I have a table which basically contains a Person_ID, Action, TimeStamp and using Microsoft ReportBuilder I have a report which tables each Person and the COUNT for their Actions.
Person Action X ActionY
1 3 5
2 0 4
Now I need to filter the results to only show people in a certain group which is defined by another table containing Person_ID, Group_ID.
When I do a JOIN and filter results based on the Group_ID = x the counts are very high, although it does filter correctly.
I run the query manually in SQL Server Manager and it is returning the same row multiple times?
EDIT:
My current SQL is
select t1.personid, t1.action, t2.personid, t2.groupid
from t1
inner join t2 on t1.personid = t2.personid
where t2.groupid = 1
This returns each line multiple times, forgetting the count part as this is in the report builder I would like to understand why the same row is returned multiple times as this is what breaks the report.
Do a DISTINCT
SO..
SELECT PersonID, ActionX = COUNT(distinct varname), ActionY = SUM(distint varname)
FROM tblName1 a
INNER JOIN tblName2 b ON a.PersonID = b.PersonID
WHERE b.Group_ID = 'groupvar'
Related
I have a query which returns a set of 'records'.
The result is always from the same table, and should always be unique. It has a set of inner joins to filter the rows down to the appropriate subset.
The query is returning roughly 10 columns.
However, I found that it was returning duplicate rows, so I added select distinct to the query, which solved the duplication problem but has significant performance issues.
My understanding is that select distinct on (records.id), id... will return the same result in this case, as all duplicates would have the same primary key, and seems to be about twice as fast.
My other tests show that group by records.id is even faster again, and seems to do the same thing?
Am I correct that all three of these approaches will always return the same set of single table records?
Also, is there an easy way to compare the results of different approaches to ensure the set is being returned?
Here is my query:
SELECT DISTINCT records.*
FROM records
INNER JOIN records parents on parents.path #> records.path
INNER JOIN record_types ON record_types.id = records.record_type_id
INNER JOIN user_roles ON user_roles.record_id = parents.id AND user_roles.user_id = _user_id
INNER JOIN memberships ON memberships.role_id = user_roles.role_id
INNER JOIN roles ON roles.id = memberships.role_id
INNER JOIN groups ON memberships.group_id = groups.id AND
groups.id = record_types.view_group_id
Any individual record can have tree of 'parent' records. This is done using the ltree plugin. Effectively, we are looking to see if the user has a role which is in a group which is defined as the 'view group' for either the current record, or any of the parents. The query is actually a function, and _user_id is being passed in.
Since you are only selecting from records, you don't need DISTINCT; the records are already distinct (I presume).
So the duplicates you encounter could be caused by all the joins, for instance if more than one role or group membership matches one of your records, the same record will be combined with each of these references.
SELECT *
FROM records r
WHERE EXISTS (
SELECT *
FROM records pa on pa.path #> r.path
JOIN record_types typ ON typ.id = r.record_type_id
JOIN user_roles ur ON ur.record_id = pa.id AND ur.user_id = _user_id
JOIN memberships mem ON mem.role_id = ur.role_id
JOIN roles ON roles.id = mem.role_id
JOIN groups gr ON mem.group_id = gr.id AND gr.id = typ.view_group_id
)
;
I have select join query for generating report in SSRS. Query is working fine in SQL Server but as I add same query as dataset in SSRS and try to get rows count using CountRows() function it always return 0 (Zero). I'm not getting where my query is going wrong.
SQL Query
SELECT PR.NAME
FROm innovator.PROJECT PR
INNER JOIN innovator.PROJECT_RISK LPR ON LPR.SOURCE_ID = Pr.ID
INNER JOIN innovator.RISK_MANAGEMENT LR ON LR.id = LPR.RELATED_ID
Inner join innovator.PROGRAM_PROJECT P ON PR.ID = P.RELATED_ID
Inner Join innovator.PROGRAM PP ON P.SOURCE_ID = PP.ID
WHERE pp.ID = #Id
Fetching total count using CountRows() for Textbox
=CountRows(Fields!NAME.Value, "DataSetRisk")
DataSetRisk is Dataset name and Name is column name of Project Table
Use the CountRows function. For example
=CountRows("MyDataset")
Example : =CountRows("DataSetRisk")
will give you the number of rows in MyDataSet.
Try something a little simpler: Count(Fields!NAME.Value) as a column. This assumes, of course, that field name actually is populated. If the column is in separate groups, it will provide a count for each group, otherwise it will count for the entire report.
I'm having issues with what I believe should be a simple problem in SQL Server 2017. I need to show the total sales price for a given sale. This is what I have written (note I deleted the totalprice sum formulae because it returned an error) :
USE [Antiques]
GO
DECLARE #TotalPrice INT
SELECT
Sales.SaleNo,
Sales.SalesDate,
Customers.FirstName,
Customers.LastName,
Products.Price,
#TotalPrice AS TotalPrice
FROM
Customers JOIN Sales ON Customers.CustomerID = Sales.CustomerID
JOIN SalesProducts ON Sales.SaleNo = SalesProducts.SaleNo
JOIN Products ON SalesProducts.ProductID = Products.ProductID
WHERE (Products.ProductID = SalesProducts.ProductID)
GO
This is the result:
Even if I remove the item price (which I have just put in temporarily and won't be in final code) there are still multiple lines per sale (1 for each item in the sale). Have I used the wrong joins? How can I get it looking like this:
Can anyone please tell me what I'm doing wrong? I've tried so many ways of using the Sum function and Group By and failing. (Note: this has to be a basic query and not a stored procedure unfortunately)
Actually you're not too far away. I'd move the grouping in a derived table and join that, to get the totalprice.
SELECT sales.saleno,
sales.salesdate,
customers.firstname,
customers.lastname,
x.totalprice
FROM sales
INNER JOIN customers
ON customers.customerid = sales.customerid
INNER JOIN (SELECT salesproducts.saleno,
sum(products.price) totalprice
FROM salesproducts
INNER JOIN products
ON products.productid = salesproducts.productid
GROUP BY salesproducts.saleno) x
ON x.saleno = sales.salesno;
I have a shortcut query where I just counted the total number of products and used count to display that the person has requested that many products. (Which is 8 products)
I want to know if there's an easier way where I wouldn't need to count the the products myself and have the query do it. Basically, replace the 8 with the total amount of products that the database has.
SELECT DISTINCT
Tb_Consumer.Name
FROM
Tb_Consumer, Tb_Product, Tb_Requests
WHERE
Tb_Consumer.Con_ID = Tb_Requests.Con_ID
AND Tb_Requests.Prod_ID = Tb_Product.Prod_ID
GROUP BY
Tb_Consumer.Name
HAVING
COUNT(Tb_Product.Name) = 8
Use a subquery to find the number of products in the Tb_Product table:
SELECT
tbc.Name
FROM Tb_Consumer tbc
INNER JOIN Tb_Request tbr
ON tbc.Con_ID = tbr.Con_ID
INNER JOIN Tb_Product tbp
ON tbr.Prod_ID = tbp.Prod_ID
GROUP BY
tbc.Name
HAVING
COUNT(tbp.Name) = (SELECT COUNT(*) FROM Tb_Product); -- count products here
This assumes that every record in Tb_Product corresponds to a single unique product. If there could be duplication for some reason, then you can count distinct products, e.g.
(SELECT COUNT(DISTINCT Name) FROM Tb_Product)
Other changes I made include removing DISTINCT from the select clause, since the GROUP BY should already make each name distinct. I also refactored your query to remove the commas in the FROM clause. Instead, I use explicit joins between the three tables.
I have a database in SQL Server that has three tables: Issues, Attachments, and Requestors. I need a single query that returns all the columns contained in the "Issues" and "Attachments" tables. Listed below is the query that I've created, but it's not working as expected:
SELECT A.*,
B.*,
SubQuery.attachmentcount
FROM [DB].[dbo].[issues] AS A
FULL OUTER JOIN [DB].[dbo].[requestors] AS B
ON A.issue_id = B.issue_id,
(SELECT Count(attachments.attachment_id) AS AttachmentCount
FROM issues
LEFT OUTER JOIN attachments
ON issues.issue_id = attachments.issue_id
WHERE attachments.attachment_status = 1
GROUP BY issues.issue_id) AS SubQuery;
Pictures describing the three tables are listed below:
Any ideas on how to fix my query?
Thanks,
"I need a single query that returns all the columns contained in the "Issues" and "Attachments" tables".
Based on this sentence try this:
SELECT A.Issue_ID, I.Issue_Name,r.Name, COUNT(A.attachment_id) AS Count
FROM Attachments as A
INNER JOIN Issues I on I.issue_id = A.issue_id
INNER JOIN requestors as R on A.issue_id = R.requestor_id
WHERE A.attachment_status = 1
GROUP BY A.Issue_ID, I.Issue_Name, r.Name
--Specify all columns by name (don't use *)
Keep It Simple and Try This!
SELECT i.Issue_ID, i.Issue_Name, COUNT(a.attachment_id) AS AttachmentCount
FROM attachments a JOIN
issues i ON
i.issue_id = a.issue_id
WHERE a.attachment_status = 1
GROUP BY i.Issue_ID, i.Issue_Name
Add your Desired Columns in Both Select List and Group By Clause and you are done.