I have 2 tables
Company & products
I need to get 2 counts. One is the total count of products and the secondly count of products for sale_flg=1
This SQL does not seem to work..Tried several other ways..not able to get the expected results
SELECT A.COMPANY_NAME, COUNT(B.PRODUCT_ID) AS TOTAL_COUNT_OF_PRODUCTS,
(CASE WHEN B.SALEFLG =1 THEN 1 END) AS COUNT_OF_SALES
FROM COMPANY A LEFT JOIN
PRODUCT B
ON B.COMPANY_ID = A.COMPANY_ID
GROUP BY A.COMPANY_NAME
I think you just need a sum for the case:
SELECT C.COMPANY_NAME, COUNT(P.PRODUCT_ID) AS TOTAL_COUNT_OF_PRODUCTS,
SUM(CASE WHEN P.SALEFLG = 1 THEN 1 ELSE 0 END) AS COUNT_OF_SALES
FROM COMPANY C LEFT JOIN
PRODUCT P
ON P.COMPANY_ID = C.COMPANY_ID
GROUP BY C.COMPANY_NAME ;
If you have B.SALEFLG = 1 or 0 for you may try
Sum(B.SALEFLG) AS COUNT_OF_SALES
Or use UNION
If you use count then in else you should consider null because null is not consider in count aggregation and if you have B.SALEFLG =1 or 0 then use sum aggregation.
You can try below code:
SELECT A.COMPANY_NAME, COUNT(B.PRODUCT_ID) AS TOTAL_COUNT_OF_PRODUCTS,
count(CASE WHEN B.SALEFLG =1 THEN 1 else null END) AS COUNT_OF_SALES
FROM COMPANY A LEFT JOIN
PRODUCT B
ON B.COMPANY_ID = A.COMPANY_ID
GROUP BY A.COMPANY_NAME
OR try this:
SELECT A.COMPANY_NAME, COUNT(B.PRODUCT_ID) AS TOTAL_COUNT_OF_PRODUCTS,
sum(B.SALEFLG) AS COUNT_OF_SALES
FROM COMPANY A LEFT JOIN
PRODUCT B
ON B.COMPANY_ID = A.COMPANY_ID
GROUP BY A.COMPANY_NAME
This SQL server query is working.
Company Table and Product Table
Company Table CompanyID is join with Product table and sales_flg add in product table .
sales_flg = 1 record display in CntSalesflg
select Comp.CompID as CompID, COUNT(Pro.ProductID) as CntProdustID,
SUM(CASE WHEN Pro.SalesflagID = 1 THEN 1 ELSE 0 END) as CntSalesflg
from Product as Pro
inner join Company as Comp on Pro.CompID = Comp.CompID
GROUP by Comp.CompID
Related
See pics below of what i want to do with my sql statement. I have used a left join and ISNULL to get all the results fine except for I don't get the total, which I want to sum the numbers for each customer. All table b values are integers.
Select a.CustomerId, a.FName, a.LName, b.mtg1, b.mtg2, b.mtg3, b.mtg4 From Customer a Left Join Hours b On a.CustomerID = b.CustomerID group by a.Lname
The GROUP BY will make it a bit difficult to captured all the necessary data. Also, the sum of different columns will require the use of COALESCE(column, 0) so as to use zero as the value if the column is null because if not done, your total will come back asNULL`.
One possible solution will is:
SELECT a.CustId, a.FName, a.LName, SUM(b.mtg1), SUM(b.mtg2), SUM(b.mtg3), SUM(b.mtg4), (COALESCE(SUM(b.mtg1), 0) + COALESCE(SUM(b.mtg2), 0) + COALESCE(SUM(b.mtg3), 0) + COALESCE(SUM(b.mtg4), 0)) AS total
FROM table_a a
LEFT JOIN table_b b ON(b.CustID = a.CustId)
GROUP BY a.CustID, a.FName, a.LName
with cte as
(
select flname+', '+fname as Name,
mtg1,mtg2,mtg3,mtg4,
isnull(((case when mtg1 is null then 0 else mtg1 end)+
(case when mtg2 is null then 0 else mtg2 end)+
(case when mtg3 is null then 0 else mtg3 end)+
(case when mtg4 is null then 0 else mtg4 end)),0) as total
from a left join b
on a.custid = b.custid
)
select name,
isnull(mtg1,0) as mtg1,
isnull(mtg2,0) as mtg2,
isnull(mtg3,0) as mtg3,
isnull(mtg4,0) as mtg4,
total
from cte
order by 1
I need to have a SQL query to calculate the percentage of courses completed by location which are different SQL tables.
Courses table has a Status = 'C' (Completed status).
select Locations.Name, ( ??? ) as PercentCompleted
from Locations inner join Candidates ON Locations.Id = Candidates.SpecifiedLocation
inner join Courses on Candidates.Id = Courses.CandidateId
Group By Locations.Name
I want the results to be:
Location PercentCompleted
Loc1 10
Loc2 50
Loc3 75
where 10, 50 and 75 are percentages of courses completed per location.
Can this be achieved with a single SQL query?
If I understand correctly, I think you can do:
select l.Name,
avg(case when co.status = 'C' then 100.0 else 0 end) as PercentCompleted
from Locations l inner join
Candidates c
on l.Id = c.SpecifiedLocation inner join
Courses co
on c.Id = co.CandidateId
group by l.name;
try like below
select Locations.Name, (sum(case when Status = 'C' then 1 else 0 end)/(select count(*)
from Candidates c where c.SpecifiedLocation=Locations.Id))*100
as PercentCompleted
from Locations inner join Candidates ON Locations.Id = Candidates.SpecifiedLocation
inner join Courses on Candidates.Id = Courses.CandidateId
Group By Locations.Name
I have Projects - Issues, one to many relationship.
I want Pending issues and Completed issues for each project.
So, what I have done
SELECT
a.id ,
a.Name,
SUM(CASE WHEN b.StatusId = 3 THEN 1 ELSE NULL END) AS CompletedIssues,
SUM(CASE WHEN b.StatusId != 3 THEN 1 ELSE NULL END) AS PendingIssues
FROM
Projects a
JOIN Issues b
ON a.ID = b.ProjectId
GROUP BY
a.name,
b.StatusId,
a.ID
But it's not giving proper output. see below snap.
There are two separate rows for Completed and pending issues and sometimes more then 2 rows based upon Issues Status ID (See BT5).
Is case when is wrong for this scenario?
what is the proper way to achieve this?
Fix your group by:
select p.id, p.Name,
sum(case when i.StatusId = 3 then 1 else null end) as CompletedIssues,
sum(case when i.StatusId <> 3 then 1 else null end) as PendingIssues
from Projects p join
Issues i
on p.ID = i.ProjectId
group by p.name, p.id;
Note: You may not want else NULL. Normally, you want counts to be zero rather than NULL:
select p.id, p.Name,
sum(case when i.StatusId = 3 then 1 else 0 end) as CompletedIssues,
sum(case when i.StatusId <> 3 then 1 else 0 end) as PendingIssues
from Projects p join
Issues i
on p.ID = i.ProjectId
group by p.name, p.id;
Also, I changed the table aliases to something more meaningful. Don't use meaningless letters such as a and b. Use table abbreviations.
i'm currently running the following query (see below.)
However when i do the same values is returned for multiple rows in totalusers, activeusers and suspendedusers.
However when it comes to total login the values are unique.
Is their a reason why this could be happening and is their a way to solve the problem. If it helps im using the tool sql workben with postgre sql driver.
Cheers
SELECT
company.companyStatus,
company.CompanyId,
company.companyName,
select
count(distinct UserID)
From Users
inner join company
on Users.CompanyID = Company.CompanyId
where Users.Companyid = company.Companyid
as TotalUsers,
select sum(case when userstatusid =2 then 1 else 0 end)
from users
inner join company
on users.companyid = company.companyid
where users.companyid = company.companyid)
as ActiveUsers,
select sum(case when userstatusid = 3 then 1 else 0 end)
from users
inner join company
on users.companyid = company.companyid
where users.companyid = company.companyid)
as SuspendedUsers,
(Select COUNT (distinct usersessionid)
From UserSession
inner join users
on usersession.UserID=users.UserID
where usersession.UserID=users.UserID
and users.companyid= company.CompanyID)
as TotalLogin,
from Company
Its because your TotalUsers, ActiveUsers and SuspendedUsers queries are all using their own (unrestricted) copy of the Company table, whereas your TotalLogin is using the main instance from which you're selecting. This means that the TotalLogin numbers you're seeing are for that particular company, but the other fields are across ALL companies.
Presumably you wanted something more like:
SELECT
company.companyStatus,
company.CompanyId,
company.companyName,
count(distinct u.UserID) TotalUsers,
sum(case when u.userstatusid =2 then 1 else 0 end) ActiveUsers,
sum(case when u.userstatusid = 3 then 1 else 0 end) SuspendedUsers,
count(distinct u.usersessionid) TotalLogin
from Company
inner join Users on Users.CompanyID = Company.CompanyId
The reason is because you have company in the subqueries for those calculations.
I much prefer having table references in the from clause where possible, and you can write this query moving everything to the from clause:
SELECT c.companyStatus, c.CompanyId, c.companyName,
uc.Totalusers, uc.Activeusers, uc.Suspendedusers, ucs.TotalLogin
from Company c left outer join
(select u.companyid,
COUNT(distinct userid) as Totalusers,
SUM(case when userstatusid = 2 then 1 else 0 end) as ActiveUsers,
sum(case when userstatusid = 3 then 1 else 0 end) as Suspendedusers
from users u
group by u.companyid
) uc
uc.companyid = c.companyId left outer join
(select u.companyid, COUNT(distinct usersessionid) as TotalLogin
from UserSession us inner join
users u
on us.UserID = u.UserID
) ucs
on ucs.companyid = c.companyid;
This should also speed up the query because it doesn't have to do the same work multiple times.
I have query
SELECT [Category] = ISNULL ( c.Category,'0'),
COUNT (cl.ClientID) as [3 Mo Clients]
FROM Category c LEFT JOIN clients cl ON cl.CategCode = c.CategCode
WHERE agencyid =2
GROUP BY c.Category, c.CategCode
its work BUT it must show all category from Category table even if they are with null
but when i run my query it looks like this
category from Category table
Child
Infant
Newborn
Pregnant
Postpartum
Senior
Any Ideas way ISNULL doent work as it must be?
because you have filter the rows in the WHERE clause causing it to act like INNER JOIN. You need to put the condition in the ON clause because I'm guessing that column agencyid is found on table CategCode.
SELECT [Category] = ISNULL ( c.Category,'0'),
COUNT (cl.ClientID) as [3 Mo Clients]
FROM Category c
LEFT JOIN clients cl
ON cl.CategCode = c.CategCode AND
cl.agencyid = 2
GROUP BY c.Category, c.CategCode
UPDATE 1
SELECT [Category] = ISNULL ( c.Category,'0'),
COUNT (cl.ClientID) as [3 Mo Clients],
SUM(CASE WHEN statusid in (1,2) THEN 1 ELSE 0 END) [Status_1_2]
FROM Category c
LEFT JOIN clients cl
ON cl.CategCode = c.CategCode AND
cl.agencyid = 2
GROUP BY c.Category, c.CategCode