I need to create a SQL that will give me the total number of fans for a category.
select count(fo.id)
from fans_fanofvote as fov, fans_fanof as fo
where fov.fanof_id = fo.id
GROUP BY fo.fanofcategory_id
But the problem is that a fan can vote more then once for a category and because of that my query returns 2 fans for MMA but it should be 1 since the FAN (id:1) has voted twice for that category.
FanOf
ID FANOFCATEGORY NAME
== ============== =====
1 1 Ronda Rousey
2 1 GSP
3 2 Carey Price
4 2 Sidney Crosby
FanOfCategory
ID NAME
== ======
1 MMA
2 Hockey
3 Football
FanOfVote
ID FAN FANOF
== ==== =====
1 1 1
2 1 2
3 2 3
4 1 4
5 1 3
To get each category and the number of distinct fans that voted for it:
select foc.name, count(distinct fov.fan)
from fans_fanofvote as fov
join fans_fanof as fo
on fov.fan = fo.id
join fanofcategory foc
on fo.fanofcategory = foc.id
GROUP BY foc.name
To get the number of distinct fans for a specific category:
declare #CategoryID int = 1 //This should be a parameter, but just putting it here so you can test
select count(distinct fan)
from fanofvote
where fanof = #CategoryID
Related
I am trying to do a left join so that I get all of my rows from Table 1 even if there is no value corresponding to it in the second table.
My structures are:
Location Table:
ID LocName
1 Trk1
2 Trk2
3 Trk3
4 Unk
Quantity Table:
ID PartID Quantity LocationID
1 1 2 1
2 3 12 2
3 2 6 1
4 6 8 3
5 6 5 1
I am trying to join but also make a query on a specific PartID. My query is:
SELECT
INV_LOCATIONS.ID AS LocationID,
INV_LOCATIONS.NAME AS LocationName,
INV_QUANTITY.QUANTITY AS Quantity
FROM INV_LOCATIONS
LEFT JOIN INV_QUANTITY ON INV_LOCATIONS.ID = INV_QUANTITY.LOCATION_ID
WHERE INV_QUANTITY.PART_ID = 1;
My output right now would be:
ID LocName Quantity
1 Trk1 5
3 Trk3 8
The Desired output is:
ID LocName Quantity
1 Trk1 5
2 Trk2 NULL/0
3 Trk3 8
4 Unk NULL/0
I assume it is because I have the WHERE INV_QUANTITY.PART_ID = 1 and that is forcing it to be in the quantity table. I need to be able to verify it is on the right part but how do I also include it if it doesn't exist. I know I have done something very similar before but I cannot remember which project and so I cannot find the code anywhere.
You need to move the filtering logic to the ON clause:
SELECT il.ID AS LocationID, il.NAME AS LocationName,
iq.QUANTITY AS Quantity
FROM INV_LOCATIONS il LEFT JOIN
INV_QUANTITY iq
ON il.ID = iq.LOCATION_ID AND iq.PART_ID = 1;
Goal:
If a person has two candy number, number 1 should always display first. No need to display candy number 2.
If a person does not have number 1, it should display number 2 instead.
Display all data
(int)(int) (nvarchar) (int)
Id fId Name Candy Number
---------------------------------
1 12 Kimn 1
2 12 Kimn 2
3 19 Lisa 1
4 15 John 2
5 16 Maria 2
6 16 Maria 1
7 17 Mao 2
Requested result:
Id fId Name Candy Number
---------------------------------
1 12 Kimn 1
3 19 Lisa 1
4 15 John 2
6 16 Maria 1
7 17 Mao 2
Problem:
It doesn't work so well for me to display it.
Tried using case and end in where statement but the code didn't fit to the purpose.
Any idea?
select *
from
table
where
candynumber =
CASE WHEN b.MatchType = 1
THEN 1
ELSE 2
END
Thank you!
This can be using row_number() window function:
select Id, fId, Name, Candy_Number from (
select your_table.*, row_number() over(partition by fId order by Candy_Number) as rn from your_table
) t
where rn = 1
order by id
This gives one row per fId, with lower Candy_Number.
You can try this :
SELECT candyWrapper.ID,
candyWrapper.FID,
outerHardCandy.Name,
outerHardCandy.Number
FROM (SELECT innerSoftCandy.Name,
CASE
WHEN (SUM(innerSoftCandy.Number) = 3) OR (SUM(innerSoftCandy.Number) = 1) THEN 1
WHEN (SUM(innerSoftCandy.Number) = 2) THEN 2
END AS Number
FROM Candy innerSoftCandy
GROUP BY innerSoftCandy.Name
) outerHardCandy
INNER JOIN Candy candyWrapper ON (outerHardCandy.Name = candyWrapper.Name AND outerHardCandy.Number = candyWrapper.Number)
ORDER BY candyWrapper.ID
You can see this here -> http://rextester.com/BBD89608
I have 4 tables here, I need to multiply newly entered row value in a table with another row and find the total sum using CustomerId:
CustomerTable:
CustomerId Name EmailId
-------------------------
1 Paul r#r.com
2 John J#j.com
LoyaltyPointTable:
LoyaltyPointsId LoyaltyType Points
---------------------------------------
1 Registration 10
2 Loginstatus 1
3 Downloading 10
4 Redemming 1
5 Sharing 20
6 Refer 10
LoyaltyDetailsTable:
LoyaltyDetailsId LoyaltyPointsId CustomerId Dates
-------------------------------------------------
1 1 1 2015-01-22
2 2 1 2015-01-22
3 3 2 2015-01-22
4 3 1 2015-01-22
5 4 1 2015-01-22
6 4 1 2015-01-24
7 5 1 2015-01-24
This query works fine for the total sum for each LoyaltyType
SELECT
LoayaltyPointsTable.LoyaltyType,
COUNT(CustomerTable.CustomerId) AS UserActions,
SUM(LoayaltyPointsTable.Points) AS TotalPoints
FROM
LoayaltyPointsTable
JOIN
LoyaltyDetailsTable ON LoayaltyPointsTable.LoyaltyPointsId = LoyaltyDetailsTable.LoyaltyPointsId
JOIN
CustomerTable ON CustomerTable.CustomerId = LoyaltyDetailsTable.CustomerId
WHERE
CustomerTable.CustomerId = 1
GROUP BY
LoyaltyDetailsTable.CustomerId ,LoayaltyPointsTable.LoyaltyType
below RedeemPointsTable is created with relation to row redeeming in LoyaltyPointTable:
RedeemPointsTable:
RedeemPointsId CustomerId ShopName BillNo Amount
------------------------------------------------
1 1 Mall x 4757 100
3 1 Mall y SH43 50
4 1 Mall x 7743 10
6 1 Mall x s34a 60
What I am expecting is before calculating the total sum, I want column Amount sum (100+50+10+60) * 1 in Redeeming in LoyaltyPointTable to be added with total points for each CustomerId
Expected output
LoyaltyType UserActions TotalPoints
-------------------------------------
Downloading 1 10
Loginstatus 1 1
Redemming 4 (100+50+10+60)*1(here using Amount in RedeemPointsTable)
Refer 1 10
Registration 1 10
Sharing 1 20
User actions count is 4, it is based on the Amount he entered in RedeemPointsTable
Should I need to make changes in adding a foreign key column in RedeemPointsTable or can you point out my mistake?
Any help would be great.
This is the query which returns desired result:
SELECT
LoyaltyPointTable.LoyaltyType,
CASE
WHEN LoyaltyPointTable.LoyaltyPointsId=4 THEN (SELECT COUNT(amount) FROM RedeemPointsTable where CustomerId=1)
ELSE COUNT(CustomerTable.CustomerId)
END as UserActions,
CASE
WHEN LoyaltyPointTable.LoyaltyPointsId=4 THEN (SELECT SUM(amount) FROM RedeemPointsTable where CustomerId=1)*Points
ELSE SUM(LoyaltyPointTable.Points)
END as TotalPoints
FROM
LoyaltyPointTable
JOIN
LoyaltyDetailsTable ON LoyaltyPointTable.LoyaltyPointsId = LoyaltyDetailsTable.LoyaltyPointsId
JOIN
CustomerTable ON CustomerTable.CustomerId = LoyaltyDetailsTable.CustomerId
WHERE
CustomerTable.CustomerId = 1
GROUP BY
LoyaltyDetailsTable.CustomerId ,LoyaltyPointTable.LoyaltyType
You can check it here
I have table Customer:
Id Code Name
1 100 John
2 200 Jack
3 300 Mike
4 400 Betty
And table SaleType:
Id Code Name
1 1000 cash
2 2000 cheque
3 3000 free
And a table that describe which customer has which sale type named SaleType_Customer
Id SaleTypeID CustomerID
1 1 1
2 1 2
3 2 1
4 2 3
I want to write a query that takes the SaleTypes of a customer. But if the customer is not in table SaleType_Customer the query returns all of SaleTypes. How can I write this query?
My query:
SELECT SaleType.ID, SaleType.Code, SaleType.Name
FROM SaleType left outer join SaleType_Customer on SaleType.Id = SaleType_Customer.SaleTypeID
Where SaleType_Customer.CustomerID= 1
I want the result for John (id=1):
Id Code Name
1 1000 cash
2 2000 cheque
And for Betty (id=4) is complete because she is not in SaleType_Customer:
Id Code Name
1 1000 cash
2 2000 cheque
3 3000 free
How should I write my query?
SELECT distinct SaleType.ID, SaleType.Code, SaleType.Name
FROM Customer left join SaleType_Customer
on CustomerID = Customer.Id
,SaleType
where (SaleTypeID = SaleType.Id or SaleTypeID is NULL)
and Customer.ID= 4;
Here is the SQLFiddle
SELECT SaleType.ID, SaleType.Code, SaleType.Name
FROM SaleType
WHERE NOT EXISTS (SELECT *
FROM SaleType_Customer
WHERE SaleType_Customer.Customerid = 4)
UNION
SELECT SaleType.ID, SaleType.Code, SaleType.Name
FROM SaleType
INNER JOIN SaleType_Customer
ON SaleType_Customer.Saletypeid = SaleType.Id
WHERE SaleType_Customer.Customerid = 4
Sqlfiddle sample (oracle)
I have following tables:
UserMaster:
UserId Int, UserName Varchar(200),AddedBy Int
UserId EmpName AddedBy
1 admin 0
2 SubAdmin1 1
3 SubAdmin2 1
4 Vikas 2
5 Mohit 4
6 Atul 5
7 Vishal 6
8 Mani 3
9 Sunny 8
SalesMaster:
SalesId Int, UserId Int (FK_UserMaster_UserId) , Price Int
SalesId UserId Price
1 1 100
2 2 200
3 3 300
4 4 500
5 5 100
6 6 200
7 7 111
8 8 222
9 9 333
Case 1: Now I want the price total of all the users who are under the one particular user and its own price also.
Means If i consider UserId=1 , Then the price will be calculated for all users where Column value in AddedBy=1
and their lower level employees.
Means the total Price of users will be calulated for the users having UserId are: 1,2,3,4,5,6,7,8,9.
Case 2: Similarly, If i want to calculate the total price under UserId=3(SubAdmin2) then the total price from the salesMaster will be calculated for the Users having UserId are: 3,8,9
The Result of first Case should be:
UserId Price
1 2066
The Result of Second Case should be:
UserId Price
3 300+222+333
Please Help
Thanks & Regards
Nitin
with cte as (
select #UserId as UserId
union all
select um.UserId
from UserMaster as um
inner join cte as c on c.UserId = um.AddedBy
)
select sum(s.Price)
from cte as c
inner join SalesMaster as s on s.UserId = c.UserId
sql fiddle demo