I need to select the sum of transaction columns, count # of transactions, all by distinct customer ids. I have tried a few nested queries as well as something like the following:
select distinct(customer_id), sum(tran_amt), count(tran)
from tran_table
inner join tender_table;
The tender_table has the customer id so I have to join it.
You are using group functions, but you don't have a "group by" clause, I think this will give you the correct answer:
SELECT customer_id, SUM(tran_amt), COUNT(tran)
FROM tran_table INNER JOIN tender_table
GROUP BY CUSTOMER_ID;
I am guessing you want something like this:
select te.customer_id, sum(t.tran_amt), count(*)
from tran_table t inner join
tender_table te
on t.?? = te.??
group by te.customer_id;
You need join conditions and a group by clause. The ?? is for the columns used for the join, which your question does not specify.
Try this :
select tb_tran.customer_id, sum(tran_amt), count(tran)
from tran_table tb_tran inner join tender_table tb_tender
on tb_tran.customer_id = tb_tender.customer_id
group by tb_tran.customer_id;
Related
I have a table here in which I want to write a SELECT query in SQL Server that allows me to get the following:
For each unique combination of SalesPerson x Country, get only the rows with the latest Upload_DateTime
However, I am trying to do a group-by and inner join, but to no avail. My code is something like this:
SELECT t1.[SalesPerson], t1.[Country], MAX(t1.[Upload_DateTime]) as [Upload_DateTime]
FROM [dbo].[CommentTable] AS t1
GROUP BY t1.[SalesPerson], t1.[Country]
INNER JOIN SELECT * FROM [dbo].[CommentTable] as t2 ON t1.[SalesPerson] = t2.[SalesPerson], t1.[Country] = t2.[Country]
It seems like the GROUP BY needs to be done outside of the INNER JOIN? How does that work? I get an error when I run the query and it seems my SQL is not right.
Basically, this subquery will fetch the person, the country and the latest date:
SELECT
SalesPerson, Country, MAX(uplodaed_datetime)
FROM CommentTable
GROUP BY SalesPerson, Country;
This can be used on a lot of ways (for example with JOIN or with an IN clause).
The main query will add the remaing columns to the result.
Since you tried a JOIN, here the JOIN option:
SELECT
c.id, c.SalesPerson, c.Country,
c.Comment, c.uplodaed_datetime
FROM
CommentTable AS c
INNER JOIN
(SELECT
SalesPerson, Country,
MAX(uplodaed_datetime) AS uplodaed_datetime
FROM CommentTable
GROUP BY SalesPerson, Country) AS sub
ON c.SalesPerson = sub.SalesPerson
AND c.Country = sub.Country
AND c.uplodaed_datetime = sub.uplodaed_datetime
ORDER BY c.id;
Try out: db<>fiddle
I am struggling with taking a Count() from one table and dividing it by a correlating number from a different table in Microsoft SQL Server.
Here is a fictional example of what I'm trying to do
Lets say I have a table of orders. One column in there is states.
I have a second table that has a column for states, and second column for each states population.
I'd like to find the order per population for each sate, but I have struggled to get my query right.
Here is what I have so far:
SELECT Orders.State, Count(*)/
(SELECT StatePopulations.Population FROM Orders INNER JOIN StatePopulations
on Orders.State = StatePopulations.State
WHERE Orders.state = StatePopulations.State )
FROM Orders INNER JOIN StatePopulations
ON Orders.state = StatePopulations.State
GROUP BY Orders.state
So far I'm contending with an error that says my sub query is returning multiple results for each state, but I'm newer to SQL and don't know how to overcome it.
If you really want a correlated sub-query, then this should do it...
(You don't need to join both table in either the inner or outer query, the correlation in the inner query's where clause does the 'join'.)
SELECT
Orders.state,
COUNT(*) / (SELECT population FROM StatePopulation WHERE state = Orders.state)
FROM
Orders
GROUP BY
Orders.state
Personally, I'd just join them and use MAX()...
SELECT
Orders.state,
COUNT(*) / MAX(StatePopulation.population)
FROM
Orders
INNER JOIN
StatePopulation
StatePopulation.state = Orders.state
GROUP BY
Orders.state
Or aggregate your orders before you join...
SELECT
Orders.state,
Orders.order_count / StatePopulation.population
FROM
(
SELECT
Orders.state,
COUNT(*) AS order_count
FROM
Orders
GROUP BY
Orders.state
)
Orders
INNER JOIN
StatePopulation
StatePopulation.state = Orders.state
(Please forgive typos and smelling pistakes, I'm doing this on a phone.)
In sql server I'm trying to group by each sales people some infos as follow:
I have 2 tables: Positions and Clients
In Positions table, I have the following columns: Client_Id, Balance, Acquisition_Cost and in the Clients table I use the following columns: Client_Id and Sales_person.
I want to group by Sales_person (Clients table) the Client_id, Balance, Acquisition_Cost (Positions table)
I tried this:
SELECT Positions.Client_ID, Positions.Balance, Positions.Acquisition_cost
FROM Positions
INNER JOIN Clients ON Positions.Client_ID = Clients.Client_ID
GROUP BY Sales_person
It gives me "Positions.Client_ID is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause".
I precise I'm pretty new on SQL so that does not ring that much a bell to me.
You need to add Positions.Client_ID in the GROUP BY Clause, since the select expects this column if you really do not want Positions.Client_ID in the select, then no need to add in the GROUP BY Clause
For any column in your SELECT that you aren't including in the GROUP BY, you need to use some kind of aggregate function (MAX, SUM, etc.) on the column. So you could write it like this:
SELECT Positions.Client_ID
, Clients.Sales_person
, SUM(Positions.Balance) Balance_Sum,
, SUM(Positions.Acquisition_cost) Acquisition_Cost_Sum
FROM Positions
INNER JOIN Clients ON Positions.Client_ID = Clients.Client_ID
GROUP BY Positions.Client_ID
, Clients.Sales_person
If you only want the totals by Sales_person and not client_ID, you could just remove client_id from the SELECT AND GROUP BY:
SELECT Clients.Sales_person
, SUM(Positions.Balance) Balance_Sum,
, SUM(Positions.Acquisition_cost) Acquisition_Cost_Sum
FROM Positions
INNER JOIN Clients ON Positions.Client_ID = Clients.Client_ID
GROUP BY Clients.Sales_person
SELECT a.Client_ID, b.Sales_person, SUM(a.Balance) as Balance_Sum,SUM(a.Acquisition_cost) as Acquisition_Cost_Sum FROM Positions as a INNER JOIN Clients as b ON a.Client_ID = b.Client_ID GROUP BY a.Client_ID, b.Sales_person
Thanks all of you guys, here's the code that works for me in this case:
SELECT Positions.Client_Id, Clients.Sales_person, SUM(Positions.Balance) as sum_balance_impacted, SUM(Positions.Acquisition_cost) as sum_acquisition_cost
FROM Positions
INNER JOIN Clients ON Positions.Client_Id= Clients.Client_Id
GROUP BY Clients.Sales_person, Positions.Client_Id```
I m trying to use group by clause in left join sql query and it is not working.
Please help me out, thanks in advance.
SELECT Cust_Mst_Det.Cust_Hd_Code,
Cust_Mst_Det.First_Name,
SL_HEAD20152016.vouch_date AS invoice_2,
SL_HEAD20142015.vouch_date AS invoice_1,
Cust_Mst_Hd.EMail
FROM Cust_Mst_Det
LEFT JOIN SL_HEAD20142015 ON Cust_Mst_Det.Cust_Hd_Code=SL_HEAD20142015.Member_Code
LEFT JOIN SL_HEAD20152016 ON Cust_Mst_Det.Cust_Hd_Code=SL_HEAD20152016.Member_Code
LEFT JOIN Cust_Mst_Hd ON Cust_Mst_Det.Cust_Hd_Code=Cust_Mst_Hd.Cust_Hd_Code
WHERE cust_mst_det.first_name!='NIL'
GROUP BY Cust_Mst_Det.Cust_Hd_Code
ORDER BY SL_HEAD20152016.vouch_date DESC,
SL_HEAD20142015.vouch_date
I'm not sure which DBMS you are using, but on an Oracle your query will not work at all.
First issue: The GROUP BY statement is used in conjunction with the aggregate functions to group the result-set by one or more columns. You do not have any aggregating function in your SELECT statement (count, max, etc.)
Second issue: you must specify all columns from SELECT statement in your GROUP BY statement (excluding columns that represents results of aggregation).
As I said I don't know which DB is used by you, but those two points should be applicable for the most of SQL standards.
It appears that it is impossible to use an ORDER BY on a GROUP BY summarisation. My fundamental logic is flawed. I will need to run the following subquery.
ex :
SELECT p.*, pp.price
FROM products p
LEFT JOIN ( SELECT price FROM product_price ORDER BY date_updated DESC ) pp
ON p.product_id = pp.product_id GROUP BY p.product_id;
This will take a performance hit but as it is the same subquery for each row it shouldn't be too bad.
SELECT
DEPTMST.DEPTID,
DEPTMST.DEPTNAME,
DEPTMST.CREATEDT,
COUNT(USRMST.UID)
FROM DEPTMASTER DEPTMST
INNER JOIN USERMASTER USRMST ON USRMST.DEPTID=DEPTMST.DEPTID
WHERE DEPTMST.CUSTID=1000 AND DEPTMST.STATUS='ACT
I have tried several combination but I keep getting error
Column 'DEPTMASTER.DeptID' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause
I also add group by but it's not working
WHen using count like that you need to group on the selected columns,
ie.
SELECT
DEPTMST.DEPTID,
DEPTMST.DEPTNAME,
DEPTMST.CREATEDT,
COUNT(USRMST.UID)
FROM DEPTMASTER DEPTMST
INNER JOIN USERMASTER USRMST ON USRMST.DEPTID=DEPTMST.DEPTID
WHERE DEPTMST.CUSTID=1000 AND DEPTMST.STATUS='ACT'
GROUP BY DEPTMST.DEPTID,
DEPTMST.DEPTNAME,
DEPTMST.CREATEDT
you miss group by
SELECT DEPTMST.DEPTID,
DEPTMST.DEPTNAME,
DEPTMST.CREATEDT,
COUNT(USRMST.UID)
FROM DEPTMASTER DEPTMST
INNER JOIN USERMASTER USRMST ON USRMST.DEPTID=DEPTMST.DEPTID
WHERE DEPTMST.CUSTID=1000 AND DEPTMST.STATUS='ACT
group by DEPTMST.DEPTID,
DEPTMST.DEPTNAME,
DEPTMST.CREATEDT
All aggregate functions like averaging, counting,sum needs to be used along with a group by function. If you dont use a group by clause, you are performing the function on all the rows of the table.
Eg.
Select count(*) from table;
This returns the count of all the rows in the table.
Select count(*) from table group by name
This will first group the table data based on name and then return the count of each of these groups.
So in your case, if you want the countof USRMST.UID, group it by all the other columns in the select list.