
$sql = "SELECT un.order_unique_id AS o_id, un.order_date,
co.order_product_quantity AS product_num,
cu.first_name, cu.surname, cp.product_name,
cp.product_thumbnail AS prod_img, co.order_goods_cost,
co.order_delivery_cost, co.order_status as status
FROM cbs_orders AS un
INNER JOIN cbs_orders co ON co.order_unique_id = un.o_id
INNER JOIN cbs_users cu ON cu.id = co.order_user_id
INNER JOIN cbs_products cp ON cp.product_id = co.order_product_id
GROUP BY un.order_unique_id
ORDER BY un.order_date DESC
LIMIT $start_from, $num_rec_per_page ";
This might produce odd results, because you are not applying aggregate functions to other columns. You may need to use those to get desired results.
Let me hazard a guess that you want records for only the most recent order. If this is the case, then you can do what you want, by properly aggregating the data:
SELECT un.*, co.order_product_quantity AS product_num, cu.first_name,
cu.surname, cp.product_name, cp.product_thumbnail AS prod_img,
co.order_goods_cost, co.order_delivery_cost, co.order_status as status
FROM (SELECT order_unique_id AS o_id, max(order_date) as order_date
FROM cbs_orders
GROUP BY order_unique_id
) un INNER JOIN
cbs_orders co
ON co.order_unique_id = un.o_id INNER JOIN
cbs_users cu
ON cu.id = co.order_user_id INNER JOIN
cbs_products cp
ON cp.product_id = co.order_product_id
ORDER BY un.order_date DESC
LIMIT $start_from, $num_rec_per_page;
If you want only one row per order, then you need to figure out what to do with the products. In my opinion, this interpretation is so different from your current question that you should ask another question, providing sample data and desired results.
Some sql query gives me the following result:
As you can see, it already has GROUP BY.
So what I need? I need to group it again (by treatment_name) and count rows for each group. See more details on screenshot.
Here is full query:
SELECT
treatment_summaries.*
FROM `treatment_summaries`
INNER JOIN
`treatments`
ON
`treatments`.`treatment_summary_id` = `treatment_summaries`.`id`
AND
(treatment <> '' and treatment is not null)
INNER JOIN
`treatment_reviews`
ON
`treatment_reviews`.`treatment_id` = `treatments`.`id`
INNER JOIN
`conditions_treatment_reviews`
ON
`conditions_treatment_reviews`.`treatment_review_id` = `treatment_reviews`.`id`
INNER JOIN
`conditions` ON `conditions`.`id` = `conditions_treatment_reviews`.`condition_id`
INNER JOIN `conditions_treatment_summaries` `conditions_treatment_summaries_join`
ON
`conditions_treatment_summaries_join`.`treatment_summary_id` = `treatment_summaries`.`id`
INNER JOIN `conditions` `conditions_treatment_summaries`
ON `conditions_treatment_summaries`.`id` = `conditions_treatment_summaries_join`.`condition_id`
WHERE
`conditions`.`id` = 9
AND `conditions`.`id` IN (9)
AND (latest_review_id is not null)
GROUP BY
treatment_reviews.id
ORDER BY
treatment_summaries.reviews_count desc
LIMIT 20 OFFSET 0
Maybe there is another issue, cause GROUP BY should not leave same lines (for given column), but anyway you can wrap it like this:
SELECT * FROM ( YOUR_SQL_SELECT_WITH_EVERYTHING ) GROUP BY id
So the result you get will behave as another table and you can do all operations like GROUP BY again.
when i write a MySQL query, there occur a problem. here is my query
SELECT
SUM(view_product_count_details.view_product_count) AS count_sum,
product_details.product_name,
product_details.product_url,
product_details.product_price,
product_image_details.product_image_name,
main_category_details.main_category_url,
sub_category_details.sub_category_url
FROM
view_product_count_details
JOIN
product_details ON view_product_count_details.product_id_fk = product_details.product_id
JOIN
product_image_details ON product_image_details.product_id_fk = view_product_count_details.product_id_fk
JOIN
main_category_details ON product_details.product_main_cat_id = main_category_details.main_category_id
JOIN
sub_category_details ON product_details.product_sub_cat_id_fk = sub_category_details.sub_category_id
WHERE
view_product_count_details.view_product_status = 'active'
GROUP BY view_product_count_details.product_id_fk
ORDER BY count_sum DESC
LIMIT 4
Here I have multiple images for one product.the images are in table "product_image_details". this query returns count as the number of images, where I need the count of product viewed by people which is stored in table "view_product_count_details". when I just pick the count, i got the count as it is. but when i join the table "product_image details", result become wrong. Is there any way to do it in single query?
Please help me... Thanks in advance.... :)
You can do it by having an inline query. I am not sure how this will perform when you have more data.
SELECT table1.*,product_image_details.product_image_name FROM
(
SELECT
SUM(view_product_count_details.view_product_count) AS count_sum,
product_details.product_id,
product_details.product_name,
product_details.product_url,
product_details.product_price,
main_category_details.main_category_url,
sub_category_details.sub_category_url
FROM
view_product_count_details
JOIN
product_details ON view_product_count_details.product_id_fk = product_details.product_id
JOIN
product_image_details ON product_image_details.product_id_fk = view_product_count_details.product_id_fk
JOIN
main_category_details ON product_details.product_main_cat_id = main_category_details.main_category_id
JOIN
sub_category_details ON product_details.product_sub_cat_id_fk = sub_category_details.sub_category_id
WHERE
view_product_count_details.view_product_status = 'active'
GROUP BY view_product_count_details.product_id_fk
ORDER BY count_sum DESC
LIMIT 4
) table1
JOIN
product_image_details ON product_image_details.product_id_fk = table1.product_id
LIMIT 4