Table - BASECASE(CaseNumber, PatientID)
CaseNumber------PatientID
S100---------------P201
S101---------------P201
S102---------------P200
S103---------------P199
S104---------------P201
2nd table
Table - CHECKUP(CheckupNumber, CaseNumber)
CheckupNumber------CaseNumber
C301-------------------S100
C302-------------------S100
C303-------------------S101
C304-------------------S102
C305-------------------S103
SQL Code
SELECT CaseNumber FROM BASECASE
& COUNT(CaseNumber)FROM CHECKUP, WHERE PatientID='P201'
If the CaseNumber is Not present in CHECKUP, COUNT(CaseNumber)[which will be null] should return value 0.
Expected result.
CaseNumber-----No.Of Checkups
S100------------------2
S101------------------1
S104------------------0
How to sort out this problem?
you need to use left join and group by
select B.caseNumber, ISNULL(count(C.checkupNumber) ,0)
from BaseTable B
left join Checkup C
on B.caseNumber = C.caseNumber
where B.patientId ='P201'
group by B.caseNumber
Join with Group BY
select BC.Casenumber,isnull(COUNT(BC.Casenumber),0) CNT from BaseCase BC
left
join CheckUp Ch
on BC.CasetNumber=Ch.CaseNumber
group by BC.Casenumber
You need to use Left Join with Group by
SELECT cn.cno,Count(cp.cno) as NoofCheckup FROM casenumber cn LEFT JOIN checkup cp ON cn.cno=cp.cno
WHERE cn.patientid='P201'
GROUP BY cn.cno
Related
I want to include tcon.Inductive_Injection_Hours, tcon.Capacitive_Injection_Hours without applying group by. How can I do that?
SELECT
bp.Serial_Number,
tcon.Serial_Number AS ConverterSerialNumber,
MAX(tcon.Time_Stamp) AS DateStamp,
tcon.Inductive_Injection_Hours,
tcon.Capacitive_Injection_Hours
FROM
dbo.Bypass AS bp
INNER JOIN
dbo.Converter AS c ON bp.Bypass_ID = c.Bypass_ID
INNER JOIN
dbo.Converter_Tel_Data AS tcon ON c.Converter_ID = tcon.Converter_ID
WHERE
(bp.Site_ID = 7)
GROUP BY
bp.Serial_Number, tcon.Serial_Number,
tcon.Inductive_Injection_Hours, tcon.Capacitive_Injection_Hours
ORDER BY
ConverterSerialNumber
I have figured it out.
select [data].Serial_Number,Time_Stamp,Inductive_Injection_Hours,Capacitive_Injection_Hours,b.Serial_Number from Converter_Tel_Data as [data]
inner join dbo.Converter AS c On [data].Converter_ID = c.Converter_ID
inner join dbo.Bypass as b on c.Bypass_ID = b.Bypass_ID
WHERE
(Time_Stamp = (SELECT MAX(Time_Stamp) FROM Converter_Tel_Data WHERE Converter_ID = [data].Converter_ID)) And ([data].Site_ID=7)
ORDER BY [data].Serial_Number
You can use row_number - either in a CTE/derived table or using a trick with TOP 1.
Select Top 1 With Ties
bp.Serial_Number
, tcon.Serial_Number AS ConverterSerialNumber
, tcon.Time_Stamp AS DateStamp
, tcon.Inductive_Injection_Hours
, tcon.Capacitive_Injection_Hours
From dbo.Bypass AS bp
Inner Join dbo.Converter AS c On bp.Bypass_ID = c.Bypass_ID
Inner Join dbo.Converter_Tel_Data AS tcon ON c.Converter_ID = tcon.Converter_ID
Where bp.Site_ID = 7
Order By
row_number() over(Partition By bp.Serial_Number Order By tcon.Time_Stamp desc)
This should return the latest row from the tconn table for each bp.Serial_Number.
I have to get the total of Customer Loan from 3 tables the two tables are given loan to sum and the other subtract the paid amount and the tables have Customer ID in common. so far I can get the result only if the Customer ID exist in all tables but if it doesn't exist in one table I won't get Customer in my result. or I get NULL customer IDs when I anchor to the customer.
SELECT
AS1.C_ID AS [Customer ID],
ISNULL(AS1.OldCustomerLoan, 0) AS [Old Loan],
ISNULL(AS2.NewGivenLoan, 0) AS [New Given Loan],
ISNULL(AS3.LoanPaid, 0) AS [PaidLoanAmount],
(ISNULL(AS1.OldCustomerLoan, 0) +
ISNULL(AS2.NewGivenLoan, 0) -
ISNULL(AS3.LoanPaid,0) ) AS Total
FROM
Customer C
LEFT OUTER JOIN
(SELECT
MOC.C_ID,
SUM(MOC.Quantity) AS OldCustomerLoan
FROM
Money_On_Customer MOC (NOLOCK)
GROUP BY
MOC.C_ID) AS1
ON c.C_Id = AS1.C_Id
LEFT OUTER JOIN
(SELECT
NGL.C_ID
,SUM(NGL.G_Take_Loan) AS NewGivenLoan
FROM
Given_Loan NGL
GROUP BY
NGL.C_ID) AS2
ON c.C_Id = AS2.C_Id
LEFT OUTER JOIN
(SELECT
GLP.C_ID, SUM(GLP.G_P_Loan) AS LoanPaid
FROM
Given_Loan_Paid GLP
GROUP BY
GLP.C_ID ) AS3
ON c.C_Id = AS3.C_Id
Here Is a picture of my two results:
When I get NULL Customer IDs
When I don't get All the Customers
You need to use c.c_id for the first column
In order to only get records where they exist in at least one of the tables you can add this to you query, just put you current query in place of the dots, and add the leftid col
Select *
From
(Select c.c_id custonerid,
Coalesce(Coalesce(as1.c_id,as2.c_id),as3.c_id) leftid,......
From ....
) ilv
Where leftid is not null
You might be able to just add
Where coalesce(coalesce(as1.c_id,as2.c_id),as3.c_id) is not null
To then end of your query
#Ab Bennett's answer is right,
because you should use your main(master) table's primary key column
if Customer ID is not available in as1 (Money_On_Customer) it will show null.
Hope you understand my explanation.
UPDATE:
and use following for getting customer id
COALESCE(c.C_Id, AS1.C_Id, AS2.C_Id)
you will get first not null Customer ID
Here is My answer with the help of #Ab Bennett
Select *
From
(
SELECT
C.C_Name AS [Customer ID],
ISNULL(AS1.OldCustomerLoan, 0) AS [Old Loan],
ISNULL(AS2.NewGivenLoan, 0) AS [New Given Loan],
ISNULL(AS3.LoanPaid, 0) AS [PaidLoanAmount],
(ISNULL(AS1.OldCustomerLoan, 0) +
ISNULL(AS2.NewGivenLoan, 0) -
ISNULL(AS3.LoanPaid,0) ) AS Total
FROM
Customer C
LEFT OUTER JOIN
(SELECT
MOC.C_ID,
SUM(MOC.Quantity) AS OldCustomerLoan
FROM
Money_On_Customer MOC (NOLOCK)
GROUP BY
MOC.C_ID) AS1
ON c.C_Id = AS1.C_Id
LEFT OUTER JOIN
(SELECT
NGL.C_ID
,SUM(NGL.G_Take_Loan) AS NewGivenLoan
FROM
Given_Loan NGL
GROUP BY
NGL.C_ID) AS2
ON c.C_Id = AS2.C_Id
LEFT OUTER JOIN
(SELECT
GLP.C_ID, SUM(GLP.G_P_Loan) AS LoanPaid
FROM
Given_Loan_Paid GLP
GROUP BY
GLP.C_ID ) AS3
ON c.C_Id = AS3.C_Id) ilv
Where not ([Old Loan] = 0 and [New Given Loan]=0 and PaidLoanAmount =0 )
I have a table with transactions and a statement that is giving out the most used creditcards. AMEX, VISA ...
SELECT CARDBRAND,
count(*) as cardused
from INFO c
left join paytb t
on c.CONT_ID = t.CONT_ID
GROUP BY CARDBRAND
ORDER BY 2 desc;
Now I want to add a column with the MERCHNAME of the shops that were most often found in a transaction with the creditcard:
CARDBRAND CARDUSED MERCHNAME
----------------------------------------
AMEX 182345 Gasstation
VISA 70943 ....
SELECT CARDBRAND
,count(*) as cardused
,MERCHNAME
FROM INFO c
LEFT JOIN paytb t
on c.CONT_ID = t.CONT_ID
GROUP BY CARDBRAND,
MERCHNAME
ORDER BY count(*) desc;
suggestion: It is always recommended to use the ColumnName or function in this case in the ORDERBY clause rather than the column number to avoid any confusion.
First, your correct query should be:
select c.cardbrand, count(t.cont_id) as cardused
from info c left join
paytb t
on c.cont_id = t.cont_id
group by c.cardbrand;
Otherwise, you will never get "0" for card brands that are not used.
For the merchant information, you can use window functions:
select cardbrand, total_cardused, merchant
from (select c.cardbrand, t.merchant, count(t.cont_id) as cardused,
sum(count(t.cont_id)) over (partition by c.cardbrand) as total_cardused,
row_number() over (partition by c.cardbrand order by count(t.cont_id) desc) as seqnum
from info c left join
paytb t
on c.cont_id = t.cont_id
group by c.cardbrand, t.merchant
) cm
where seqnum = 1
group by c.cardbrand;
I have a query returning data for several dates.
I want to return only record with the most recent date in the field SAPOD (the date is in fact CYYMMDD where C=0 before 2000 and 1 after 2000 and I can show this as YYYYMMDD using SAPOD=Case when LEFT(SAPOD,1)=1 then '20' else '19' end + SUBSTRING(cast(sapod as nvarchar(7)),2,7))
here is my query:
SELECT GFCUS, Ne.NEEAN, SCDLE, SAPOD, SATCD,CUS.GFCUN, BGCFN1,
BGCFN2, BGCFN3, SV.SVCSA, SV.SVNA1, SV.SVNA2, SV.SVNA3,
SV.SVNA4, SV.SVNA5, SV.SVPZIP, SV.NONUK
FROM SCPF ACC
INNER JOIN GFPF CUS ON GFCPNC = SCAN
LEFT OUTER JOIN SXPF SEQ ON SXCUS = GFCUS AND SXPRIM = ''
LEFT OUTER JOIN SVPFClean SV ON SVSEQ = SXSEQ
LEFT OUTER JOIN BGPF ON BGCUS = GFCUS AND BGCLC = GFCLC
LEFT OUTER JOIN NEPF NE ON SCAB=NE.NEAB and SCAN=ne.NEAN and SCAS=ne.NEAS
LEFT OUTER JOIN SAPF SA ON SCAB=SAAB and SCAN=SAAN and SCAS=SAAS
WHERE
(SATCD>500 and
scsac='IV' and
scbal = 0 and
scai30<>'Y' and
scai14<>'Y' and
not exists(select * from v5pf where v5and=scan and v5bal<>0))
GROUP BY GFCUS, Ne.NEEAN, SCDLE, SAPOD, SATCD,
CUS.GFCUN, BGCFN1, BGCFN2, BGCFN3, SV.SVCSA,
SV.SVNA1, SV.SVNA2, SV.SVNA3, SV.SVNA4, SV.SVNA5, SV.SVPZIP, SV.NONUK
ORDER BY MAX(SCAN) ASC, SAPOD DESC
I am getting results like the below where there are several transactions by a customer, and we only want to show the data of the most recent transaction:
So how can I show just the most recent transaction? Is this a case where I should use an OUTER APPLY or CROSS APPY?
EDIT:
Sorry I should clarify that I need the most recent date for each of the unique records in the field NEEAN which is the Account number
You can use ROW_NUMBER() as follows:
SELECT
ROW_NUMBER() OVER (PARTITION BY Ne.NEEAN ORDER BY SAPOD DESC) AS [Row],
GFCUS, Ne.NEEAN, SCDLE, SAPOD, SATCD,CUS.GFCUN, BGCFN1,
BGCFN2, BGCFN3, SV.SVCSA, SV.SVNA1, SV.SVNA2, SV.SVNA3,
SV.SVNA4, SV.SVNA5, SV.SVPZIP, SV.NONUK
FROM SCPF ACC
INNER JOIN GFPF CUS ON GFCPNC = SCAN
LEFT OUTER JOIN SXPF SEQ ON SXCUS = GFCUS AND SXPRIM = ''
LEFT OUTER JOIN SVPFClean SV ON SVSEQ = SXSEQ
LEFT OUTER JOIN BGPF ON BGCUS = GFCUS AND BGCLC = GFCLC
LEFT OUTER JOIN NEPF NE ON SCAB=NE.NEAB and SCAN=ne.NEAN and SCAS=ne.NEAS
LEFT OUTER JOIN SAPF SA ON SCAB=SAAB and SCAN=SAAN and SCAS=SAAS
WHERE
(SATCD>500 and
scsac='IV' and
scbal = 0 and
scai30<>'Y' and
scai14<>'Y' and
not exists(select * from v5pf where v5and=scan and v5bal<>0)) and
[Row] = 1
GROUP BY GFCUS, Ne.NEEAN, SCDLE, SAPOD, SATCD,
CUS.GFCUN, BGCFN1, BGCFN2, BGCFN3, SV.SVCSA,
SV.SVNA1, SV.SVNA2, SV.SVNA3, SV.SVNA4, SV.SVNA5, SV.SVPZIP, SV.NONUK
ORDER BY MAX(SCAN) ASC
You could encapsulate this within a subquery if you don't want to return the [Row] column.
you can user row_number to get top 1 row per customer
In the where clause need to return values with pos value as 1
sample query
row_number() over ( partition by GFCUS order by SAPOD desc) as pos
fail statement:Error: ORA-00979: not a GROUP BY expression
select org_division.name , org_department.name , org_surveylog.division_code as divisionCode,org_surveylog.department_code as departmentCode , max(org_surveylog.actiondate) from org_surveylog
left join org_division on (org_surveylog.division_code= org_division.division_code and org_surveylog.SURVEY_NUM= org_division.survey_num)
left join org_department on (org_surveylog.department_code = org_department.department_code and org_surveylog.SURVEY_NUM = org_department.survey_num)
group by org_surveylog.division_code,org_surveylog.department_code
but below is ok
select org_surveylog.division_code as divisionCode,org_surveylog.department_code as departmentCode , max(org_surveylog.actiondate) from org_surveylog
left join org_division on (org_surveylog.division_code= org_division.division_code and org_surveylog.SURVEY_NUM= org_division.survey_num)
left join org_department on (org_surveylog.department_code = org_department.department_code and org_surveylog.SURVEY_NUM = org_department.survey_num)
group by org_surveylog.division_code,org_surveylog.department_code
how to use group by with left join when i need to show value of org_division.name , org_department.name ?
You need to change your GROUP BY to
group by org_division.name ,
org_department.name
org_surveylog.division_code,
org_surveylog.department_code
From Oracle Select Statements : Select Statement With GROUP BY Clause
SELECT <column_name>, <aggregating_operation>
FROM <table_name>
GROUP BY <column_name>;
You will notice that you need to include the non aggregated columns in the GROUP BY statement.