I am running a SELECT query to return addresses in a table associated with a certain "applicant code" and I'd like to join a table to also return (in the same row) the name of that applicant.
Therefore my query as of now is
SELECT a.id, a.created_at, a.updated_at, a.code, a.applicant_code, a.form_code, a.address_line_1, a.address_line_2, a.town_city, a.county_state, a.country, a.post_code, a.start_date, a.end_date, a.type, ap.first_name, ap.last_name
FROM sfs_addresses a
JOIN sfs_personal_details ap ON a.form_code = ap.form_code
WHERE a.form_code = ? AND a.applicant_code = ?
The query works, and I get the right columns and values in each row, but it returns 2 of each so like
ID
===
1
1
2
2
3
3
4
4
If I remove the JOIN it works fine. I have tried adding DISTINCT (makes no difference) I'm lost.
EDIT: Based on this answer and the comments, the OP realized that the JOIN condition should be on applicant_code rather than form_code.
You have duplicates in the second table based on the JOIN key you are using (I question if the JOIN is correct).
If you just want one row arbitrarily, you can use row_number():
SELECT a.*, ap.first_name, ap.last_name
FROM sfs_addresses a JOIN
(SELECT ap.*,
ROW_NUMBER() OVER (PARTITION BY ap.form_code ORDER BY ap.form_code) as seqnum
FROM sfs_personal_details ap
) ap
ON a.form_code = ap.form_code
WHERE a.form_code = ? AND a.applicant_code = ?;
You can replace the columns in the ORDER BY with which result you want -- for instance the oldest or most recent.
Note: form_code seems like an odd JOIN column for a table called "personal details". So, you might just need to fix the JOIN condition.
relation between 2 tables one to many to return non duplicate use distinct
SELECT distinct a.id, a.created_at, a.updated_at, a.code, a.applicant_code, a.form_code, a.address_line_1, a.address_line_2, a.town_city, a.county_state, a.country, a.post_code, a.start_date, a.end_date, a.type, ap.first_name, ap.last_name
FROM sfs_addresses a
JOIN sfs_personal_details ap ON a.form_code = ap.form_code
WHERE a.form_code = ? AND a.applicant_code = ?
I have 2 tables which I want to join and retrieve some specific data. These are my tables.
tbl_user (reg_id, l_name, f_name, status)
tbl_payments (pay_id, reg_id, mem_plan, from_date, to_date, bill_no, payed_date)
What I need to do is select and view the users who have due payments. To do that I want to get the user details where "status=0" from tbl_user and join the 2 tables together and the conditions are to_date< current date, difference between [current date and the to_date] < 31 and filter by the Max value of to_date.
What I did so far gives me a result according to above mentioned conditions except it dosen't filter by the MAX(to_date). This is my query.
SELECT
A.reg_id,
A.f_name,
A.l_name,
B.mem_plan,
B.from_date,
Max(B.to_date) AS to_date,
B.bill_no,
B.payed_date
FROM
tbl_user A,
tbl_payments B
WHERE
A.status = 0
AND A.reg_id = B.reg_id
AND Date(Now()) >= Date(B.to_date)
AND Datediff(Date(Now()), Date(b.to_date)) < 31
GROUP BY
a.reg_id, b.mem_plan, b.from_date, b.bill_no, b.payed_date;
I'm not very familiar with MYSQL, So please someone tell me what I did wrong or if this query is not up to the standard.
Here are some sample data to work on.
tbl_user ( [M1111,Jon, Doe,0], [M1112,Jane,Doe,1],[M1113,Jony,Doe,0] )
tbl_payment ( [1,M1111,Monthly,2018-05-14,2018-06-14,b123,2018-05-14],[2,M1112,3Months,2018-02-03,2018-05-03,b112,2018-02-03],[3,M1113,Monthly,2018-06-14,2018-07-14,b158,2018-06-14],[4,M1111,Monthly,2018-06-15,2018-07-15,b345,2018-06-15],[5,M1113,Monthly,2018-06-06,2018-07-06,b158,2018-06-06],[6,M1111,Monthly,2018-07-05,2018-08-05,b345,2018-07-05] )
Assuming current date is 2018-07-17, The expecting result should be this
[M1111,Jon,Doe,Monthly,2018-06-15,2018-07-15,b345,2018-06-15],[M1113,Jony,Doe,Monthly,2018-06-14,2018-07-14,b158,2018-06-14]
Instead of that, my query gives me this.
[M1111,Jon,Doe,Monthly,2018-06-15,2018-07-15,b345,2018-06-15],[M1113,Jony,Doe,Monthly,2018-06-06,2018-07-06,b158,2018-06-06],
[M1113,Jony,Doe,Monthly,2018-06-14,2018-07-14,b158,2018-06-14]
I wrote another query which gives me the result set exactly as i want. But I'm not sure whether it's up to the standards. If someone can simplify this or make it better, appreciate very much.
SELECT A.reg_id,A.f_name,A.l_name,D.mem_plan,D.from_date,D.to_date,D.bill_no,D.payed_date
FROM tbl_user A
JOIN (SELECT B.reg_id,B.mem_plan,B.from_date,B.to_date,B.bill_no,B.payed_date
FROM tbl_payments B
JOIN (
SELECT reg_id, MAX(to_date) as to_date
FROM tbl_payments
WHERE DATE(NOW()) >= DATE(to_date) AND DATEDIFF(DATE(NOW()), DATE(to_date))<31
GROUP BY reg_id) C
ON B.reg_id = C.reg_id AND B.to_date= C.to_date) D
ON A.reg_id = D.reg_id
WHERE A.status=0;
I believe having won't work here and that your second query is about as good as it gets. I've condensed it a little here:
SELECT A.reg_id,f_name,l_name,mem_plan,from_date,to_date,bill_no,payed_date
FROM #tbl_user A
JOIN #tbl_payments B ON A.reg_id = b.reg_id
JOIN (
SELECT reg_id, MAX(to_date) as max_to_date
FROM #tbl_payments
WHERE DATE(NOW()) >= DATE(to_date) AND DATEDIFF(DATE(NOW()), DATE(to_date))<31
GROUP BY reg_id
) C ON B.reg_id = C.reg_id AND B.to_date= C.max_to_date
WHERE A.status=0;
This is my Query I want to get latest record in each group.I have two table t_service_request and t_request_chkpoint
t_service_request
------------
LTS,JFT,CUS_NO,REQUETST_ID...
t_request_chkpoint
------------
LTS ,REQUETST_ID...
Both table match by REQUETST_ID.
I want to group by cus_no in table t_service_request
SELECT S.*, A.ID as CID, A.ENTRY_ID, A.LTS
FROM maintenance.t_service_request S
WHERE JFT IN (
SELECT MAX(JFT)
FROM maintenance.t_service_request
GROUP BY CUS_NO
) LEFT OUTER JOIN maintenance.t_request_chkpoint A
ON S.REQUEST_ID = A.REQUEST_ID where S.COMPANY_ID = '0002' AND S.STATE >= 3 AND A.STATE >= 3
but didn't work any suggestions ?
t_service_request
------------
LTS|JFT|CUS_NO|REQUETST_ID|
t_request_chkpoint
------------
|LTS|REQUETST_ID|
Join above two table(Request_id) and select latest JFT in each CUS_NO
Try this, maybe works;)
SELECT DISTINCT
S.*,
A.ID AS CID,
A.ENTRY_ID,
A.LTS
FROM maintenance.t_service_request S
LEFT JOIN maintenance.t_request_chkpoint A ON A.REQUETST_ID = S.REQUETST_ID AND A.STATE >= 3
WHERE S.JFT = (SELECT MAX(B.JFT)
FROM maintenance.t_service_request B
WHERE B.CUS_NO = S.CUS_NO
GROUP BY B.CUS_NO)
AND S.COMPANY_ID = '0002' AND S.STATE >= 3
I think your sql may have some syntax errors and I am not sure I've misunderstood your requirement or not.
I must admit, I still don't understand what you are asking. Your query, however, is incomplete, and maybe fixing it solves your problem already.
You say you want "to get latest record in each group" and in your query you are looking for the maximum JFT per CUS_NO. Then, however you are only comparing the JFT and not the CUS_NO.
Moreover, your query is syntactically incorrect, as it has two WHERE clauses. Last but not least, (outer) join criteria (state >= 3 here) belongs in the ON clause, not in the WHERE clause.
Here is the corrected query:
select
sr.*,
rc.id as cid,
rc.entry_id,
rc.lts
from maintenance.t_service_request sr
left outer join maintenance.t_request_chkpoint rc on rc.request_id = sr.request_id
and rc.state >= 3
where sr.company_id = '0002' and sr.state >= 3
and (sr.cus_no, sr.jft) in
(
select cus_no, max(jft)
from maintenance.t_service_request
group by cus_no
);
there's select which i'm trying to make work
SELECT DISTINCT a.client_key, client_name
FROM Bloggers AS a
LEFT JOIN BloggersPosts AS b
ON a.client_key = b.client_key
WHERE a.status = 1 AND
0 NOT IN (SELECT MIN(STATUS) FROM BloggersPosts AS c WHERE c.client_key=a.client_key)
For some reason 0 NOT IN (SELECT MIN(STATUS) FROM BloggersPosts AS c WHERE c.client_key=a.client_key) is not working, any ideas how to make it work?
EDIT: by not working i mean that if i delete the susbelect - my query gives result rows. But as soon as I add it - there is empty result. At the same time when i execute the subselect alone SELECT MIN(STATUS) FROM BloggersPosts - it returns 1, which means that putting it as subselect - should return results too, but it doesn't.
Thank you
I hope this will do your job. Trying different solution for your problem.
SELECT DISTINCT a.client_key, client_name
FROM Bloggers AS a
JOIN (SELECT client_key, MIN(STATUS) minstatus FROM BloggersPosts GROUP BY client_key) b
ON a.client_key = b.client_key AND minstatus <> 0
WHERE a.status = 1
Use JOIN instead, something like similar:
SELECT DISTINCT a.client_key, client_name, MIN(c.STATUS) blog_status
FROM Bloggers AS a
LEFT JOIN BloggersPosts AS b ON a.client_key = b.client_key
LEFT JOIN BloggersPosts AS c ON c.client_key = a.client_key
WHERE a.status = 1
HAVING blog_status <> 0
I have the following query, but after some time when users start putting in more and more items in the "ci_falsepositives" table, it gets really slow.
The ci_falsepositives table contains a reference field from ci_address_book and another reference field from ci_matched_sanctions.
How can I create a new query but still being able to sort on each field.
For example I can still sort on "hits" or "matches"
SELECT *, matches - falsepositives AS hits
FROM (SELECT c.*, IFNULL(p.total, 0) AS matches,
(SELECT COUNT(*)
FROM ci_falsepositives n
WHERE n.addressbook_id = c.reference
AND n.sanction_key IN
(SELECT sanction_key FROM ci_matched_sanctions)
) AS falsepositives
FROM ci_address_book c
LEFT JOIN
(SELECT addressbook_id, COUNT(match_id) AS total
FROM ci_matched_sanctions
GROUP BY addressbook_id) AS p
ON c.id = p.addressbook_id
) S
ORDER BY folder asc, wholename ASC
LIMIT 0,15
The problem has to be the SELECT COUNT(*) FROM ci_falsepositives sub-query. That sub-query can be written using an inner join between ci_falsepositives and ci_matched_sanctions, but the optimizer might do that for you anyway. What I think you need to do, though, is make that sub-query into a separate query in the FROM clause of the 'next query out' (that is, SELECT c.*, ...). Probably, that query is being evaluated multiple times - and that's what's hurting you when people add records to ci_falsepositives. You should study the query plan carefully.
Maybe this query will be better:
SELECT *, matches - falsepositives AS hits
FROM (SELECT c.*, IFNULL(p.total, 0) AS matches, f.falsepositives
FROM ci_address_book AS c
JOIN (SELECT n.addressbook_id, COUNT(*) AS falsepositives
FROM ci_falsepositives AS n
JOIN ci_matched_sanctions AS m
ON n.sanction_key = m.sanction_key
GROUP BY n.addressbook_id
) AS f
ON c.reference = f.addressbook_id
LEFT JOIN
(SELECT addressbook_id, COUNT(match_id) AS total
FROM ci_matched_sanctions
GROUP BY addressbook_id) AS p
ON c.id = p.addressbook_id
) AS s
ORDER BY folder asc, wholename ASC
LIMIT 0, 15