SQL Server 2008 :: Select Queries With Join Sometimes Fail On Some Remote PCs
Jul 22, 2015
I have an intermittent issue where some remote PC's occasionally fail to execute select queries that have a join or return multiple result sets, however simple one table select queries continue to work okay. When it does happen the PC's needs to be rebooted to get to work again. This may only happen some PC's while others continue to work away okay.
I am using a VB6 application and ADO to connect to the database and the error message I get is a General Network Error, Server Not Found when it fails to execute the query. I have ran SQL Profiler on the server and while simple select queries continue to run away okay, a query a join does not even seem to show up in the profiler. The program has been working fine for 15 years with 1000's of users and has only now become an issue on one site for a number of users. Have tried moving the database to a different server and swapping network cards on the local PC's but can't seem to find the cause. The processor and the memory don't seem to be under load, but I am not sure if there is something else in SQL that is causing it to hang under certain conditions.
There have been network analysts experts in to run scans on the network, but I have not had the results of this back yet. Other applications do not seem to be affected so if this analysis does not show up anything.
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Mar 24, 2015
I have this sql....
Select
DISTINCT p.dbPatID, p.dbpatfirstname, p.dbPatLastName,
s.dbSchTypeCnt as SchDetailType, t.dbSchTypeCnt as SchTypeType,
ISNULL(r.dbStatusDesc, 'No Ref') AS dbStatusDesc,
ISNULL(t.dbSchTypeCode, 'No Ref') AS dbSchTypeCode,
ISNULL(t.dbSchTypeDesc, 'No Ref') AS dbSchTypeDesc,
[code]....
however, I only want the lastest a.dbPatApptTime and only when a.dbPFStatus = 1 and a.ClientRef = 'EPS'
So the stand alone sql could be....
Select Top(1) dbPatApptTime as LastVisitDate, dbSchTypeDesc as LastVisitDesc
from appointments
where dbPFStatus = 1 and clientref = 'EPS'
order by dbPatApptTime desc
I'm just not sure how to incorporate that into my sql or whether there is a better way,
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Nov 26, 2006
i installed sql server express, but i did not select to use mixed mode (the reason being for this that every time i did i got a install coruption error) i want to be able to connect the database remotly using the sqlservers jdbc driver. however i need a user name and password. therefore to do this i believe i need to be able to acess the database remotly.
ive tried everthing:
1. changing the surface area remote conenctions to allow remote connections using tcp and ip only
2. restarted the database
3. restarted the server
4. restarted the browser
5. checked the tcp/ip settings are enabled.
but when i do the follwing in command line i get this:
C:>osql -E
[SQL Native Client]VIA Provider: The specified module could not be found.
[SQL Native Client]Login timeout expired
[SQL Native Client]An error has occurred while establishing a connection to
the server. When connecting to SQL Server 2005, this failure may be caused by
the fact that under the default settings SQL Server does not allow remote
connections.
which indicates that its still not allowing remote conenctions, any ideas?
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Oct 22, 2015
I need to be able to restart an application service after the SQL Cluster fails over. how to accomplish this as a SQL job?
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Jul 20, 2005
We recently upgraded our SQL 7 servers to 2000, and we have a gooddeal of distributed queries in the form of Stored Procedures that runbetween them throughout the day. After the upgrade, I began gettingthe "CONNECTION BUSY PROCESSING RESULTS FROM ANOTHER COMMAND" error.This is intermittent but is wreaking havoc on our operations. The samequery ran fine on the 7 server setup. I have exhausted all optionsthat I know of. All of the postings I have seen on these boardsrelate to recordsets and ADO and having cursorlocations setincorrectly, our stored procedure simply selects a count(*) from atable on a remote server. Doesn't seem to make sense. Anyone seenthis before or know a remedy? Thanks in advance.Dave
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Apr 4, 2008
Can someone please shed some light on what seems to me to be a common requirement.
If I create an alias or linked server to Server1 - say Alias1 - on Server1 and then use that name in a query on Server1, a remote/distributed query is always used (even though we are running on the local server and that overhead is completely unnecessary).
Is SQL Server really not capable of deciding that
select * from Alias1.db1.dbo.table1
and
select * from Server1.db1.dbo.table1
should be optimized and executed exactly the same when Alias1 is Server1, but that it is a distributed query ONLY when Alias1 is really referring to a remote server? I realize that the four part name is not necessary when I am referring to objects on the current server, but I am trying to write code that is server instance independent.
It just seems that if that is not possible, then the only way to create system independent stored procs that can run in dev, staging, and production environments and work with multiple databases on multiple servers is to create all sorts of scripts to regenerate all the procs whenever you move a database between servers?
If SQL Server is even close to the enterprise big iron server that MS now claims it is, it surely needs to support running in dev, staging, and production environments and work with multiple databases on multiple servers?!
I'm really looking for someone to tell me I'm missing something simple, and of course you can do this - but complex workarounds are invited too :-)
This is not something I am investigating as an academic exercise, I am already doing this, but I have to figure out how to do it better because with all these unnecessary distributed queries, performance is horrible.
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Apr 22, 2015
How do I find out top expensive queries from SQL Server 2008 – Standard edition ?
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Jun 15, 2015
How can we get most frequent queries that are running against to a table in our database?
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Oct 7, 2015
One of my current responsibilities is to export data to 3rd party vendors. Each export can contain many csv files. The exports are all different in terms of what data is being sent.
The way I have it currently setup is each file that needs to be created is a view. An SSIS package gets the data from the view, writes to CSV, and then sftp to 3rd party vendor. This seemed like a good idea at first because the columns are static but the calculations might change. So all I have to do is ALTER VIEW and I don't have to change anything in the package.
Is there a better way of doing this? I was curious to see what other people are doing. What makes it challenging is that all the exports are so different. If they were similar I could have created generic views that cover all the exports instead of each export having its own view. Eventually I'm going to have 100's of views.
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Jun 4, 2015
Here's the scenario. I have a table (let's call it MyTable) that consists of four fields: Id, Source, FirstField, and SecondField, where Source only takes one of two values: Source1 and Source2.
The records in this table look as follows:
I need to return, using 3 different T-SQL queries:
1) Products that exist only in Source2 (in red above)
2) Products that exist only in Source1 (in green above)
3) Products that exist both in Source1 and Source2 (in black above)
For 1) so far I've been doing something along the lines of
SELECT * FROM MyTable WHERE Source=Source1 AND FirstField NOT IN (SELECT DISTINCT(FirstField) FROM MyTable WHERE Source=Source2)
Not being a T-SQL expert myself, I'm wondering if this is the right or more efficient way to go. I have read about INTERSECT and EXCEPT, but I am a little unclear if they could be applied in this case out of the box.
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Apr 23, 2015
I have a pretty large DB and a fairly complex query. If I drop buffers and clear cache the query runs in 20 seconds returning 25K rows. Subsequent runs are 2 seconds. Is this the result of the results being cached, execution being cached, other? Are there good ways to close the gap between the initial and later runs? Does the cache stay present until the service restarts or does SQL recycle the memory and if so, based on what criteria?
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Apr 23, 2008
I'm trying to use the following JOIN to access tables on a remote server.SELECT *FROM mywebsite.myweb_db.dbo.[VOD] LEFT JOIN mywebsite.myweb_db.dbo.[VOD_Category]ON mywebsite.myweb_db.dbo.[VOD].Category_VOD = mywebsite.myweb_db.dbo.[VOD_Category].IDX_VODCIf I do a select on one table to the remote server it works. (i.e. SELECT * FROM mywebsite.myweb_db.dbo.[VOD]
Once I do a JOIN I get the following error, does anyone know why? Thanks. :)The number name mywebsite.myweb_db.dbo.VOD' contains more than the maximum number of prefixes. The maximum is 3.
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Jan 4, 2013
if you can restore a database to Server B using Server A as the service. Meaning we would issue the command on Server A but somehow point to Server B as where we want the restore to happen.
The backup file would be in a location independent of both servers.
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Mar 30, 2015
Our monitoring tool shows that our production system periodically experiencing large rate - up to 800 memory pages/sec. How to find out which particular queries, S.P., processes that initiate this?
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Feb 16, 2015
Is it possible to view the Connection String information of a remote login/session? I want to know if the login is looking-up the database server via IP address, servername (NetBIOS name) or fully-qualified domain name (FQDN).
Using these DMVs I can get a lot of relevant information:
sys.dm_exec_sessions
Program Name (eg. Microsoft SQL Server Management Studio),
Client Interface Name (eg. .Net SqlClient Data Provider)
sys.dm_exec_connections
Net Transport (eg. TCP),
Client Net Address and TCP Port
but not how the server's IP address was resolved. Is the connection string ever sent by the client to the server, or just used for DNS lookup?
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May 1, 2015
I have a remote server where I dont have RDP access.
I opened Powershell and wrote the below query to read some of the message, but getting error:-
Clear-Host
$Machine = "XXXXX"
#Get-Eventlog -Logname System -ComputerName $Machine -newest 1000 | Where-Object {$_.EventID -lt '100'} |
Error Message:
[XXXXX] Connecting to remote server XXXXX failed with the following error message : WinRM cannot complete the operation. Verify that the specified computer name is valid, that the computer is accessible over the network, and that a firewall exception for the WinRM service is enabled and allows access from this computer. By default, the WinRM firewall exception for public profiles limits access to remote computers within the same local subnet.
+ CategoryInfo : OpenError: (XXXXX:String) [], PSRemotingTransportException
+ FullyQualifiedErrorId : WinRMOperationTimeout,PSSessionStateBroken
How to read the data (app/system eventviewerlog) using xp_cmdshell from SQL Server Mgmt studio itself?
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Jan 29, 2015
I am new in SQL and i need do a query where I need sum values from 2 tables, when i do it the Sum values are not correct. this is my query
SELECT D.Line AS Line, D.ProductionLine AS ProductionLine, D.Shift AS Shift, SUM(CAST(D.DownTime AS INT)) AS DownTime,
R.Category, SUM(Cast(R.Downtime AS INT)) AS AssignedDowntime,
CONVERT(VARCHAR(10), D.DatePacked,101) AS DatePacked
FROM Production.DownTimeReason R
left JOIN Production.DownTimeHistory D
[Code] .....
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Mar 23, 2015
I have Two tables @master and @child
Master Table :
MasterID EntryNumber BranchId IsstockIn
1 1 1 1
2 1 1 0
Child Table:
CEntryNumber CBranchID EntryQty
1 1 10
1 1 20
1 1 -5
1 1 -4
My Query:
Select SEC.EntryQty from Item.StockEntryChild SEC
where SEC.CEntryNo =
(
select SEM.EntryNumber from item.StockEntryMaster SEM
where SEC.CBranchID=SEM.BranchID and SEC.CEntryNo=SEM.EntryNumber and SEM.MasterID=1 and SEM.isStockIn=1
)
My Result:
EntryQty
10
20
-5
-4
Expected Result:
10
20
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Jul 13, 2015
I am looking for a query where in I can have a conditional statement within inner join after ON statement as shown below.
Declare @roleid int
select @roleid = roleid from Role where Name ='Admin'
select empid,empName,deptName from employee em
inner department dm on CASE when @roleid>0 then 1=dm.RoleId else em.RoleId=dm.RoleId end
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Oct 14, 2014
I have configured two node cluster environment on vmware with windows 2008 r2 os.I want to configure sql clustering over it.but prior to that I ran failover clustering manager on node V1 to create two node cluster(node v1,node v2 and third node as a domain controller with shared storage using iscsi target).After I successfully created cluster with name SqlClus1 I shut down all my vmware.Now when I start them all and see clustering status I get error RPC server not found and Cluster server can not be connected.On my cluster manager page I see cluster events marked as critical for both nodes.and cluster staus down.
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Jan 25, 2011
I have a XML data passed on to the stored proc in the following format, and within the stored proc I am accessing the data of xml using the nodes() method
Here is an example of what i am doing
DECLARE @Participants XML
SET @Participants = '<ArrayOfEmployees xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Employees EmpID="1" EmpName="abcd" />
<Employees EmpID="2" EmpName="efgh" />
</ArrayOfEmployees >'
SELECT Participants.Node.value('@EmpID', 'INT') AS EmployeeID,
Participants.Node.value('@EmpName', 'VARCHAR(50)') AS EmployeeName
FROM
@Participants.nodes('/ArrayOfEmployees /Employees ') Participants (Node)
the above query produces the following result
EmployeeID EmployeeName
--------------- -----------
1 abcd
2 efgh
How do I join the data coming out from the above query with another table in the database, for example Employee in this case
i.e. somewhat like this (note the following query does not perform the join correctly)
SELECT Participants.Node.value('@EmpID', 'INT') AS EmployeeID,
Participants.Node.value('@EmpName', 'VARCHAR(50)') AS EmployeeName
FROM
@Participants.nodes('/ArrayOfEmployees /Employees ') Participants (Node)
INNER JOIN
Employee EMP ON EmployeeID = EMP .EmployeeID
My desired output after the join would be
EmployeeID EmployeeName Email Home Address
--------------- ----------- --------------- -----------
1 abcd abcd@abcd.com New York
2 efgh efgh@efgh.com Austin
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Apr 25, 2015
I'm creating a sql stored procedure inside this proc it returns some information about the user, i.e location, logged in, last logged in, etc I need to join this on to the photos table and return the photo which has been set as the profile picture, if it hasn't been set then return the first top 1 if that makes sense?
The user has the option to upload photos so there might be no photos for a particular user, which I believe I can fix by using a left join
My photos table is constructed as follows:
CREATE TABLE [User].[User_Photos](
[Id] [bigint] IDENTITY(1,1) NOT NULL,
[UserId] [bigint] NOT NULL,
[PhotoId] [varchar](100) NOT NULL,
[IsProfilePic] [bit] NULL,
[Code] ....
Currently as it stands the proc runs but it doesn't return a particular user because they have uploaded a photo so I need to some how tweak the above to return null if a photo isn't present which is where I'm stuck.
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Jul 3, 2015
I have 3 tables as per following:
orddet
OrderProductQtyOrd
1 Item1 20
2 Item1 10
3 Item2 10
4 Item1 5
4 Item2 5
ordhead
OrderDate
110/06/2015
205/07/2015
307/06/2015
415/08/2015
product
ProductdescMinQty
Item1This is 110
Item2This is 220
I want to pull only the 1 line for minqty for an item as follows
OrderProductQtyOrddate minqty
1 Item1 20 10/06/2015 10
2 Item1 10 05/07/2015
3 Item2 10 07/06/2015 20
4 Item1 5 15/08/2015
4 Item2 5 15/08/2015
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Jul 15, 2015
I have two queries from two different tables ex ABC and BCD. For table ABC, according to my query, I got 11 records ; for table BCD I only got 9 records.
Bottom line: I would like to see only 11 records from Table ABC including certain data from table BCD after I joined this two tables.
However, no matter what I did I always got 99 records when I joined.
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Jul 20, 2015
I have data that I want at multiple granularities, 5,15,30 and 60 minutes. To reduce repetition, I have put them all in the same table, so that there is a column for 5,15,30 and 60 minutes, with a filtered index on each of the columns that removes the nulls. This means that each day will have 288 slots, but only 24 of the slots are filled in for 60 min data, and all of them are filled for 5 minute data.
I have another column that specifies the interval granularity, and my first thought was to access my data through a join, where I can use a CASE statement, and depending on the data granularity necessary, it will look at a different column:
INNER JOIN Data d ON
AND d.settlement_key =
CASE st.interval_granularity
WHEN 5 THEN [5_min_settlement_key]
WHEN 15 THEN [15_min_settlement_key]
WHEN 60 THEN [60_min_settlement_key]
ELSE NULL END
Despite the presence of the indexes on the columns, then the process seems to be quite slow, I think probably due to the fact that any query plan isn't going to know beforehand which of the columns it is going to use for any given dataset, until it actually starts to run, so it may not be optimised.
How I could optimise this based on the given structure? Maybe there are hints to be added to the join, or maybe I can clear the query plan each time the SQL is run? My other option for dealing with the data of different granularity was to use one column and repeat the data multiple times, each at the different granularity, but this makes my data, row and table sizes much higher, as we are adding just a column for each additional granularity. Would this work any better in future versions of SQL server, maybe with column store indexes?
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Jul 30, 2015
I have a query which wants to union join the data. no matter how many times I tried, I got an error. How to change my union query?
select distinct b.lev5 AS "LEVEL 1",b.lev5NAME, C.lev7 "FUND", C.lev7NAME,round (sum(a.data),2) AS AMOUNT
(Select distinct b.lev5
from bf_data a
inner join bf_orgn_cnsl_tbl b
on a.bf_orgn_cd = b.bf_orgn_cd
[Code] .....
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Oct 16, 2015
I have an inline query that I am trying to convert it into JOIN, results are not coming out the same:
Original query:
SELECT distinct
(select count (distinct LoanID) FROM Q_C_Main_Sub1 WHERE DAY(LastWorked) = DAY(GETDATE()) and MONTH(LastWorked) = MONTH(GETDATE()) and YEAR(LastWorked) = YEAR(GETDATE()) and PrimStat = '1' and Collector = '3') As DcountMy query:
[code]....
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Sep 9, 2015
I have two different SQL 2008 servers, I don't have permission to create a linked server in any of them. i created a trigger on server1.table1 to insert the same record to the remote server server2.table1 using OPENROWSET
i created a stored procedure to insert this record, and i have no issue when i execute the stored procedure. it insert the recored into the remote server.
The problem is when i call the stored procedure from trigger, i get an error message.
Stored Procedure:
USE [DB1]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
[Code] ....
When i try to insert a new description value in the table i got the following error message:
No row was updated
the data in row 1 was not committed
Error source .Net SqlClient Data provider.
Error Message: the operation could not be performed because OLE DB
provider "SQLNCLI10" for linked server "(null)" returned message "The partner transaction manager has disabled its support for remote/network transaction.".
correct the errors entry or press ESC to cancel the change(s).
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Aug 27, 2012
Can the collation used by SSIS be changed or influenced during install or run time? We have found that our databases, that use a mandatory "LATIN1_GENERAL_BIN", have incorrect SSIS Merge Join output. Changing our database collation in testing didn't make a difference. What matters is the data. Which Windows collation is SSIS using?
Example Data:
FIRSTNAME
FIRSTNAME
FIRSTS-A-NAME
FIRSTS_A_NAME
FIRST_NAME
FIRST_NAME
FIRSTname
FIRSTname
FIRS_NAME
put in a Sort task before the Merge Join task as setting advanced properties isn't enough (as described by Eric Johnson here --> [URL] ......
We are using 64-bit SQL Server 2008 R2 w/ SP1 in Windows Server 2008 R2 ENT w/ SP1.
UPDATE from ETL team: Explicitly ordering the source with "COLLATE Latin1_General_CS_AS" seems to have the same effect as using a separate sort task. We don't feel that we can rely on our findings, however, unless we have documentation that this collation is what is behind SSIS.
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Jun 20, 2015
Refer to my query thread on msdn SQL site, how I can achieve the result.
[URL] .....
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Mar 9, 2015
I have two servers (lets call them sA and sB) connected from sA -> sB via a linked server (i.e. sA pulls data across from sB).
I'm building a temp table full of stock symbols on sA, and then I need to update some values on sA using content on sB. The tables on sB are very large (about 500m rows) so I don't want to pull even close to everything across the linked server. Ordinarily I'd do this by joining to the linked server table, but the target table needs to have nolock on it due to their high use.
update t
set someValue = s.SomeValue
from #myTab t
inner join lnk_sB.xref.dbo.Symbols s with (nolock)
on t.id = s.id
From reading around I gather that nolock doesn't work across linked servers. It was noted in another SSC article that you could use nolock by using an OPENQUERY, but then I can't join to my local temp table, and I end up pulling all .5B rows across the linked server.
Is there some way I can limit the content on sB by my temp table on sA but still use nolock?
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Nov 3, 1999
How do I execute a query on a database on a remote server?
I'm clear how to execute queries on databases on a local server.
You simply execute:
select * from database_name.owner_name.table_name
Is there some way to set up a trusted alias to that remote database???
Stumped in Seattle
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May 30, 2015
There is a column for Name with data type varchar 50 the input data is like Alok Kumar, Sunita kuamri, Rohit Gupta Like that. The column contains the data as Combination of First name and second name.I would like to write a select query for selecting first part of name like Alok, Sunit, Rohit and so on only, ignoring the second part of name.
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