I'm very new to SQL so please pardon my lack of knowledge. I'm also doing this for a class so please don't just give me the answer, I'd like to learn.
I have 3 tables of which are Contracts, PaymentTypes, InsuranceCompanies. I'm trying to join them and then display the number of contracts whose payment method is insurance, broken out by Insurance Company. I have done so, but it is not counting the amount of contracts per insurance company. It is instead counting how many InsuranceID's that are using Insurance and placing that into each Insurance Company count. Here is what I have for the SQL Query:
Select Distinct InsuranceCompanies.InsuranceCompany, Count (Contracts.InsuranceID) as 'Number of contracts'
from Contracts, PaymentTypes, InsuranceCompanies
where (Contracts.PaymentTypeID = 3) AND (PaymentTypes.PaymentTypeID = 3) AND (Contracts.PaymentTypeID = PaymentTypes.PaymentTypeID)
Group by InsuranceCompanies.InsuranceCompany
Here is what it outputs:
All Insurance 273
Best Insurance 273
Friendly Insurance 273
Insurance One 273
Safety Insurance 273
So my question is how can I have it count individual Insurance Companies then display it accordingly?
I took the answer given to me, applied all variables needed, and it functions perfectly! Here is the final working Query:
Select i.InsuranceCompany, Count(c.InsuranceID) as 'Number of contracts'
from Contracts c
join paymenttypes p on p.PaymentTypeID = c.PaymentTypeID
join insurancecompanies i on i.InsuranceID = c.InsuranceID
where c.PaymentTypeID = 3 AND p.PaymentTypeID = 3
Group by i.InsuranceCompany
Your query should look something like this, but as I'm missing parts of your structure I cannot fill in the part after on
Select i.InsuranceCompany, Count(c.InsuranceID) as 'Number of contracts'
from Contracts c
join paymenttypes p on p.PaymentTypeID = c.PaymentTypeID
join insurancecompanies i on i.InsuranceID = c.InsuranceID
where c.PaymentTypeID = 3 AND p.PaymentTypeID = 3
Group by i.InsuranceCompany
so read about table join
Related
I have one main table and join other tables via left outer or right outer outer join.One row of main table have over 30 row in join query as result. And I try pagination. But the problem is I can not know how many rows will it return for one main table row result.
Example :
Main table first row result is in my query 40 rows.
Main table second row result is 120 row.
Problem(Question) UPDATE:
For pagination I need give the pagesize the count of select result. But I can not know the right count for my select result. Example I give page no 1 and pagesize 50, because of this I cant get the right result.I need give the right pagesize for my main table top 10 result. Maybe for top 10 row will the result row count 200 but my page size is 50 this is the problem.
I am using Sql 2014. I need it for my ASP.NET project but is not important.
Sample UPDATE :
it is like searching an hotel for booking. Your main table is hotel table. And the another things are (mediatable)images, (mediatable)videos, (placetable)location and maybe (commenttable)comments they are more than one rows and have one to many relationship for the hotel. For one hotel the result will like 100, 50 or 10 rows for this all info. And I am trying to paginate this hotels result. I need get always 20 or 30 or 50 hotels for performance in my project.
Sample Query UPDATE :
SELECT
*
FROM
KisiselCoach KC
JOIN WorkPlace WP
ON KC.KisiselCoachId = WP.WorkPlaceOwnerId
JOIN Album A
ON KC.KisiselCoachId = A.AlbumId
JOIN Media M
ON A.AlbumId = M.AlbumId
LEFT JOIN Rating R
ON KC.KisiselCoachId = R.OylananId
JOIN FrUser Fr
ON KC.CoachId = Fr.UserId
JOIN UserJob UJ
ON KC.KisiselCoachId = UJ.UserJobOwnerId
JOIN Job J
ON UJ.JobId = J.JobId
JOIN UserExpertise UserEx
ON KC.KisiselCoachId = UserEx.UserExpertiseOwnerId
JOIN Expertise Ex
ON UserEx.ExpertiseId = Ex.ExpertiseId
Hotel Table :
HotelId HotelName
1 Barcelona
2 Berlin
Media Table :
MediaID MediaUrl HotelId
1 www.xxx.com 1
2 www.xxx.com 1
3 www.xxx.com 1
4 www.xxx.com 1
Location Table :
LocationId Adress HotelId
1 xyz, Berlin 1
2 xyz, Nice 1
3 xyz, Sevilla 1
4 xyz, Barcelona 1
Comment Table :
CommentId Comment HotelId
1 you are cool 1
2 you are great 1
3 you are bad 1
4 hmm you are okey 1
This is only sample! I have 9999999 hotels in my database. Imagine a hotel maybe it has 100 images maybe zero. I can not know this. And I need get 20 hotels in my result(pagination). But 20 hotels means 1000 rows maybe or 100 rows.
First, your query is poorly written for readability flow / relationship of tables. I have updated and indented to try and show how/where tables related in hierarchical relativity.
You also want to paginate, lets get back to that. Are you intending to show every record as a possible item, or did you intend to show a "parent" level set of data... Ex so you have only one instance per Media, Per User, or whatever, then once that entry is selected you would show details for that one entity? if so, I would do a query of DISTINCT at the top-level, or at least grab the few columns with a count(*) of child records it has to show at the next level.
Also, mixing inner, left and right joins can be confusing. Typically a right-join means you want the records from the right-table of the join. Could this be rewritten to have all required tables to the left, and non-required being left-join TO the secondary table?
Clarification of all these relationships would definitely help along with the context you are trying to get out of the pagination. I'll check for comments, but if lengthy, I would edit your original post question with additional details vs a long comment.
Here is my SOMEWHAT clarified query rewritten to what I THINK the relationships are within your database. Notice my indentations showing where table A -> B -> C -> D for readability. All of these are (INNER) JOINs indicating they all must have a match between all respective tables. If some things are NOT always there, they would be changed to LEFT JOINs
SELECT
*
FROM
KisiselCoach KC
JOIN WorkPlace WP
ON KC.KisiselCoachId = WP.WorkPlaceOwnerId
JOIN Album A
ON KC.KisiselCoachId = A.AlbumId
JOIN Media M
ON A.AlbumId = M.AlbumId
LEFT JOIN Rating R
ON KC.KisiselCoachId = R.OylananId
JOIN FrUser Fr
ON KC.CoachId = Fr.UserId
JOIN UserJob UJ
ON KC.KisiselCoachId = UJ.UserJobOwnerId
JOIN Job J
ON UJ.JobId = J.JobId
JOIN UserExpertise UserEx
ON KC.KisiselCoachId = UserEx.UserExpertiseOwnerId
JOIN Expertise Ex
ON UserEx.ExpertiseId = Ex.ExpertiseId
Readability of a query is a BIG help for yourself, and/or anyone assisting or following you. By not having the "on" clauses near the corresponding joins can be very confusing to follow.
Also, which is your PRIMARY table where the rest are lookup reference tables.
ADDITION PER COMMENT
Ok, so I updated a query which appears to have no context to the sample data and what you want in your post. That said, I would start with a list of hotels only and a count(*) of things per hotel so you can give SOME indication of how much stuff you have in detail. Something like
select
H.HotelID,
H.HotelName,
coalesce( MedSum.recs, 0 ) as MediaItems,
coalesce( LocSum.recs, 0 ) as NumberOfLocations,
coalesce( ComSum.recs, 0 ) as NumberOfLocations
from
Hotel H
LEFT JOIN
( select M.HotelID,
count(*) recs
from Media M
group by M.HotelID ) MedSum
on H.HotelID = MedSum.HotelID
LEFT JOIN
( select L.HotelID,
count(*) recs
from Location L
group by L.HotelID ) LocSum
on H.HotelID = LocSum.HotelID
LEFT JOIN
( select C.HotelID,
count(*) recs
from Comment C
group by C.HotelID ) ComSum
on H.HotelID = ComSum.HotelID
order by
H.HotelName
--- apply any limit per pagination
Now this will return every hotel at a top-level and the total count of things per the hotel per the individual counts which may or not exist hence each sub-check is a LEFT-JOIN. Expose a page of 20 different hotels. Now, as soon as one person picks a single hotel, you can then drill-into the locations, media and comments per that one hotel.
Now, although this COULD work, having to do these counts on an every-time query might get very time consuming. You might want to add counter columns to your main hotel table representing such counts as being performed here. Then, via some nightly process, you could re-update the counts ONCE to get them primed across all history, then update counts only for those hotels that have new activity since entered the date prior. Not like you are going to have 1,000,000 posts of new images, new locations, new comments in a day, but of 22,000, then those are the only hotel records you would re-update counts for. Each incremental cycle would be short based on only the newest entries added. For the web, having some pre-aggregate counts, sums, etc is a big time saver where practical.
I've got a query which gets the lists of customers who've made a purchase of the product for the current day
select Customer.customerName, sum(InvoiceDetail.itemPrice * InvoiceDetail.itemQuantity) as dailyPurchase from Invoice
inner join InvoiceDetail on Invoice.invoiceID = InvoiceDetail.invoiceID
inner join Customer on Invoice.customerID = Customer.customerID
inner join Item on InvoiceDetail.itemID = Item.itemID
inner join Branch on Branch.branchID = Invoice.branchID
inner join Region on Region.regionID = Branch.regionID
where
Invoice.inactive = 0 and InvoiceDetail.inactive = 0
and Item.itemTypeID = 3
and Region.regionCode = 'CR'
and cast(Invoice.invoiceDate as date) = convert(date, '01/08/2016', 103)
group by Customer.customerName
What I need is a table with a list of all the dates in the current month, listing ALL customers who have at least purchased the product ONCE. It should resemble something similar to this image here.
Any help on how to get started or a general idea of how to get the desired result, is much appreciated. Thanks!
Sample Data from Results:
customerName dailyPurchase
AGH COMMUNICATIONS 450.00
ARIEL AMARCORD SHOP 285.00
AKN COMMUNICATION 300.00
AWSDAC TELECOMMUNICATION 2850.00
BARLEY MOBILE & SERVICES 285.00
Table Structure - I'm sorry, I don't know an easier way to copy this.
First get the customers who have purchased the product atleast once this month alongwith date.
Then use pivot to get the result in the form that you want (as seen in image). Search stackoverflow for pivot in sql server, you will get good info.
Give some information about the table structure and sample data and I might be able to help you with the query to get the results.
Trying to return only the 1st supplier code and have all other fields unaffected.
`Select
Container.Part_Key,
Part.Part_No,
Part.Name,
Part.Revision,
Container.Quantity,
Container.Container_Status,
OP.Operation_No,
Opp.Operation_Code,
Part.Part_Status,
Supplier.Supplier_Code
From Part_v_Container as Container
Join Part_v_Part as Part
ON Part.Part_Key = Container.Part_Key
Join Part_v_Part_Operation as Op
On Op.Part_Operation_Key = Container.Part_Operation_Key
Join Part_v_Operation as OPP
On OPP.Operation_Key = OP.Operation_Key
Join part_v_approved_supplier as Approved
On Approved.part_key = container.part_key
Join common_v_Supplier as Supplier
On Supplier.supplier_no = Approved.Supplier_No
Where Container.Active = '1'
group by container.part_key`
There will be duplicate part numbers, revisions, etc. Not worried about that. I just want the part no to list only one approved supplier to the far right, even though for any given part, there are multiple approved suppliers listed in the database.
Furthermore, the order the database lists the approved suppliers does not matter.
Thanks!
Add a sub query in your select list
( select top 1 supplier.supplier_code
From supplier
Where Supplier.supplier_no = Approved.Supplier_No order by Supplier.supplier_no) as supplier code
This can be the last field in the select list
You could add An appropriate order by.
This would work in SQL Server
I have two tables: EQUIPMENT and WORKORDERS.
EQUIPMENT returns the count of Equipment against a particular depot by the type of Equipment:
MAINTDEPOT EQUIPCOUNT EQUIPTYPE
1 44 MC
2 20 MC
3 5 MC
1 20 FS
2 3 FS
3 10 FS
...and so on. These counts rarely change unless a new bit of kit is put in.
I need to join a count of WORKORDERS to this table, but the work orders have a COSTCENTRE of either A B or E. This is so that I can generate a percentage of equipment with workorders.
I've joined the tables, but when I add a parameter filter to the WORKORDERS COSTCENTRE column the Count of EQUIPMENT changes, and I need it to stay the same.
I'm guessing I need to use subqueries to ensure that the left subquery remains static whilst the filter only changes the right hand one. Does anyone have any idea how I do this?
Here's my current query:
SELECT E.E_MAINTDEPOT, E.E_EQUIPCOUNT, C.Category, E.MYORDER, E.W_WORKCOUNT,
E.E_NOWO, E.W_HRS, E.E_QA, E.E_EGI, E.E_CLASS,
ISNULL(ROUND(CAST(E.E_NOWO AS Float) /
CAST(E.E_EQUIPCOUNT AS Float) * 100, 2), 100) AS RESULT,
SUBSTRING(E.E_CLASS, 1, 1) AS EM_CLASS
FROM (
SELECT T.E_MAINTDEPOT, COUNT(T.EQUIP_NO) AS E_EQUIPCOUNT,
SUM(C.W_WORKCOUNT) AS W_WORKCOUNT,
COUNT(T.EQUIP_NO) - SUM(C.W_WORKCOUNT) AS E_NOWO, T.MYORDER,
T.E_QA, T.E_EGI, T.E_CLASS, SUM(C.W_HRS) AS W_HRS
FROM EQDType AS T
FULL OUTER JOIN EquipWOCount AS C
ON T.EQUIP_NO = C.EQUIP_NO
GROUP BY T.MYORDER, T.E_MAINTDEPOT, T.E_QA, T.E_EGI, T.E_CLASS, C.W_FUNCTION
) AS E
INNER JOIN EQDCategory AS C
ON E.MYORDER = C.Myorder
ORDER BY E.MYORDER, E.E_MAINTDEPOT
Thank you
I'm working on a field trip request software for school districts.
Each field trip has an account attached to it that will be billed. It will also have one or more driver/vehicle combinations and mileage and driver rates associated with each driver/vehicle combination.
I'm working on an accounting report that will show, by account, a count of the trips that are assigned to that account, the total number of miles driven on that account times a certain charge basis, and a total number of hours each driver has driven on that trip multiplied by their payrate.
I have a field trip (tripid=1) with two vehicles and two drivers and I expect two rows of output. However, I am getting 4 rows; Two rows for vehicle 81 and two rows for vehicle 56. Is there something in my joins that's causing too many rows to be outputted?
What's weird is Mister Driver is on both vehicles in the output of my query and so is Generic Person.
select distinct
tdv.tripid as tripid,
ta.name as account,
cb.chargebasisname as trip_type,
cb.defaultdistancerate as distance_rate,
(tc.odometerreturn-tc.odometerstart) as total_miles,
datediff(hour, tc.actualoriginstarttime,tc.actualoriginreturntime) as total_hours,
v.vehicle,
pr.hourlyrate as driver_rate,
e.firstname+' '+e.lastname as driver
from trip_tripdrivervehicle tdv
join trip_tripinformation ti
on ti.recordid = tdv.tripid
join trip_transportationaccounts ta
on ta.recordid = ti.accountid
join trip_invoicechargebasis cb
on cb.recordid = ta.defaultchargebasisid
join trip_tripcompletion tc
on tc.tripid = ti.recordid
join vehicles v
on v.recordid = tc.vehicleid
join trip_employeejobcategorypayrate pr
on pr.employeeid = tdv.driverid
join employees e
on e.recordid = tdv.driverid
where ti.triprequeststatusid = 7 and ti.recordid = 1
Here is my output:
https://lh6.googleusercontent.com/_Bbr20KcwLyw/TX5cwDhr7BI/AAAAAAAAbYE/qCfQtk6Xmeg/s800/sql_results.jpg
Looks like you also have two matches for the JOIN with table trip_tripcompletion - one that gives rows with total miles of 10 and another that gives rows with total miles of 50.
So each driver shows up with each total_miles option.
The JOIN condition for this table may need to be changed, or you can use GROUP BY along with MAX/MIN to show only the shortest/longest trip (depending on the need).