I have this query:
SELECT `y78f2_students`.`firstname` , `y78f2_students`.`lastName` , `y78f2_students`.`student_id`,`y78f2_attendance`.`is_present`, `y78f2_attendance`.`note`, `y78f2_attendance`.`thedate`
FROM `y78f2_students`
INNER JOIN `y78f2_enrolls` ON `y78f2_enrolls`.`student_id` = `y78f2_students`.`student_id`
INNER JOIN `y78f2_attendance` ON `y78f2_attendance`.`student_id` = `y78f2_students`.`student_id`
WHERE `y78f2_enrolls`.`term` = 'Term 2 2016'
AND `y78f2_enrolls`.`crn_class` = 'Math1R1'
and `y78f2_attendance`.`thedate` = '2016-01-24'
ORDER BY thedate desc
This query returns only the rows where the date is '2016-01-24'. Currently that is just one row: http://i.imgur.com/jRTBqQ0.png
I need to show all rows where term = 'Term 2 2016' and crn_class` = 'Math1R1' and also where the date is not set as yet. In order words I want to show all students in the class and if the date is not set for these students yet, it will show null.
This is what I would like: http://i.imgur.com/jmsuSF5.png
So in summary I need to show rows where the clause is met and those where the date would be null or not exist yet.
How can I write this query?
Try moving the conditions related to the joined tables from the end of the query, up to the table's respective ON clause for each join. Also, if you would like to return records for which no row yet exists in the y78f2_attendance table, that table should be LEFT OUTER joined, not INNER joined.
SELECT `y78f2_students`.`firstname` , `y78f2_students`.`lastName`,
`y78f2_students`.`student_id`,`y78f2_attendance`.`is_present`,
`y78f2_attendance`.`note`, `y78f2_attendance`.`thedate`
FROM `y78f2_students`
INNER JOIN `y78f2_enrolls` ON
`y78f2_enrolls`.`student_id` = `y78f2_students`.`student_id`
AND `y78f2_enrolls`.`crn_class` = 'Math1R1'
LEFT OUTER JOIN `y78f2_attendance` ON
`y78f2_attendance`.`student_id` = `y78f2_students`.`student_id`
AND (`y78f2_attendance`.`thedate` IS NULL OR `y78f2_attendance`.`thedate` = '2016-01-24')
WHERE `y78f2_enrolls`.`term` = 'Term 2 2016'
ORDER BY thedate desc
Related
I have a table that looks like this:
For each COMPANY there are multiple NATURAL_PERSON_ID, every NATURAL_PERSON have a date in which an audit was performed FECHA_DE_REPORTE and as a company there is a date in which the first loan was give to that company.
What I want is to select for each NATURAL_PERSON all the FOLIO_CONSULTA whose FECHA_DE_REPORTE is less or equal to FIRST_LOAN (the date in which the first loan was given for that company) Then I need to find the MAX date among each group and keep al the information (the whole row) for the value that fulfills all these conditions, and all this for each NATURAL_PERSON
So for this example the result I expected is all the information of the second row since this is the MAX() of FECHA_DE_REPORTE by COMPANY AND NATURAL_PERSON.
I have tried:
SELECT NPC.COMPANY_ID
,NPC.NATURAL_PERSON_ID
,NPS.DIGITAL_SIGNATURE_ID
,CDC.FOLIO_CONSULTA
,CDC.FECHA_DE_REPORTE
,FIRST_LOAN.FIRST_LOAN
,MAX(CDC.FECHA_DE_REPORTE) MAX_FOLIO_CONSUTA
FROM KONFIO.NATURAL_PERSON_COMPANY NPC
LEFT JOIN KONFIO.NATURAL_PERSON_SIGNATURE NPS ON NPS.NATURAL_PERSON_ID = NPC.NATURAL_PERSON_ID
JOIN KONFIO.CDC_RESPONSE CDC ON CDC.DIGITAL_SIGNATURE_ID= NPS.DIGITAL_SIGNATURE_ID
JOIN
(
SELECT CAPP.COMPANY_ID
,MIN(LOAN.DOCUMENTATION_DATE) FIRST_LOAN
FROM KONFIO.COMPANY_APPLICATION CAPP
JOIN KONFIO.LOAN ON LOAN.APPLICATION_ID = CAPP.APPLICATION_ID
GROUP BY CAPP.COMPANY_ID) FIRST_LOAN ON FIRST_LOAN.COMPANY_ID = NPC.COMPANY_ID
WHERE CDC.FECHA_DE_REPORTE <= FIRST_LOAN.FIRST_LOAN
AND NPC.COMPANY_ID IN (1033)
GROUP BY NPC.COMPANY_ID, NPC.NATURAL_PERSON_ID
but it retrieves the first value that finds so the FOLIO_CONSULTA does not correspond to the FOLIO_CONSULTA of the MAX() FECHA_DE_REPORTE
Any help would be appreciated
You should join the subquery for MAX(FECHA_DE_REPORTE) on table CDC_RESPONSE
SELECT NPC.COMPANY_ID
,NPC.NATURAL_PERSON_ID
,NPS.DIGITAL_SIGNATURE_ID
,CDC.FOLIO_CONSULTA
,CDC.FECHA_DE_REPORTE
,FIRST_LOAN.FIRST_LOAN
,T.MAX_FOLIO_CONSUTA
FROM KONFIO.NATURAL_PERSON_COMPANY NPC
INNER JOIN (
SELECT DIGITAL_SIGNATURE_ID
, MAX(FECHA_DE_REPORTE) MAX_FOLIO_CONSUTA
FROM KONFIO.CDC_RESPONSE
GROUP BY DIGITAL_SIGNATURE_ID
) T ON T.DIGITAL_SIGNATURE_ID = NPS.DIGITAL_SIGNATURE_ID
AND T.MAX_FOLIO_CONSUTA = CDC.FECHA_DE_REPORTE
LEFT JOIN KONFIO.NATURAL_PERSON_SIGNATURE NPS ON NPS.NATURAL_PERSON_ID = NPC.NATURAL_PERSON_ID
JOIN KONFIO.CDC_RESPONSE CDC ON CDC.DIGITAL_SIGNATURE_ID= NPS.DIGITAL_SIGNATURE_ID
JOIN
(
SELECT CAPP.COMPANY_ID
,MIN(LOAN.DOCUMENTATION_DATE) FIRST_LOAN
FROM KONFIO.COMPANY_APPLICATION CAPP
JOIN KONFIO.LOAN ON LOAN.APPLICATION_ID = CAPP.APPLICATION_ID
GROUP BY CAPP.COMPANY_ID) FIRST_LOAN ON FIRST_LOAN.COMPANY_ID = NPC.COMPANY_ID
WHERE CDC.FECHA_DE_REPORTE <= FIRST_LOAN.FIRST_LOAN
AND NPC.COMPANY_ID IN (1033)
GROUP BY NPC.COMPANY_ID, NPC.NATURAL_PERSON_ID
...... missing part
I have the following table structure:
tbl_catalogue_state
In tbl_catalogue there is a part number 58674 that has three states in the tbl_catalogue_state_lk table. Here is the result when I run a query inner joining the three tables.
As expected there are multiple rows returned.
Is there a way to only return one row having the values for each catalgue_state_id on the same row?
I would also like the ability to ignore a row for example:
select tbl_catalogue.catalogue_part, tbl_catalogue_state.catalogue_state_id from tbl_catalogue
inner join tbl_catalogue_state_lk on tbl_catalogue.catalogue_id = tbl_catalogue_state_lk.catalogue_id
inner join tbl_catalogue_state on tbl_catalogue_state_lk.catalogue_state_id = tbl_catalogue_state.catalogue_state_id
where tbl_catalogue_state_lk.catalogue_state_id <> 1;
The above select still returns two rows.
UPDATE
I was able to use GROUP_CONCAT:
select tbl_catalogue.catalogue_part, GROUP_CONCAT(tbl_catalogue_state.catalogue_state_id) as cat_state from tbl_catalogue
inner join tbl_catalogue_state_lk on tbl_catalogue.catalogue_id = tbl_catalogue_state_lk.catalogue_id
inner join tbl_catalogue_state on tbl_catalogue_state_lk.catalogue_state_id = tbl_catalogue_state.catalogue_state_id
where tbl_catalogue_state_lk.catalogue_state_id <> 1
group by tbl_catalogue.catalogue_id;
My issue is the above statement still returns a row. I need it to return nothing.
I was able to use not exists:
select tc.catalogue_part, GROUP_CONCAT(tcs.catalogue_state_id) as cat_state from tbl_catalogue as tc
inner join tbl_catalogue_state_lk as tcsl on tc.catalogue_id = tcsl.catalogue_id
inner join tbl_catalogue_state as tcs on tcsl.catalogue_state_id = tcs.catalogue_state_id
where
not exists
(
select tcsl2.catalogue_state_id from tbl_catalogue_state_lk as tcsl2
where tcsl2.catalogue_state_id = 6 and tcsl2.catalogue_id = tc.catalogue_id
)
and
not exists
(
select tcsl3.catalogue_state_id from tbl_catalogue_state_lk as tcsl3
where tcsl3.catalogue_state_id = 1 and tcsl3.catalogue_id = tc.catalogue_id
)
and
not exists
(
select tcsl3.catalogue_state_id from tbl_catalogue_state_lk as tcsl3
where tcsl3.catalogue_state_id = 2 and tcsl3.catalogue_id = tc.catalogue_id
)
group by tc.catalogue_id;
I have this query which i want to get rank from the data on my database
set #urut:=0;
set #rankhrg:=0;
select #urut:=#urut+1 as urut, a.id_tender, b.nama_tender, b.nomor_tender, b.tgl_close1 as tgl_close,
(SELECT rankhrg
from (select sum(tot_harga) as hrg_twr, id_rekanan, id_tender, #rankhrg:=#rankhrg+1 as rankhrg from tb_real_barang where id_tender = s.id_tender group by id_rekanan) as rank_harga
left join tb_master_tender s on s.id_tender = b.id_tender
where rank_harga.id_rekanan = a.id_rekanan
order by rank_harga.hrg_twr asc) as ranking
from tb_real_tender a
left join tb_master_tender b on a.id_tender = b.id_tender
where a.id_rekanan = 1
order by convert(a.id_tender,unsigned) desc
i want to pass id_tender into the select inside the select when i want to get rankhrg :
select sum(tot_harga) as hrg_twr, id_rekanan, id_tender,
#rankhrg:=#rankhrg+1 as rankhrg
from tb_real_barang
where id_tender = s.id_tender
group by id_rekanan
but I always get error that said that s.id_tender is unknown in where clause.
can someone guide me how to pass the parameter into that insert?
thank you :)
You are not joining with that table tb_master_tender and neither it's present in outer query FROM clause. So, you need to do a JOIN separately for that inner query like below
select sum(trb.tot_harga) as hrg_twr,
trb.id_rekanan,
trb.id_tender,
#rankhrg:=#rankhrg+1 as rankhrg
from tb_real_barang trb
left join tb_master_tender s on trb.id_tender = s.id_tender
group by trb.id_rekanan
The following code returns an incorrect value for the sumHours field. It appears to prepare the sumHours field then once the GROUP BY runs, sum the sums together.
SELECT mmr_ID, mmr_projectName, SUM(mmr_hoursWorked.mmr_hoursWorked_hours) AS sumHours
FROM mmr
LEFT JOIN mmr_hoursWorked
ON mmr.mmr_ID = mmr_hoursWorked.mmr_hoursWorked_project AND mmr_hoursWorked.mmr_hoursWorked_mm = "P90826"
LEFT JOIN mmr_notes
ON mmr.mmr_ID = mmr_notes.mmr_notes_MMR_ref AND mmr_notes.mmr_notes_author = "P90826"
WHERE mmr_mmAssigned = "P90826" AND mmr_projectStatus != 1 OR mmr_notes.mmr_notes_author = "P90826" AND mmr_projectStatus != 1
GROUP BY mmr_ID
Actual Results
mmr_ID - 35
mmr_projectName - Project A
sumHours - 140.2
Expected Results
mmr_ID - 35
mmr_projectName - Project A
sumHours - 35.05
Due to JOIN statements combination of results are returned, so you should handle aggregates and joins separately. Try this:
SELECT t.*
FROM
(
SELECT mmr_ID, mmr_projectName, SUM(mmr_hoursWorked.mmr_hoursWorked_hours) AS sumHours
FROM mmr
LEFT JOIN mmr_hoursWorked
ON mmr.mmr_ID = mmr_hoursWorked.mmr_hoursWorked_project AND mmr_hoursWorked.mmr_hoursWorked_mm = 'P90826'
WHERE mmr_projectStatus != 1 AND mmr_mmAssigned = 'P90826'
GROUP BY mmr_ID, mmr_projectName, mmr_mmAssigned
) t
LEFT JOIN mmr_notes
ON t.mmr_ID = mmr_notes.mmr_notes_MMR_ref
WHERE mmr_notes.mmr_notes_author = 'P90826';
The issue was corrected by normalizing the database. The mmr_notes table was integrated into the mmr_hoursWorked table since it only had one unique field.
I'm trying to select and group by all the contentid values of the table below where the match criteria can be several different values.
the contentid values actually represent cars, so I need to select [and group by] all the contentis where the values are 'GMC' and the values are 'sedan' and the value is 'automatic.
i.e. I'm trying to select all the GMC sedans with an automatic transmission.
a query like this fails [obviously]:
select * from modx_site_tmplvar_contentvalues WHERE
`value` = 'gmc' and
`value` = 'tacoma'
group by contentid
I have no idea how to create a query like that. Any suggestions?
You need to "pivot" these data on "tmplvarid", but unfortunately for you MySQL doesn't have a PIVOT statement like other RDBMS. However, you can pivot it yourself by joining in the table multiple times for each variable you care about:
SELECT
contents.contentid,
transmission.value as transmission,
type.value as type,
make.value as make
FROM
(SELECT DISTINCT contentid FROM modx_site_tmplvar_contentvalues) AS contents
LEFT JOIN
modx_site_tmplvar_contentvalues AS transmission
ON contents.contentid = transmission.contentid
AND transmission.tmplvarid = 33 -- id for transmission
LEFT JOIN
modx_site_tmplvar_contentvalues AS make
ON contents.contentid = make.contentid
AND make.tmplvarid = 13 -- id for make
LEFT JOIN
modx_site_tmplvar_contentvalues AS type
ON contents.contentid = type.contentid
AND type.tmplvarid = 17 -- id for type
WHERE
type.value = 'sedan'
AND make.value = 'GMC'
AND transmission.value = 'automatic'
You can expand this with additional joins for other criteria such as year (id 15) or mileage (id 16).
If you need to use the value only, you could try:
SELECT DISTINCT
contents.contentid,
transmission.value as transmission,
type.value as type,
make.value as make
FROM
(SELECT DISTINCT contentid FROM modx_site_tmplvar_contentvalues) AS contents
INNER JOIN
modx_site_tmplvar_contentvalues AS transmission
ON contents.contentid = transmission.contentid
AND transmission.value = 'automatic'
INNER JOIN
modx_site_tmplvar_contentvalues AS make
ON contents.contentid = make.contentid
AND make.value = 'GMC'
INNER JOIN
modx_site_tmplvar_contentvalues AS type
ON contents.contentid = type.contentid
AND type.value = 'sedan'
In any case, make sure you have an index on the value column; these queries are going to get slow.
please try this:
SELECT *
FROM modx_site_tmplvar_contentvalues t1 INNER JOIN modx_site_tmplvar_contentvalues t2 ON t1.contentid = t2.content_id
WHERE
t1.`value` = 'gmc'
AND t2.`value` = 'tacoma';
You can do this with a group by. This is the most flexible in terms of expressing the conditions. In MySQL, multiple joins will often perform better:
select contentid
from modx_site_tmplvar_contentvalues
group by contentid
having sum(`value` = 'gmc') > 0 and
sum(`value` = 'tacoma') > 0;
This is always false:
`value` = 'gmc' and
`value` = 'tacoma'
Instead, use OR:
`value` = 'gmc' OR
`value` = 'tacoma'
In a condition "and" means "this and this is true at the same time". If you want all foos and all bars, then your condition is "foo OR bar".
EDIT:
To select groups containing your values, you can write subqueries:
SELECT DISTINCT name FROM table WHERE name IN (SELECT name FROM table WHERE value='value1') AND name IN (SELECT name FROM table WHERE value='value2')