I already LEFT JOINed many tables into two sections, but now how do I join these two together?
I am not sure if subquery would work but at least I tried subquery its very confused/
SELECT MoviePerson.PersonId, MoviePerson.PersonFirstName, MoviePerson.PersonLastName, MoviePersonRole.RoleId FROM MoviePerson
LEFT JOIN MoviePersonRole ON MoviePerson.PersonId = MoviePersonRole.PersonId;
select DVD.DVDId, DVD.GenreId, DVD.RatingId, DVD.DVDTitle, DVD.DVDReleasedate, DVD.TheaterReleaseDate, Genre.GenreName, Rating.RatingName,
Rating.RatingDescription
from DVD
LEFT join Genre on DVD.GenreId = Genre.GenreID
LEFT JOIN Rating ON DVD.RatingId = Rating.RatingId
LEFT JOIN MoviePersonRole ON DVD.DVDId =MoviePersonRole.DVDId
;
db<>fiddle
It doesn't look as though you have a column to join on. If you did, you could use the following syntax:
SELECT *
FROM
(
SELECT MoviePerson.PersonId, MoviePerson.PersonFirstName, MoviePerson.PersonLastName, MoviePersonRole.RoleId FROM MoviePerson
LEFT JOIN MoviePersonRole ON MoviePerson.PersonId = MoviePersonRole.PersonId;
) X
INNER JOIN
(
select DVD.DVDId, DVD.GenreId, DVD.RatingId, DVD.DVDTitle, DVD.DVDReleasedate, DVD.TheaterReleaseDate, Genre.GenreName, Rating.RatingName,
Rating.RatingDescription
from DVD
LEFT join Genre on DVD.GenreId = Genre.GenreID
LEFT JOIN Rating ON DVD.RatingId = Rating.RatingId
LEFT JOIN MoviePersonRole ON DVD.DVDId =MoviePersonRole.DVDId
) Y
ON X.column_to_join = y.column_to_join
Related
I am starting with this query, which works fine:
SELECT
C.ContactSys
, ... a bunch of other rows...
FROM Users U
INNER JOIN Contacts C ON U.ContactSys = C.ContactSys
LEFT JOIN UserWatchList UW ON U.UserSys = UW.UserSys
LEFT JOIN Accounts A ON C.AccountSys = A.AccountSys
WHERE
C.OrganizationSys = 1012
AND U.UserTypeSys = 2
AND C.FirstName = 'steve'
Now, I've been given this requirement:
For every visitor returned by the Visitor Search, take ContactSys, get the most recent entry in the GuestLog table for that contact, then return the columns ABC and XYZ from the GuestLog table.
I'm having trouble with that. I need something like this (I think)...
SELECT
C.ContactSys
, GL.ABC
, GL.XYZ
, ... a bunch of other rows...
FROM Users U
INNER JOIN Contacts C ON U.ContactSys = C.ContactSys
LEFT JOIN UserWatchList UW ON U.UserSys = UW.UserSys
LEFT JOIN Accounts A ON C.AccountSys = A.AccountSys
LEFT JOIN (SELECT TOP 1 * FROM GuestLog GU WHERE GU.ContactSys = ????? ORDER BY GuestLogSys DESC) GL ON GL.ContactSys = C.ContactSys
WHERE
C.OrganizationSys = 1012
AND U.UserTypeSys = 2
AND C.FirstName = 'steve'
Only that's not it because that subquery on the JOIN doesn't know anything about the outer tables.
I've been looking at these posts and their answers, but I'm having a hard time translating them to my needs:
SQL: Turn a subquery into a join: How to refer to outside table in nested join where clause?
Reference to outer query in subquery JOIN
Referencing outer query in subquery
Referencing outer query's tables in a subquery
If that is the logic you want, you can use OUTER APPLY:
SELECT C.ContactSys, GL.ABC, GL.XYZ,
... a bunch of other columns ...
FROM Users U JOIN
Contacts C
ON U.ContactSys = C.ContactSys LEFT JOIN
UserWatchList UW
ON U.UserSys = UW.UserSys LEFT JOIN
Accounts A
ON C.AccountSys = A.AccountSys OUTER APPLY
(SELECT TOP 1 gl.*
FROM GuestLog gl
WHERE gl.ContactSys = C.ContactSys
ORDER BY gl.GuestLogSys DESC
) GL
WHERE C.OrganizationSys = 1012 AND
U.UserTypeSys = 2 AND
C.FirstName = 'steve'
I want to make a stress test to a procedure than generate a .csv file.
The problem is that i have not enough data, so i want to duplicate data in my sql select .
The query look like this:
SELECT P.FST_NAME,
P.LAST_NAME,
P.EMAIL_ADDR,
P.PERSON_UID,
PR.FST_NAME PRSP_FST_NAME,
PR.LAST_NAME PRSP_LAST_NAME,
M.X_BAPRO_DT_01,
M.X_BAPRO_DT_02,
M.X_BAPRO_DT_03,
M.X_BAPRO_MONTO,
M.X_BAPRO_NUM_01,
M.X_BAPRO_NUM_02,
M.X_BAPRO_NUM_03,
M.X_BAPRO_TEXT_01,
M.X_BAPRO_TEXT_02,
M.X_BAPRO_TEXT_03,
M.X_BAPRO_TEXT_04,
M.X_BAPRO_TEXT_05
FROM SIEBEL.S_SRC C
left join SIEBEL.S_CAMP_CON M on C.ROW_ID = M.SRC_ID
left join SIEBEL.S_DMND_CRTN_PRG T on T.ROW_ID = M.DCP_ID
left join SIEBEL.S_CONTACT P on P.ROW_ID = M.CON_PER_ID
left join SIEBEL.S_PRSP_CONTACT PR on PR.ROW_ID= M.PRSP_CON_PER_ID
WHERE
C.ROW_ID <> p_row_id
So, This query return about 100 records, i want to retrive 1000 records and i dont really care if the data is duplicated.
You can add a cross join:
FROM SIEBEL.S_SRC C
left join SIEBEL.S_CAMP_CON M on C.ROW_ID = M.SRC_ID
left join SIEBEL.S_DMND_CRTN_PRG T on T.ROW_ID = M.DCP_ID
left join SIEBEL.S_CONTACT P on P.ROW_ID = M.CON_PER_ID
left join SIEBEL.S_PRSP_CONTACT PR on PR.ROW_ID= M.PRSP_CON_PER_ID
cross join (select 1 as n from dual union all
select 2 from dual
. . .
) x
You can also use the VALUE clause to construct the little "muliplier"-table as shown below:
SELECT ...
FROM SIEBEL.S_SRC C
left join SIEBEL.S_CAMP_CON M on C.ROW_ID = M.SRC_ID
left join SIEBEL.S_DMND_CRTN_PRG T on T.ROW_ID = M.DCP_ID
left join SIEBEL.S_CONTACT P on P.ROW_ID = M.CON_PER_ID
left join SIEBEL.S_PRSP_CONTACT PR on PR.ROW_ID= M.PRSP_CON_PER_ID
cross join (values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10)) tabl(n)
When i run this query in window system behave correctly UNNSET
but when i run this query Linux behave different.unnset duplicate record list on different row
SELECT DISTINCT
"billing_billmanagement"."creation_date",
"billing_billmanagement"."bill_number",
unnest(array_agg(DISTINCT "inventory_product"."product_name")) AS "product",
unnest(array_agg(DISTINCT "services_service"."name")) AS "service"
FROM "billing_billmanagement"
INNER JOIN "users_staffuser" ON ("billing_billmanagement"."staff_id" = "users_staffuser"."id")
INNER JOIN "auth_user" ON ("users_staffuser"."user_id" = "auth_user"."id")
LEFT OUTER JOIN "billing_customerproductbill" ON ("billing_billmanagement"."id" = "billing_customerproductbill"."bill_id")
LEFT OUTER JOIN "inventory_product" ON ("billing_customerproductbill"."product_id" = "inventory_product"."id")
LEFT OUTER JOIN "billing_customerservicebill" ON ("billing_billmanagement"."id" = "billing_customerservicebill"."bill_id")
LEFT OUTER JOIN "services_service" ON ("billing_customerservicebill"."service_id" = "services_service"."id")
WHERE "billing_billmanagement"."creation_date" BETWEEN '2017-12-04' AND '2017-12-06'
GROUP BY billing_billmanagement.creation_date,
billing_billmanagement.bill_number
ORDER BY "billing_billmanagement"."creation_date" ASC
If getting duplicate rows is the problem, try this
SELECT billing_billmanagement.creation_date,
billing_billmanagement.bill_number,
inventory_product.product_name AS product,
services_service.name AS service
FROM billing_billmanagement
INNER JOIN users_staffuser ON (billing_billmanagement.staff_id = users_staffuser.id)
INNER JOIN auth_user ON (users_staffuser.user_id = auth_user.id)
LEFT OUTER JOIN billing_customerproductbill ON (billing_billmanagement.id = billing_customerproductbill.bill_id)
LEFT OUTER JOIN inventory_product ON (billing_customerproductbill.product_id = inventory_product.id)
LEFT OUTER JOIN billing_customerservicebill ON (billing_billmanagement.id = billing_customerservicebill.bill_id)
LEFT OUTER JOIN services_service ON (billing_customerservicebill.service_id = services_service.id)
WHERE billing_billmanagement.creation_date BETWEEN '2017-12-04' AND '2017-12-06'
GROUP BY 1,
2,
3,
4
ORDER BY 1 ASC;
When i run this query in window system behave correctly UNNSET
but when i run this query Linux behave different.unnset duplicate record list on different row
SELECT DISTINCT
"billing_billmanagement"."creation_date",
"billing_billmanagement"."bill_number",
unnest(array_agg(DISTINCT "inventory_product"."product_name")) AS "product",
unnest(array_agg(DISTINCT "services_service"."name")) AS "service"
FROM "billing_billmanagement"
INNER JOIN "users_staffuser" ON ("billing_billmanagement"."staff_id" = "users_staffuser"."id")
INNER JOIN "auth_user" ON ("users_staffuser"."user_id" = "auth_user"."id")
LEFT OUTER JOIN "billing_customerproductbill" ON ("billing_billmanagement"."id" = "billing_customerproductbill"."bill_id")
LEFT OUTER JOIN "inventory_product" ON ("billing_customerproductbill"."product_id" = "inventory_product"."id")
LEFT OUTER JOIN "billing_customerservicebill" ON ("billing_billmanagement"."id" = "billing_customerservicebill"."bill_id")
LEFT OUTER JOIN "services_service" ON ("billing_customerservicebill"."service_id" = "services_service"."id")
WHERE "billing_billmanagement"."creation_date" BETWEEN '2017-12-04' AND '2017-12-06'
GROUP BY billing_billmanagement.creation_date,
billing_billmanagement.bill_number
ORDER BY "billing_billmanagement"."creation_date" ASC
If getting duplicate rows is the problem, try this
SELECT billing_billmanagement.creation_date,
billing_billmanagement.bill_number,
inventory_product.product_name AS product,
services_service.name AS service
FROM billing_billmanagement
INNER JOIN users_staffuser ON (billing_billmanagement.staff_id = users_staffuser.id)
INNER JOIN auth_user ON (users_staffuser.user_id = auth_user.id)
LEFT OUTER JOIN billing_customerproductbill ON (billing_billmanagement.id = billing_customerproductbill.bill_id)
LEFT OUTER JOIN inventory_product ON (billing_customerproductbill.product_id = inventory_product.id)
LEFT OUTER JOIN billing_customerservicebill ON (billing_billmanagement.id = billing_customerservicebill.bill_id)
LEFT OUTER JOIN services_service ON (billing_customerservicebill.service_id = services_service.id)
WHERE billing_billmanagement.creation_date BETWEEN '2017-12-04' AND '2017-12-06'
GROUP BY 1,
2,
3,
4
ORDER BY 1 ASC;
I am a SQL Server beginner and so I have been using MS Access to create queries and then have been amending them for SQL Server.
I have created a query which includes a left join, which works perfectly in Access but when I copy the SQL code across to SQL Server it does not show the null values and I cannot work out why.
I want to show all of the attribute values whether they include a value or not. Can anyone help? The code is as follows:
SELECT DISTINCT
tbLease.LeaseTitle
, tbAttributeValue.AttributeTemplateDefinitionLinkID
, tbAttributeValue.Value
FROM
((((tbBusinessUnit
LEFT JOIN
tbAttributeValue ON tbBusinessUnit.BusinessUnitID = tbAttributeValue.ParentID)
INNER JOIN
tbBuildingLinkBusinessUnit ON tbBusinessUnit.BusinessUnitID = tbBuildingLinkBusinessUnit.BusinessUnitID)
INNER JOIN
tbBuilding ON tbBuildingLinkBusinessUnit.BuildingID = tbBuilding.BuildingID)
INNER JOIN
(tbUnitLocation
INNER JOIN
tbUnit ON tbUnitLocation.UnitID = tbUnit.UnitID)
ON tbBuilding.BuildingID = tbUnitLocation.LocationID)
INNER JOIN
tbLease ON tbUnit.UnitID = tbLease.UnitID
WHERE
(((tbAttributeValue.AttributeTemplateDefinitionLinkID) = 30
Or (tbAttributeValue.AttributeTemplateDefinitionLinkID) = 31
Or (tbAttributeValue.AttributeTemplateDefinitionLinkID) = 32));
Hard to say what you want without some examples but you might want this:
WHERE coalesce(tbAttributeValue.AttributeTemplateDefinitionLinkID,30) in (30,31,32);
This will give you items where AttributeTemplateDefinitionLinkID is null
(that is it did not join on the left join) OR is one of those 3 values.
Right now if you don't join with the left join it will not display that row because of the where condition, so your left join is the same as an inner join.
The NULL values you would normally see with a left join are getting filtered out by your WHERE clause.
Any time you add filters to a WHERE clause that apply to an outer joined table, it will effectively make it the same as an inner join unless you include NULL values as an option in your where clause as well.
SELECT DISTINCT
tbLease.LeaseTitle,
tbAttributeValue.AttributeTemplateDefinitionLinkID,
tbAttributeValue.Value
FROM
tbBusinessUnit
LEFT JOIN tbAttributeValue ON tbBusinessUnit.BusinessUnitID = tbAttributeValue.ParentID
INNER JOIN tbBuildingLinkBusinessUnit ON tbBusinessUnit.BusinessUnitID = tbBuildingLinkBusinessUnit.BusinessUnitID
INNER JOIN tbBuilding ON tbBuildingLinkBusinessUnit.BuildingID = tbBuilding.BuildingID
INNER JOIN tbUnitLocation ON tbBuilding.BuildingID = tbUnitLocation.LocationID
INNER JOIN tbUnit ON tbUnitLocation.UnitID = tbUnit.UnitID
INNER JOIN tbLease ON tbUnit.UnitID = tbLease.UnitID
WHERE
tbAttributeValue.AttributeTemplateDefinitionLinkID in (30, 31, 32)
or tbAttributeValue.AttributeTemplateDefinitionLinkID is null
Move the right table filters from where clause to ON condition when you are using Left Outer Join else Left join will be implicitly converted to INNER JOIN. Try this
SELECT DISTINCT tblease.leasetitle,
tbattributevalue.attributetemplatedefinitionlinkid,
tbattributevalue.value
FROM tbbusinessunit
LEFT JOIN tbattributevalue
ON tbbusinessunit.businessunitid = tbattributevalue.parentid
AND ( tbattributevalue.attributetemplatedefinitionlinkid IN
( 30, 31, 32 )
OR tbattributevalue.attributetemplatedefinitionlinkid IS
NULL )
INNER JOIN tbbuildinglinkbusinessunit
ON tbbusinessunit.businessunitid =
tbbuildinglinkbusinessunit.businessunitid
INNER JOIN tbbuilding
ON tbbuildinglinkbusinessunit.buildingid = tbbuilding.buildingid
INNER JOIN tbunitlocation
ON tbbuilding.buildingid = tbunitlocation.locationid
INNER JOIN tbunit
ON tbunitlocation.unitid = tbunit.unitid
INNER JOIN tblease
ON tbunit.unitid = tblease.unitid