I have a sql query
select distinct
Process.ReportLogProcessID as [Process.ReportLogProcessID],
Process.ProcessTitle as [Process.ProcessTitle],
CAST(User0.PrimaryEmail AS nvarchar(max)) as [Process_Contacts.IsPrimaryContact]
from
ReportProcess as Process inner join
ReportProcessContact as ReportProcessContact0 on
((ReportProcessContact0.SessionID = Process.SessionID)) left outer join
[User] as User0 on
((ReportProcessContact0.ReferenceID = User0.UserID)) left outer join
[Group] as Group0 on
((ReportProcessContact0.ReferenceID = Group0.GroupID and
ReportProcessContact0.ReferenceType = 2))
order by
[Process.ProcessTitle] asc
and it give below result
if you see it returns two rows with the same 'Process Title'-'Testing123' is there any way I can distinct this in spite of whatever be the 'Process Contact'.
Is there any way to distinct the result on the base of particular column?
In your query [Process_Contacts.IsPrimaryContact] column have different emails for both records. If you remove that column then only it will distinct records.
UPDATE : You can try like :
select
Process.ReportLogProcessID as [Process.ReportLogProcessID],
Process.ProcessTitle as [Process.ProcessTitle],
MAX(CAST(User0.PrimaryEmail AS nvarchar(max))) as [Process_Contacts.IsPrimaryContact]
from ReportProcess as Process
inner join ReportProcessContact as ReportProcessContact0 on
((ReportProcessContact0.SessionID = Process.SessionID))
left outer join [User] as User0 on
((ReportProcessContact0.ReferenceID = User0.UserID))
left outer join [Group] as Group0 on
((ReportProcessContact0.ReferenceID = Group0.GroupID and
ReportProcessContact0.ReferenceType = 2))
group by Process.ReportLogProcessID, Process.ProcessTitle
order by [Process.ProcessTitle] asc
Related
I have this query and it's returning the results I expect, however, as you can see it's really crude & difficult to read.
I tried Inner Joins and FIRST_VALUE approaches but wasn't getting the right results so resorted to temp tables (just because I find it easier to verify results that way).
The issue is I get a StartWayPoint and EndWayPoint from dbo.Trips which is actually just the first and last points entered into the GPSWaypoints table (for a particular trip / vehicle).
Those points aren't entered in UTCTime order so I need to take the StartWayPoint, EndWayPoint & Vehicle, get results BETWEEN those waypoint values from dbo.GPSWaypoints table, sort that by UTCTime desc and the first Location string there is my true EndLocationString.
Hope that makes sense, I may have over complicated it ....I feel as though the answer is either an Inner Join or a SubQuery, my SQL skills aren't that hot though so any help appreciated.
DROP TABLE IF EXISTS #temp1, #temp2
USE XXX
DECLARE #StartWayPoint bigint, #EndWaypoint bigint, #Vehicle smallint, #TripId smallint = 9863;
SELECT t.Id,
t.Date,
t.StartWayPoint,
t.EndWayPoint,
t.Distance,
t.Alarms,
t.FuelConsumption,
t.Vehicle,
gpsStart.UtcTime as TripStart,
gpsEnd.UtcTime as TripEnd,
gpsStart.LocationString as StartLocationString,
gpsEnd.LocationString as EndLocationString
INTO #temp1
FROM dbo.Trips t
LEFT JOIN dbo.GPSWaypoints gpsStart on StartWaypoint = gpsStart.Id
LEFT JOIN dbo.GPSWaypoints gpsEnd on EndWaypoint = gpsEnd.Id
LEFT JOIN dbo.Operators o on Driver = o.Id
LEFT JOIN dbo.Vehicles v on t.Vehicle = v.Id
WHERE t.id = #TripId
SELECT #StartWayPoint = (SELECT StartWaypoint FROM #temp1), #EndWaypoint = (SELECT EndWaypoint FROM #temp1), #Vehicle = (SELECT Vehicle FROM #temp1)
SELECT TOP 1 g.Id,
g.LocationString,
g.Vehicle
INTO #temp2
FROM dbo.GPSWaypoints g
WHERE Id BETWEEN #StartWayPoint AND #EndWaypoint
AND Vehicle = #Vehicle
order by UtcTime desc
SELECT t1.*,
t2.Id as TRUE_EndWayPoint,
t2.LocationString as TRUE_EndLocationString
FROM #temp1 t1
LEFT JOIN #temp2 t2 on t2.Vehicle = t1.
Results from #temp1
Results from #temp2 (with TRUE EndWayPoint and EndLocationString
Think I've answered it for myself with a nested query, must have just had an error in my earlier attempts ....still open to suggestions for improvement though.
select t.Id,
t.Date,
t.StartWayPoint,
t.EndWayPoint,
t.Distance,
t.Alarms,
t.FuelConsumption,
t.Vehicle,
gpsStart.UtcTime as TripStart,
gpsEnd.UtcTime as TripEnd,
gpsStart.LocationString as StartLocationString,
( select top 1 (g.LocationString)
from dbo.GPSWaypoints g
where Id BETWEEN gpsStart.Id AND gpsEnd.Id
AND Vehicle = v.Id
order by UtcTime desc
) as EndLocationString
from dbo.Trips t
left join dbo.GPSWaypoints gpsStart on StartWaypoint = gpsStart.Id
left join dbo.GPSWaypoints gpsEnd on EndWaypoint = gpsEnd.Id
left join dbo.Operators o on Driver = o.Id
left join dbo.Vehicles v on t.Vehicle = v.Id
where t.id = 9863
I have difficulty joining two tables that look like the following:
The main table PMEOBJECT which has a unique key named OBJECTID and
has in total 12768 rows.
Then I want to join PMEOBJECTVALIDITY on it which has an n:1 relationship with PMEOBJECT, since it has more rows,
because it saves the changes over time of PMEOBJECT (i.e. when a certain object is not
valid anymore), this one has 12789 rows (meaning only 21 objects
changed over time). However, I only want to have the current last
VALIDFROM date shown in the query. This all works fine.
Then the trouble starts when I want to join PMEOBJECTDIMENSION, which has an
n:1 relationship with PMEOBJECTVALIDITY and has 36737 rows in total.
SELECT
PMEOBJECT.OBJECTID
,PMEOBJECTVALIDITY.VALIDFROM
,PMEOBJECTDIMENSION.DIMENSION2_
FROM PMEOBJECT
LEFT JOIN PMEOBJECTVALIDITY
ON PMEOBJECTVALIDITY.OBJECTID = PMEOBJECT.OBJECTID
AND PMEOBJECTVALIDITY.DATAAREAID = PMEOBJECT.DATAAREAID
INNER JOIN(
SELECT
OBJECTID,
MAX(VALIDFROM) AS NEWFROMDATE,
MAX(VALIDTO) AS NEWTODATE
FROM PMEOBJECTVALIDITY B
GROUP BY OBJECTID
) B
ON PMEOBJECTVALIDITY.OBJECTID = B.OBJECTID
AND PMEOBJECTVALIDITY.VALIDFROM = B.NEWFROMDATE
LEFT JOIN PMEOBJECTDIMENSION
ON PMEOBJECTDIMENSION.OBJECTVALIDITYID = PMEOBJECTVALIDITY.RECID
AND PMEOBJECTDIMENSION.DATAAREAID = PMEOBJECTVALIDITY.DATAAREAID
INNER JOIN(
SELECT
OBJECTVALIDITYID,
MAX(VALIDFROM) AS NEWFROMDATE_2
FROM PMEOBJECTDIMENSION C
GROUP BY OBJECTVALIDITYID
) C
ON PMEOBJECTDIMENSION.OBJECTVALIDITYID = C.OBJECTVALIDITYID
AND PMEOBJECTDIMENSION.VALIDFROM = C.NEWFROMDATE_2
Results in query per step:
SELECT PMEOBJECT: 12768 rows
LEFT JOIN PMEVALIDITY: 12789 rows
INNER JOIN PMEVALIDITY: 12768 rows
LEFT JOIN PMEOBJECTDIMENSION: 36737 rows
INNER JOIN PMEOBJECTDIMENSION: 12729 rows
I want the end result again to have the same 12768 rows, I don't want any ObjectId to be left out.
What am I missing here?
Kind regards,
Igor
Following might help:
from PMEOBJECTDIMENSION onwards:
LEFT JOIN (SELECT PMEOBJECTDIMENSION.OBJECTVALIDITYID, PMEOBJECTDIMENSION.DATAAREAID
FROM PMEOBJECTDIMENSION
INNER JOIN(SELECT OBJECTVALIDITYID, MAX(VALIDFROM) AS NEWFROMDATE_2
FROM PMEOBJECTDIMENSION C
GROUP BY OBJECTVALIDITYID
) C
ON PMEOBJECTDIMENSION.OBJECTVALIDITYID = C.OBJECTVALIDITYID
AND PMEOBJECTDIMENSION.VALIDFROM = C.NEWFROMDATE_2
)X
ON X.OBJECTVALIDITYID = PMEOBJECTVALIDITY.RECID
AND X.DATAAREAID = PMEOBJECTVALIDITY.DATAAREAID
and select the distinct records if duplicates present.
The INNER JOINs are filtering out records- what you want is that the LEFT JOIN table (PMEOBJECTVALIDITY and PMEOBJECTDIMENSION) should only include records that have at least a match on the INNER JOIN queries (alias B and C). You can accomplish this with by nesting the INNER JOIN with the LEFT JOIN, generally done as follows:
SELECT *
FROM A
LEFT JOIN B
INNER JOIN C
ON B.ID = C.BID
ON A.ID = B.AID
Now B is INNER JOINed on C and will only contain records that have a match in C, but will preserve the LEFT JOIN not remove any records from A.
In your case, you can simply move the ON clause from the LEFT JOIN to the end of the following INNER JOIN.
SELECT
PMEOBJECT.OBJECTID
,PMEOBJECTVALIDITY.VALIDFROM
,PMEOBJECTDIMENSION.DIMENSION2_
FROM PMEOBJECT
LEFT JOIN PMEOBJECTVALIDITY
INNER JOIN(
SELECT
OBJECTID,
MAX(VALIDFROM) AS NEWFROMDATE,
MAX(VALIDTO) AS NEWTODATE
FROM PMEOBJECTVALIDITY B
GROUP BY OBJECTID
) B
ON PMEOBJECTVALIDITY.OBJECTID = B.OBJECTID
AND PMEOBJECTVALIDITY.VALIDFROM = B.NEWFROMDATE
ON PMEOBJECTVALIDITY.OBJECTID = PMEOBJECT.OBJECTID
AND PMEOBJECTVALIDITY.DATAAREAID = PMEOBJECT.DATAAREAID --here it is!
LEFT JOIN PMEOBJECTDIMENSION
INNER JOIN(
SELECT
OBJECTVALIDITYID,
MAX(VALIDFROM) AS NEWFROMDATE_2
FROM PMEOBJECTDIMENSION C
GROUP BY OBJECTVALIDITYID
) C
ON PMEOBJECTDIMENSION.OBJECTVALIDITYID = C.OBJECTVALIDITYID
AND PMEOBJECTDIMENSION.VALIDFROM = C.NEWFROMDATE_2
ON PMEOBJECTDIMENSION.OBJECTVALIDITYID = PMEOBJECTVALIDITY.RECID
AND PMEOBJECTDIMENSION.DATAAREAID = PMEOBJECTVALIDITY.DATAAREAID --I'm here
I edited the following query based on this page:
Selecting a Record With MAX Value
Select query :
select
Users.Id, Users.[Name], Users.Family, Users.BirthDate,
Users.Mobile, Users.[Description], Users.Email,
Users.UserName, Users.fatherName,
Users.archiveNumber, Users.[Address], Users.IsMarried,
Users.Mazhab,
Cities.CityName, Religions.PersianName, Users.Date_insert,
Users.ImageName,
MaghtaeTahsilis.[Name] as MaghtaeTahsilisName,
FieldStudies.[Name] as FieldStudiesName,
Eductionals.Institute, Eductionals.Moaddal,
Eductionals.FromYear, Eductionals.ToYear
from
Users
left outer join
Eductionals on Users.id = Eductionals.UserID
left outer join
MaghtaeTahsilis on Eductionals.MaghtaeID = MaghtaeTahsilis.ID
left outer join
Cities on Users.City_Id = Cities.Id
left outer join
Religions on Users.Relegion_ID = Religions.ID
left outer join
FieldStudies on Eductionals.FieldStudy_ID = FieldStudies.ID
where
Users.UserName = #code_melli
and Eductionals.MaghtaeID = (select MAX(MaghtaeID) from Eductionals
where Eductionals.UserID = Users.Id)
This command works correctly in choosing MAX value, But if the following statement has a NULL value, no row are returned. I want to show NULL value if it is NULL.
Your left outer joins are being turned into inner joins by the where conditions. Your query should look like:
select u.Id, u.[Name], u.Family, u.BirthDate, u.Mobile, u.[Description], u.Email, u.UserName, u.fatherName,
u.archiveNumber, u.[Address], u.IsMarried, u.Mazhab, c.CityName, r.PersianName, u.Date_insert, u.ImageName,
mt.[Name] As MaghtaeTahsilisName, fs.[Name] As FieldStudiesName, e.Institute, e.Moaddal, e.FromYear, e.ToYear
from Users u left outer join
Eductionals e
on u.id = e.UserID and
e.MaghtaeID = (select MAX(e2.MaghtaeID)
from Eductionals e2
where e2.UserID = u.Id
) left outer join
MaghtaeTahsilis mt
on e.MaghtaeID = mt.ID left outer join
Cities c
on u.City_Id = c.Id left outer join
Religions r
on u.Relegion_ID = r.ID left outer join
FieldStudies fs
on e.FieldStudy_ID = fs.ID
where u.UserName = #code_melli ;
Conditions on the first table -- in a chain of left joins should be in the where clause. On subsequent tables in the on clauses.
You'll notice that I also added table aliases so the query is easier to write and to read.
You can also use window functions:
from Users u left outer join
(select e2.*,
row_number() over (partition by e2.userId order by e2.MaghtaeID desc) as seqnum
from Eductionals e2
) e
on u.id = e.UserID and
e.seqnum = 1 left outer join
. . .
Reason for returning zero records when second query returns NULL is, when second query returns NULL, your SQL syntax become like this
And Eductionals.MaghtaeID=NULL
And probably Dbtable Educationals holds NULL values for field MaghtaeID.
So SQL fails above syntax and thus returns zero records.
Correct syntax for checking NULL values would be
And Eductionals.MaghtaeID is NULL
So please modify where condition in your query as follows which will return desired result.
where Users.UserName = #code_melli AND isnull(Eductionals.MaghtaeID,0) = isnull((select MAX(MaghtaeID) from Eductionals where Eductionals.UserID = Users.Id),0)
SELECT DISTINCT(t1.Ticker),t2.SecurityID,t2.ClosePrice,t2.QuoteDateTime FROM [Hub].[SecurityMaster].[SecurityMasterDetails] as t1
INNER JOIN [Hub].[SecurityMaster].[SecurityPrices] as t2
ON t2.SecurityID =t1.SecurityID
WHERE t2.QuoteDateTime IN (SELECT max(QuoteDateTime) FROM [Hub].[SecurityMaster].[SecurityPrices]) AND t1.SecurityTypeName = 'REIT'
I get an output with no data. The subquery doesn't run along with the other filter in the WHERE clause. I am not sure what I am doing wrong. Can somebody please help!
If you are trying to get the lastest row from SecurityPrices for each Ticker, one option is to use cross apply():
select --distinct /* distinct not needed if `Ticker` is unique on `smd`
smd.Ticker
, sp.SecurityID
, sp.ClosePrice
, sp.QuoteDateTime
from [Hub].[SecurityMaster].[SecurityMasterDetails] as smd
cross apply (
select top 1
i.SecurityID
, i.ClosePrice
, i.QuoteDateTime
from [Hub].[SecurityMaster].[SecurityPrices] i
where i.SecurityID = smd.SecurityID
order by i.QuoteDateTime desc
) as sp
where SecurityTypeName = 'REIT' /* which table does this column belong to? */
I think your query would be
SELECT DISTINCT TOP 1 WITH TIES
t1.Ticker,
t2.SecurityID,
t2.ClosePrice,
t2.QuoteDateTime
FROM [Hub].[SecurityMaster].[SecurityMasterDetails] as t1
INNER JOIN [Hub].[SecurityMaster].[SecurityPrices] as t2 ON t2.SecurityID =t1.SecurityID
WHERE SecurityTypeName = 'REIT'
ORDER BY t2.QuoteDateTime DESC
You aren't getting results because the max(QuoteDateTime) record doesn't have SecurityTypeName = 'REIT'. I think you want the max(QuoteDateTime) for this SecurityTypeName, so this can be done with an INNER JOIN.
SELECT DISTINCT
(t1.Ticker),
t2.SecurityID,
t2.ClosePrice,
t2.QuoteDateTime
FROM [Hub].[SecurityMaster].[SecurityMasterDetails] as t1
INNER JOIN [Hub].[SecurityMaster].[SecurityPrices] as t2
ON t2.SecurityID =t1.SecurityID
INNER JOIN
(SELECT max(QuoteDateTime) DT FROM [Hub].[SecurityMaster].[SecurityPrices]) P on P.DT = t2.QuoteDateTime
WHERE SecurityTypeName = 'REIT'
EDIT
Your data doesn't have what you think it does, I suspect. Here is how you can check...
--Find the SecurityID that matches the max date
SELECT
SecurityID ,
max(QuoteDateTime) DT
FROM [Hub].[SecurityMaster].[SecurityPrices]
GROUP BY SecurityID
--I'm betting this ID isn't in your SecurityMasterDetails where the Type is REIT
SELECT DISTINCT
SecurityID
FROM SecurityMasterDetails
WHERE SecurityTypeName = 'REIT'
Since the SecurityID returned in the first query isn't in the second query result set, you are going to get NULL results.
I'm trying to display the data so that only one line is displayed per customer, i'm having trouble with trying to achieve that with my code as its returning all records, can anyone help
SELECT customerOrdrs.NAME AS 'Name',
customerOrdrs.currentbalance -
Sum(COALESCE(customerOrdrs.revisedbalance, 0)) AS 'RevisedBalance',
sold AS 'NumberOfItemsSold'
FROM customers,
(SELECT c.NAME AS NAME,
c.balance AS CurrentBalance,
i.qty AS RevisedBalance,
( Min(s.price) * i.qty ) AS Sold
FROM customers c
INNER JOIN sales o
ON c.NAME = o.custname
INNER JOIN purchases i
ON i.orderno = o.orderno
INNER JOIN contracters s
ON i.item = s.item
GROUP BY c.NAME,
c.balance,
i.qty) customerOrdrs
GROUP BY customerOrdrs.NAME,
customerOrdrs.currentbalance,
sold
I'm not sure how your data looks but I have reformatted the query and there are a few things I've noticed off the bat.
I have removed the subquery as I don't believe it is necessary - in addition your original query is referring to customer table twice without defining a join
Select [C].[Name] As [Name]
, [CurrentBalance] = [C].[Balance]
, [RevisedBalance] = [C].[Balance] - Sum([P].[Qty])
, [Sold] = ( Min([CO].[Price]) * sum([P].[Qty]) )
From [CUSTOMERS] [C]
Inner Join [Sales] [s]
On [C].[Name] = [s].[custName]
Inner Join [Purchases] [P]
On [P].[OrderNo] = [s].[OrderNo]
Inner Join [Contracters] [CO]
On [P].[Item] = [CO].[Item]
Group By [C].[Name]
, [C].[Balance];