When Does Ssrs Use A DISTINCT Clause In It's Queries?

Jun 27, 2007

I am having a heck of a time figuring out what controls how/when the generated SQL for a report puts a DISTINCT clause in front of it.

For instance, not that this report makes any sense, but I have 58 rows in my fact table/entity €“ If I pull in a lookup field and execute, the distinct is put in the query and I basically get a list of the possible domain values. It runs the whole joined table query to get them, but it does list (in this case) just 4 records. Now I put in the primary ID of the fact entity and the distinct goes away and I get my 58 rows. If I put two lookup fields, the DISTINCT is back. If I pull in the description field (text string just a direct source field mapping not part of the identifying attributes), the distinct is there. If I pull in the Company Name field on a different entity (which is essentially the same as pulling in Description only it is part of the identifying attributes), there is no DISTINCT. I can pull in all my fields on this entity and none of them drive the distinct. And I swear (ok, I am probably lying but not on purpose) the field/attribute and roles properties are all the same on the attributes. But you get my general question/situation...

Any insight for me? Does it have to do with how I am building the report rather than the underlying model?

Thanks in advance,

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Nov 4, 2015

I have a quite big SQL query which would be nice to be used using UNION betweern two Select and Where clauses. I noticed that if both Select clauses have Where part between UNION other is ignored. How can I prevent this?

I found a article in StackOverflow saying that if UNION has e.g. two Selects with Where conditions other one will not work. [URL] ....

I have installed SQL Server 2014 and I tried to use tricks mentioned in StackOverflow's article but couldn't succeeded.

Any example how to write two Selects with own Where clauses and those Selects are joined with UNION?

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Jul 20, 2005

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Dec 10, 2007

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DISTINCT
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Feb 21, 2008

Hello,

I was wondering if anyone can explain the positives and negatives of using a single stored procedure that contains one or more distinct queries. I know there are problems with dynamic SQL but I am not proficient enough to know whether this falls under that umbrella.

For clarification, what I am referring to is this: In a single stored procedure, I have a parameter called Query_ID that is used to identify which query in the sproc that I want to execute. Then from my ASP page, I simply pass the appropriate value for Query_ID. So:

IF @QUERY_ID = 1
BEGIN
SELECT [whatever]
FROM [tbl1]
WHERE [conditions]
GROUP BY [something]
ORDER BY [somethingelse]
END
ELSE
IF @QUERY_ID = 2
BEGIN
SELECT [whatever]
FROM [tbl2]
WHERE [conditions]
GROUP BY [something]
ORDER BY [somethingelse]
END
END

I hope that makes sense. Thanks in advance.

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Hi,
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I'm using SQLServer and OleDB.
 
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Hi,
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Gemma

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Feb 17, 2008

Hi Guys,

I am having trouble with a particular query that is beyond my scope of understanding.

Basically I need to pull sales records based on the following criteria:

I have CustomerID, InvoiceNumber, ContractEndDate, MobileNumber, etc..

Customers recontract their mobile phone plans through us, and we have a new sales record for each time they recontract.

For example, CustomerNumber 123 has recontracted 3 times..

once on 2006-01-01, then on 2007-02-12, and finally on 2008-02-15..

So they have a 12 month contract each time.. then come in to recontract it.

So.. a customer has a single Customer Detail record, but may have many sales records attached. And a customer may have several sales for the SAME mobile phone number.

Currently to pull ALL sales records for all customers, my query is this:


Code:


SELECT xxx.CustomerID AS xxx_CustomerID,
xxx.Invoice AS xxx_Invoice,
yyy.PhoneType AS yyy_PhoneType,
yyy.PlanType AS yyy_PlanType,
yyy.ContractEnds AS yyy_ContractEnds,
yyy.MOB AS yyy_MobileNumber

FROM dbo.SaleControl xxx INNER JOIN dbo.SaleDetails yyy ON xxx.Invoice = yyy.Invoice

WHERE yyy.ContractEnds IS NOT NULL
AND xxx.CustomerID IS NOT NULL



We want to get a list of customers that we can call to recontract, based on the ContractEnd field.

However, we want UNIQUE mobile phone numbers, with the LATEST ContrtactEnd date.

So, Customer 123 has 6 sales, for 2 unique Mobile numbers, the sql may be like:


Code:


SELECT MAX(yyy.ContractEnds) AS LatestCED, yyy.MOB
FROM dbo.SaleControl xxx INNER JOIN dbo.SaleDetails yyy ON xxx.Invoice = yyy.Invoice
WHERE xxx.CustomerID='123'
GROUP BY yyy.MOB



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BUT i need this information ALONG WITH the other fields (xxx.CustomerID, xxx.Invoice, yyy.PhoneType, yyy.PlanType) and i have tried a few ways of doing it, but can't get my head around it..

Keep getting errors about Aggregate functions and Group By clause, and i understand why i am getting them, just cant think of any alternative query.

Can anyone please help me!

Thanks guys,

Mick

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Hi,
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Report Model is deployed to the report server and datasource is set dynamically at runtime(programmatically). When user runs the report (which is created using report model above), I need to change the where clause of one of the entities in ReportModel. How can i acccomplish this programmatically?

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<Query>   <SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetListItems</SoapAction>  
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap/" Name="GetListItems">     
<Parameters> <Parameter Name="listName">       

[Code] .....

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May 9, 2007



Hi



Is there a way that I can sum the value of a field in a text box and use where clause with it..



For Example

I want



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What is the syntax as I know in a text box, you can not use where the way I wrote it above...Thanks

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Mar 31, 2008



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SELECT id,
DATEDIFF(DAY, Created, BMTRequestReviewDate) AS 'EvaluateDays',

all code goes here

FROM [dbo].[SBWT_Data]
WHERE
upper(Status) not like '%XX%'
AND upper(Status) not like '%DELETED%'
upper(Status) not like '%CLOSED%'
---OR
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Sep 10, 2015

Table : incident
----------------
incident_id usr_id item_id Inc_Date
10059926 191 61006 8-22-2015
10054444 222 3232 6-7-2015

Table: act_reg
--------------
act_reg_id act_type_id incident_id usr_id act_type_sc
454244 1 10059926 191 ASSIGN
471938 115 10059926 191 TRAVEL TIME
473379 40 10059926 191 FOLLOW UP
477652 115 10059926 191 TRAVEL TIME
489091 504 10059926 191 ADD_ATTCHMNTS
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Result (While I am selecting 'Yes' in dropdown)
----------------------------------------------
incident_id usr_id item_id
10059926 191 61006
10054444 222 3232

SELECT incident.incident_id,incident.usr_id,incident.item_id
FROM incident
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INSERT INTO #LatLong SELECT DISTINCT Latitude, Longitude FROM RGCcache



When I run it I get the following error: "Violation of PRIMARY KEY constraint 'PK__#LatLong__________7CE3D9D4'. Cannot insert duplicate key in object 'dbo.#LatLong'."



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Hello,
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UPDATE dbo.Track_ID

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WHERE Processed = 0 AND LegNum = 1

AND TrackID IN

(


SELECT TrackID

FROM dbo.Track_ID

GROUP BY TrackID

HAVING MAX(LegNum) = 1 AND


TrackID + 'x1' IN


(


SELECT

dbo.Track_ID.TrackID + 'x' + CONVERT(NVARCHAR(2), COUNT(dbo.Track_ID.TrackID))

FROM dbo.Track_ID INNER JOIN dbo.transactions


ON dbo.Track_ID.SM_ID = dbo.transactions.sm_session_id

GROUP BY dbo.Track_ID.TrackID

)

)
Once moved to SQL Server 2005 the statement would not return and showed SOS_SCHEDULER_YIELD to be the waittype when executed. This machine is SP1 and needs to be upgraded to SP2, something that is not going to happen near time.

I changed the SQL to the following, SQL Server now runs it in under a second, but now the app is not functioning correctly. Are the above and the following semantically the same?


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SET dbo.Track_ID.Processed = 4 --Regular 1 leg call thats been completed

WHERE Processed = 0 AND LegNum = 1

AND TrackID IN
(



SELECT TrackID

FROM dbo.Track_ID

WHERE TrackID + 'x1' IN


(


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FROM dbo.Track_ID INNER JOIN dbo.transactions


ON dbo.Track_ID.SM_ID = dbo.transactions.sm_session_id

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)
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)

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Code Snippet
select
cast(v.id as nvarchar(2)) id
from
(
select 1 id
union select 2 id
union select 11 id
) v
order by
v.id






Result set is ordered as: 1, 11, 2
I expect: 1,2,11


if renamed or removed alias for "cast(v.id as nvarchar(2))" expression then all works fine.

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Server: Msg 169, Level 15, State 3, Line 16
A column has been specified more than once in the order by list. Columns in the order by list must be unique.




Code Snippet
select
cast(v.id as nvarchar(2)) id
from
(
select 1 id
union select 2 id
union select 11 id
) v
cross join (
select 1 id
union select 2 id
union select 11 id
) u
order by
v.id
,u.id




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It reproducible on

Microsoft SQL Server 2000 - 8.00.2039 (Intel X86) May 3 2005 23:18:38 Copyright (c) 1988-2003 Microsoft Corporation Developer Edition on Windows NT 5.1 (Build 2600: Service Pack 2)


and


Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86) Feb 9 2007 22:47:07 Copyright (c) 1988-2005 Microsoft Corporation Developer Edition on Windows NT 5.1 (Build 2600: Service Pack 2)

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Hi,

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eg :

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I want the equivalent query in MSSQLServer for the above Oracle query.

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I hope someone will help me soon.
Its urngent


thanks in advance

regards
Waqas

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