I am trying to combine two queries into a single one. But I am not having any success in it.
Query1:
SELECT
District.PkLocID AS districtId,
District.LocName AS districtName,
COUNT(DISTINCT UC.PkLocID) AS reported
FROM
tbl_locations AS District
INNER JOIN tbl_locations AS UC ON District.PkLocID = UC.district_id
INNER JOIN tbl_warehouse ON UC.PkLocID = tbl_warehouse.locid
INNER JOIN tbl_wh_data ON tbl_warehouse.wh_id = tbl_wh_data.wh_id
INNER JOIN stakeholder ON tbl_warehouse.stkofficeid = stakeholder.stkid
WHERE
stakeholder.lvl = 6
AND tbl_warehouse.stkid = 1
AND District.province_id = 1
AND tbl_wh_data.report_month = 02
AND tbl_wh_data.report_year = 2014
AND tbl_wh_data.wh_issue_up IS NOT NULL
GROUP BY
District.PkLocID
ORDER BY
districtId ASC
Query 2:
SELECT
COUNT(DISTINCT UC.PkLocID) AS totalWH,
District.PkLocID
FROM
tbl_locations AS District
INNER JOIN tbl_locations AS UC ON District.PkLocID = UC.district_id
INNER JOIN tbl_warehouse ON UC.PkLocID = tbl_warehouse.locid
INNER JOIN stakeholder ON tbl_warehouse.stkofficeid = stakeholder.stkid
WHERE
stakeholder.lvl = 6
AND tbl_warehouse.stkid = 1
AND District.province_id = 1
GROUP BY
District.PkLocID
ORDER BY
District.PkLocID ASC
I have tried applying subqueries and joins but it is showing me incorrect results.
Related
I have this query which i believe can be optimized:
SELECT floors.id, floors.floor FROM floors
WHERE floors.societies_id = 1
AND floors.status = 'Y'
AND floors.id NOT IN (
SELECT DISTINCT(floors.id) FROM floors
INNER JOIN societies ON societies.id = floors.societies_id
INNER JOIN resident_floors ON resident_floors.floors_id = floors.id
WHERE societies.id = 1
AND floors.status = 'Y'
)
Is this query fine to use or there it can be improved..?
It looks like you want to get all floors that aren't present in resident_floors. For this we can left join RF in and ask for only rows where the join failed resulting in a null in RF:
SELECT floors.* FROM floors
INNER JOIN societies ON societies.id = floors.societies_id
LEFT JOIN resident_floors ON resident_floors.floors_id = floors.id
WHERE societies.id = 1
AND floors.status = 'Y'
AND resident_floors.floors_id IS NULL
Here's the code:
SELECT RD.INTREQDQUANTITY, I.strItemName, v.strVendName, iu.strItemUnitName,
ip.dblItemPAmount, MAX(ip.dtmItemPasOf) AS EXR
FROM TBLREQUESTDETAILS RD,tblitem I,tblvendor v,tblitemunit iu,tblitemprice ip`
WHERE RD.strReqDItemCode = I.strItemCode
AND RD.strReqDItemUnitCode = iu.strItemUnitCode
AND RD.strReqDVendCode = v.strVendCode
AND i.strItemCode = ip.strItemPItemCode
and RD.strReqDReqHCode = 'RQST121'
GROUP BY RD.INTREQDQUANTITY,I.strItemName,v.strVendName,iu.strItemUnitName, ip.dblItemPAmount
ORDER BY EXR desc ;
AND Here's The result:
What should I do If I want to fetch the current price for each itemname,vendorname and itemunit?? I want to fetch only those rows who's price is the Latest... Help me please those with boxes are the rows that i want to fetch
You can use where in the grouped value (and use explicict join notatio)
SELECT RD.INTREQDQUANTITY, I.strItemName, v.strVendName, iu.strItemUnitName,
ip.dblItemPAmount, ip.dtmItemPasOf AS EXR
FROM TBLREQUESTDETAILS RD
INNER JOIN tblitem I ON RD.strReqDItemCode = I.strItemCode
INNER JOIN tblvendor v ON D.strReqDVendCode = v.strVendCode
INNER JOIN tblitemunit iu ON RD.strReqDItemUnitCode = iu.strItemUnitCode
INNER JOIN tblitemprice ip ON i.strItemCode = ip.strItemPItemCode
WHERE RD.strReqDReqHCode = 'RQST121'
and ( RD.INTREQDQUANTITY, I.strItemName, v.strVendName, iu.strItemUnitName, ip.dtmItemPasOf)
in ( SELECT RD.INTREQDQUANTITY, I.strItemName, v.strVendName, iu.strItemUnitName,
MAX(ip.dtmItemPasOf)
FROM TBLREQUESTDETAILS RD
INNER JOIN tblitem I ON RD.strReqDItemCode = I.strItemCode
INNER JOIN tblvendor v ON D.strReqDVendCode = v.strVendCode
INNER JOIN tblitemunit iu ON RD.strReqDItemUnitCode = iu.strItemUnitCode
INNER JOIN tblitemprice ip ON i.strItemCode = ip.strItemPItemCode
WHERE RD.strReqDReqHCode = 'RQST121'
GROUP BY RD.INTREQDQUANTITY,I.strItemName,v.strVendName,iu.strItemUnitName
)
ORDER BY EXR desc ;
(and use explicict join notation .. i think is more readable)
I understand about how to use the count with the group by, but I need a specific use of this reverse, I try to do this query:
SELECT
COUNT(pac.strid_paciente)
FROM tb_paciente AS pac
LEFT JOIN tb_entidades AS ent
ON pac.strid_entidad = ent.strid_entidad
LEFT JOIN tb_escolaridad AS esc
ON pac.strid_escolaridad = esc.strID_Escolaridad
LEFT JOIN tb_etnia AS etn
ON pac.strid_etnia = etn.strID_Etnia
LEFT JOIN tb_raza AS raza
ON pac.strid_raza = raza.strid_raza
LEFT JOIN tb_religion AS rel
ON pac.strid_religion = rel.strid_religion
LEFT JOIN tb_ocupacion AS ocu
ON pac.strOfi_Paciente = ocu.strID_Ocupacion
LEFT JOIN tb_consulta AS con
ON pac.strid_paciente = con.strid_paciente
LEFT JOIN tb_usuarios AS usu
ON usu.strid_usuario = con.strid_medico
GROUP BY pac.strid_paciente
And it gives me:
COUNT(pac.strid_paciente)
1
1
2
3
4
5
2
I need the result of every count: 18, the problem is that I cant delete the group by because give a different result. Something like that:
COUNT(pac.strid_paciente)
18
Have you tried SUM( COUNT(pac.strid_paciente) ) OR if that fails then the following will work:
SELECT SUM( t.cnt ) FROM(
SELECT
COUNT(pac.strid_paciente) AS cnt
FROM tb_paciente AS pac
LEFT JOIN tb_entidades AS ent
ON pac.strid_entidad = ent.strid_entidad
LEFT JOIN tb_escolaridad AS esc
ON pac.strid_escolaridad = esc.strID_Escolaridad
LEFT JOIN tb_etnia AS etn
ON pac.strid_etnia = etn.strID_Etnia
LEFT JOIN tb_raza AS raza
ON pac.strid_raza = raza.strid_raza
LEFT JOIN tb_religion AS rel
ON pac.strid_religion = rel.strid_religion
LEFT JOIN tb_ocupacion AS ocu
ON pac.strOfi_Paciente = ocu.strID_Ocupacion
LEFT JOIN tb_consulta AS con
ON pac.strid_paciente = con.strid_paciente
LEFT JOIN tb_usuarios AS usu
ON usu.strid_usuario = con.strid_medico
GROUP BY pac.strid_paciente
) AS t
SELECT `mpeda_fish`.`id`, `mpeda_fish`.`fish` as analysis, sum(mpeda_fishdetails.quantity) as qty
FROM (`mpeda_fishdetails`)
INNER JOIN `mpeda_scientificfish` ON `mpeda_scientificfish`.`id` = `mpeda_fishdetails`.`scientificfish`
INNER JOIN `mpeda_fish` ON `mpeda_fish`.`id` = `mpeda_scientificfish`.`fish`
INNER JOIN `mpeda_fishcatch` ON `mpeda_fishcatch`.`id` = `mpeda_fishdetails`.`fishcatch`
INNER JOIN `mpeda_harbour` ON `mpeda_harbour`.`id` = `mpeda_fishcatch`.`harbour`
WHERE `mpeda_fishcatch`.`status` = 1
ORDER BY `mpeda_fishdetails`.`id` ASC
this query gets 2 columns null value and one column gets data inside why?
You use the SUM() function. In order to get meaningful results you should have a group by clause.
SELECT `mpeda_fish`.`id`, `mpeda_fish`.`fish` as analysis, sum(mpeda_fishdetails.quantity) as qty
FROM (`mpeda_fishdetails`)
INNER JOIN `mpeda_scientificfish` ON `mpeda_scientificfish`.`id` = `mpeda_fishdetails`.`scientificfish`
INNER JOIN `mpeda_fish` ON `mpeda_fish`.`id` = `mpeda_scientificfish`.`fish`
INNER JOIN `mpeda_fishcatch` ON `mpeda_fishcatch`.`id` = `mpeda_fishdetails`.`fishcatch`
INNER JOIN `mpeda_harbour` ON `mpeda_harbour`.`id` = `mpeda_fishcatch`.`harbour`
WHERE `mpeda_fishcatch`.`status` = 1
GROUP BY `mpeda_fish`.`id`, `mpeda_fish`.`fish`
ORDER BY `mpeda_fishdetails`.`id` ASC
Please am having difficulty in optimizing this query. What am trying to achieve is to join about 8 tables, of which only about 3 of the tables contains large data (1.5m records). This query returns expected records but is taking 1min to run which is bad.
I know it can be optimized to perform far better, pls i need assistance from you experts. I have index on the fields used for join already.
SELECT topic_id,
topic_title,
unit_name_abbrev,
sch_name_abbrev,
picture_small_url AS thumbnail,
profile_pix_upload_path,
first_name,
last_name,
topic_poster,
topic_replies,
topic_views,
topic_last_post_time AS topic_post_time,
sch_sub_forum_id
FROM (_sch_forum_topics
INNER JOIN _users
ON ( _users.userid = _sch_forum_topics.topic_poster )
INNER JOIN _profile
ON _profile.userid = _users.userid
INNER JOIN _class
ON _users.classid = _class.classid
INNER JOIN _level
ON _class.level_id = _level.id
INNER JOIN _unit
ON _class.unitid = _unit.unitid
INNER JOIN _department
ON _unit.deptid = _department.deptid
INNER JOIN _faculty
ON _department.facid = _faculty.facid
INNER JOIN _university
ON _faculty.schid = _university.schid)
WHERE _sch_forum_topics.sch_sub_forum_id = 4
ORDER BY _sch_forum_topics.topic_last_post_time DESC
LIMIT 0, 15
Try to filter before making JOIN's.
SELECT topic_id,
topic_title,
unit_name_abbrev,
sch_name_abbrev,
picture_small_url AS thumbnail,
profile_pix_upload_path,
first_name,
last_name,
topic_poster,
topic_replies,
topic_views,
topic_last_post_time AS topic_post_time,
sch_sub_forum_id
FROM
( select * FROM sch_forum_topics WHERE sch_sub_forum_id = 4
ORDER BY topic_last_post_time DESC
LIMIT 0, 15 ) main
INNER JOIN _users
ON ( _users.userid = main.topic_poster )
INNER JOIN _profile
ON _profile.userid = _users.userid
INNER JOIN _class
ON _users.classid = _class.classid
INNER JOIN _level
ON _class.level_id = _level.id
INNER JOIN _unit
ON _class.unitid = _unit.unitid
INNER JOIN _department
ON _unit.deptid = _department.deptid
INNER JOIN _faculty
ON _department.facid = _faculty.facid
INNER JOIN _university
ON _faculty.schid = _university.schid);