I have a HISTORY table that has multiple rows for the same record and I am trying to get the latest (closest to today's date) record. I am attempting to group by the closest date but am having a difficult time. Please check out the query below and advise me.
SELECT DISTINCT *
FROM
(SELECT etc.Complaint.Complaint_ID AS Complaint_ID
FROM etc.Complaint) AS Qry1
LEFT JOIN
(SELECT etc.Complaint.Complaint_ID AS Complaint_ID,
o.Action_User AS Resolved_User,
o.Action_Date AS LastActionDate
FROM etc.Complaint
LEFT OUTER JOIN etc.History as o
ON SUBSTRING(Primary_Key,15,LEN(Primary_Key) - 15) = etc.Complaint.Complaint_ID
AND TABLE_NAME = 'Resolution' AND o.Field_Name = 'Resolved_Ind'
AND New_Value = 1) AS Qry2
ON Qry1.Complaint_ID = Qry2.Complaint_ID
ORDER BY Qry1.Complaint_ID, MAX(Qry2.LastActionDate)
does this change help?
SELECT DISTINCT *
FROM
(SELECT etc.Complaint.Complaint_ID AS Complaint_ID FROM etc.Complaint) AS Qry1
LEFT JOIN
(SELECT etc.Complaint.Complaint_ID AS Complaint_ID,
o.Action_User AS Resolved_User,
o.Action_Date AS LastActionDate
FROM etc.Complaint
LEFT OUTER JOIN
(
SELECT SUBSTRING(Primary_Key,15,LEN(Primary_Key) - 15) as hist_Complaint_ID , MAX(Action_Date) as Action_Date
FROM etc.History
WHERE Field_Name = 'Resolved_Ind'
GROUP BY SUBSTRING(Primary_Key,15,LEN(Primary_Key) - 15)
) as o
ON o.hist_Complaint_ID = etc.Complaint.Complaint_ID
AND TABLE_NAME = 'Resolution' AND o.Field_Name = 'Resolved_Ind'
AND New_Value = 1) AS Qry2
ON Qry1.Complaint_ID = Qry2.Complaint_ID
ORDER BY Qry1.Complaint_ID, Qry2.LastActionDate
You can use ROW_NUMBER and a CTE to get it:
WITH cte AS (
SELECT etc.Complaint.Complaint_ID AS Complaint_ID,
o.Action_User AS Resolved_User,
o.Action_Date AS LastActionDate
row_number() over (partition by etc.Complaint.Complaint_ID order by o.Action_Date desc) AS rn
FROM etc.Complaint
LEFT OUTER JOIN etc.History as o
ON SUBSTRING(Primary_Key,15,LEN(Primary_Key) - 15) = etc.Complaint.Complaint_ID
AND TABLE_NAME = 'Resolution' AND o.Field_Name = 'Resolved_Ind'
AND New_Value = 1
)
SELECT * FROM cte
WHERE rn = 1
Related
I have select query :
select
f.FirmaID,f.FirmaAdi,t.BelgeID,t.BelgeTuru,t.Tarih,t2.Plaka,t2.SasiNo,t4.AracMarka,t4.AracTip,case when x.Miktar=1 then 4 else x.miktar end as LastikAdet,
t3.CariKodu,t3.CariAdi,t3.CariGsm1,t3.CariGsm2,t3.CariTel1,t3.CariTel2,t3.CariAdres
from alsatr t WITH (NOLOCK)
left join Firma f WITH (NOLOCK) on f.FirmaID = t.AlsatrFirmaID
left join AracBilgi t2 WITH (NOLOCK) on t2.AracBilgiUID = t.AsAracBilgiUID and t2.AracBilgiID= t.AracBilgi
left join Cari t3 WITH (NOLOCK) on t.AsCariUID= t3.CariUID
left join Araclar t4 WITH (NOLOCK) on t4.AracID= t2.AB_AracID
outer apply
(select COUNT(1) soktak,Miktar FROM alsatD d WITH (NOLOCK)
where
d.AlsatDUID = t.AlsatrUID and d.AsStokKodu='LA-0001' group by Miktar) x
where
isnull(t3.FiloID,0) > 0
and t.Tarih between '04.30.2020' and '04.31.2020'
and t.BelgeTuru=55
and x.soktak > 0
and f.FirmaID not in (1,2,103,106,109,114)
order by t.Tarih desc, f.FirmaID desc, t.BelgeID desc
So I want to select all records between two days but I want to select one,latest record (maybe depends on last BelgeID ) on same day with same plate (plaka).
Enclose your query inside a CTE and use ROW_NUMBER() window function:
WITH cte AS (
<your query here>
)
SELECT
t.FirmaID, t.FirmaAdi, t.BelgeID, t.BelgeTuru, t.Tarih, t.Plaka, t.SasiNo, t.AracMarka,
t.AracTip, t.LastikAdet, t.CariKodu, t.CariAdi, t.CariGsm1, t.CariGsm2, t.CariTel1,
t.CariTel2, t.CariAdres
FROM (
SELECT *, ROW_NUMBER() OVER (PARTITION BY Tarih, Plaka ORDER BY BelgeID DESC) rn
FROM cte
) t
WHERE t.rn = 1
JOIN public.match m ON (s.stadium_id = m.stadium_id)
group
AS (
)
SELECT round_number
,stadium_name
,spectators
FROM (
SELECT round_number
,stadium_name
,spectators
,RANK() OVER (
PARTITION BY round_number ORDER BY spectators DESC
) AS rank1
FROM t1
) AS s1
WHERE rank1 = 1
<br>
Any smaller query than this?
I think you can just use window functions:
select ms.*
from (select m.round_number, s.stadium_name, m.no_spectators,
row_number() over (partition by m.round_number order by m.no_spectators desc) as seqnum
from public.stadium s join
public.match m
on s.stadium_id = m.stadium_id
) ms
where seqnum = 1
order by m.round_number;
I don't see why aggregation would be needed for the inner query.
You can use a subquery to get the max first
select m.round_number, s.stadium_name, MaxSpec
from public.stadium s
JOIN public.match m ON (s.stadium_id = m.stadium_id)
JOIN
(
select m.round_number, MAX(m.no_spectators) as MaxSpec
from public.stadium s
JOIN public.match m ON (s.stadium_id = m.stadium_id)
group by m.round_number
)a on m.no_spectators = a.MaxSpec
Just one more way to skin this cat. Throw your MAX(no_spectators) into a WHERE clause.
SELECT
m.round_number,
s.stadium_name,
m.no_spectators
FROM
PUBLIC.stadium s
JOIN
PUBLIC.match m
ON s.stadium_id = m.stadium_id
WHERE
m.no_spectators = (SELECT MAX(no_spectators) FROM PUBLIC.match);
That should do for an intro class.
I have a lenghtly query that can be shorten with the correct functionally (I beleive). Can we use existing functions such as Max Min Keep to make this query more efficient? My entire query is posted below.
For example: Can we remove the CTEs and use analytical functions such as max and min This would also elimate ranks and several joins
SQL:
WITH LAST_VALUE_BEFORE_START_DT AS (
SELECT DISTINCT * FROM(
SELECT
P.CL_ID,
HISTORYID,
H.MENT_DT,
H.ROLE AS MAX_ROLE,
H.PM_ID AS MAX_P_ID,
DENSE_RANK() OVER (PARTITION BY P.CL_ID ORDER BY H.MENT_DT DESC )AS RNK
FROM MANAGER_HISTORY H
INNER JOIN CP CCP ON H.CLIID = CCP.CLIID
INNER JOIN PROGRAM CP ON PROGRAMID = CP.PROGRAMID
WHERE 1=1
AND CP.TYPEID IN (13,200,11001)
AND H.ROLE = 'RED'
AND H.MENT_DT < START_DT
--AND P.CL_ID = 920917
)LAST_VALUE_BEFORE_START_DT_RNK
WHERE 1=1
AND RNK =1
)
,MIN_VALUE_BETWEEN_PROGRAM AS (
SELECT * FROM(
SELECT DISTINCT
P.CL_ID,
HISTORYID,
TRUNC(H.MENT_DT) AS MENT_DT,
H.ROLE AS MIN_ROLE,
H.PM_ID AS MIN_PM_ID,
DENSE_RANK() OVER (PARTITION BY P.CL_ID ORDER BY H.MENT_DT)AS RNK
FROM MANAGER_HISTORY H
INNER JOIN CP CCP ON H.CLIID = CCP.CLIID
INNER JOIN PROGRAM CP ON PROGRAMID = CP.PROGRAMID
WHERE 1=1
AND CP.TYPEID IN (13,200,11001)
AND H.ROLE = 'RED'
AND H.PM_ID IS NOT NULL
AND TRUNC(H.MENT_DT) BETWEEN TRUNC(START_DT) AND NVL(END_DT,SYSDATE)
--AND P.CL_ID = 920917
) MIN_VALUE_BETWEEN_PROGRAM_RNK
WHERE 1=1
AND RNK =1
)
SELECT * FROM (
SELECT
X.*,
DENSE_RANK() OVER (PARTITION BY CL_ID ORDER BY FIRST_ASSGN_DT,MENT_DT ) AS RNK
FROM(
SELECT DISTINCT
C.CL_ID,
P.CL_ID,
CP.PROGRAM,
START_DT,
END_DT,
H.ROLE,
H.MENT_DT,
H.PM_ID,
LVBS.MAX_ROLE,
LVBS.MAX_P_ID,
MVBP.MIN_ROLE,
MVBP.MIN_PM_ID
,CASE
WHEN H.MENT_DT < START_DT AND LVBS.MAX_ROLE = 'RED' AND LVBS.MAX_P_ID IS NOT NULL THEN TRUNC(START_DT)
WHEN H.MENT_DT BETWEEN START_DT AND NVL(END_DT,SYSDATE) AND H.ROLE = 'RED' AND H.PM_ID IS NOT NULL
THEN MVBP.MENT_DT
ELSE NULL --TESTING PURPOSES
END FIRST_ASSGN_DT
FROM MANAGER_HISTORY H
INNER JOIN CP CCP ON H.CLIID = CCP.CLIID
INNER JOIN CLIENT C ON CCP.CLIID = C.CLIID
INNER JOIN PROGRAM CP ON PROGRAMID = CP.PROGRAMID
LEFT JOIN LAST_VALUE_BEFORE_START_DT LVBS ON P.CL_ID = LVBS.CL_ID
LEFT JOIN MIN_VALUE_BETWEEN_PROGRAM MVBP ON P.CL_ID = MVBP.CL_ID
WHERE 1=1
AND CP.TYPEID IN (13,200,11001)
)X)Z
WHERE 1=1
AND Z.RNK = 1
I have these records below :
CustomerID | Name | Store | Quantity
1 | Elie | HO | 16
1 | Elie | S1 | 4
I would like to filter customers by taking only their max quantity?
I tried it with Max, but the problem I cannot render all the fields with it. If I add main.store in the first line, the second row shows.
Is there any solution?
Select main.CUSTOMER_ID, main.Name
from
(
Select Name = cus.FIRST_NAME + ' ' + cus.LAST_NAME,
Store = cs.NAME
,Transaction_Number = count(ts.TRANSACTION_SUMMARY_ID)
,cus.CUSTOMER_ID
from TRANSACTION_SUMMARY ts
inner join dbo.CUSTOMER cus
on ts.CUSTOMER_ID = cus.CUSTOMER_ID
inner join dbo.CORPORATE_STORE cs
on ts.CORPORATE_STORE_ID = cs.CORPORATE_STORE_ID
Group by cus.CUSTOMER_ID
,cus.FIRST_NAME
,cus.LAST_NAME
,cs.Name
) as main
Group by CUSTOMER_ID
,main.Name
order by main.CUSTOMER_ID
This is a good use of window functions:
with t as (
Select Name = cus.FIRST_NAME + ' ' + cus.LAST_NAME,
Store = cs.NAME,
Transaction_Number = count(ts.TRANSACTION_SUMMARY_ID) , cus.CUSTOMER_ID
from TRANSACTION_SUMMARY ts
inner join dbo.CUSTOMER cus on ts.CUSTOMER_ID = cus.CUSTOMER_ID
inner join dbo.CORPORATE_STORE cs on ts.CORPORATE_STORE_ID = cs.CORPORATE_STORE_ID
Group by cus.CUSTOMER_ID, cus.FIRST_NAME, cus.LAST_NAME, cs.Name
)
select name, store, Transaction_Number, CUSTOMER_ID
from (select t.*,
row_number() over (partition by customer_id order by transaction_number desc) as seqnum
from t
) t
where seqnum = 1;
You can actually dispense with the subquery. However, using window functions with aggregations looks funny at first:
with t as (
Select Name = cus.FIRST_NAME + ' ' + cus.LAST_NAME,
Store = cs.NAME,
Transaction_Number = count(ts.TRANSACTION_SUMMARY_ID) , cus.CUSTOMER_ID,
row_number() over (partition by cus.CUSTOMER_ID
order by count(ts.TRANSACTION_SUMMARY_ID) desc
) as seqnum
from TRANSACTION_SUMMARY ts
inner join dbo.CUSTOMER cus on ts.CUSTOMER_ID = cus.CUSTOMER_ID
inner join dbo.CORPORATE_STORE cs on ts.CORPORATE_STORE_ID = cs.CORPORATE_STORE_ID
Group by cus.CUSTOMER_ID, cus.FIRST_NAME, cus.LAST_NAME, cs.Name
)
select name, store, Transaction_Number, CUSTOMER_ID
from t
where seqnum = 1;
Please try:
select * From tbl a
where a.Quantity=
(select MAX(b.Quantity) from tbl b where a.CustomerID=b.CustomerID)
what you want is
select customer_id, max( quantity )
from main
group by customer_id
then you can use this to join to itself if you want
select *
from main
, (
select customer_id, max( quantity ) qty
from main
group by customer_id
) m
where main.customer_id = m.customer_id
and main.quantity = m.qty
Obviously, name has no business being in this table, but you included it, so I did too...
SELECT x.*
FROM my_table x
JOIN
( SELECT customerid
, name
, MAX(quantity) max_quantity
FROM my_table
GROUP
BY customerid
, name
) y
ON y.customerid = x.customerid
AND y.name = x.name
AND y.max_quantity = x.quantity;
It should return some fields from the SystemTable and the LoadStatus column of the latest record in the ProcessHistory table. The relationship is 1 to many:
SELECT ST.[SystemDetailID], ST.[SystemName], LH.LatestLoadStatus
FROM [SystemTable] AS ST
LEFT OUTER JOIN
(
SELECT LHInner.LoadStatus AS LatestLoadStatus, LHInner.SystemDetailID FROM [dbo].[LoadHistory] AS LHInner
WHERE LHInner.LoadHistoryID in
(
SELECT LatestLoadHisotoryID FROM
(
SELECT MAX(LoadHistoryID) as LatestLoadHisotoryID, SystemDetailID FROM [dbo].[LoadHistory]
GROUP BY SystemDetailID
) l
)
) AS LH ON ST.SystemDetailID = LH.SystemDetailID
Thanks,
This is a greatest-n-per-group query.
One Approach
SELECT ST.[SystemDetailID],
ST.[SystemName],
LH.LatestLoadStatus
FROM [SystemTable] AS ST
OUTER APPLY (SELECT TOP 1 *
FROM [dbo].[LoadHistory] LH
WHERE ST.SystemDetailID = LH.SystemDetailID
ORDER BY LoadHistoryID DESC) LH
You can also use row_number
WITH LH
AS (SELECT *,
ROW_NUMBER() OVER (PARTITION BY SystemDetailID
ORDER BY LoadHistoryID DESC) RN
FROM [dbo].[LoadHistory])
SELECT ST.[SystemDetailID],
ST.[SystemName],
LH.LatestLoadStatus
FROM [SystemTable] AS ST
LEFT JOIN LH
ON LH.SystemDetailID = ST.SystemDetailID
AND LH.RN = 1
SELECT ST.[SystemDetailID], ST.[SystemName], LH.LatestLoadStatus
FROM [SystemTable] AS ST
INNER JOIN [dbo].[LoadHistory] AS LH
ON ST.SystemDetailID = LH.SystemDetailID
AND LH.LoadHistoryID IN
(SELECT MAX(LoadHistoryID) as LoadHistoryID
FROM [dbo].[LoadHistory]
GROUP BY SystemDetailID )