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  • Excel cannot access the file with IIS7&Windows Serer 2008 R2(64bit)

    - by user838204
    I have a web project(.Net4) that needs to access Excel file, but it ends up with the following error message: Error occured during file generation.Microsoft Excel cannot access the file 'D:\xx\xx\abc.xls'. There are several possible reasons: • The file name or path does not exist. (Actually it's there) • The file is being used by another program.(It cant happen) • The workbook you are trying to save has the same name as a currently open workbook. In IIS7, I use DefaultAppPool with the Identity "myservice" who's under the Group of Administrators. In the Authentication Page of my website under IIS, Anonymous Authentication was enabled and set to "Application pool identity" and ASP.NET Impersonation was disabled. After searching the solution for hours, I found the following but NONE of them work Create folder in C:\Windows\SysWOW64\config\systemprofile\Desktop. Plz refer:this Grant rights of "myservice" in Component Services. Plz refer:this One thing strange, there is nothing in the Group of IIS_IUSRS. Is that normal? Cause I remember at least two users (DefaultAppPool & Classic .Net AppPool). Plz tell me how to fix the access problem. I assume that's permission problem of IIS but I cant solve it. Thank you.

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  • Wireless Network Issue, Disconnecting Randomly From Network

    - by Surfer513
    I'm having an odd problem with my wireless network. Here is the background information: Server (Windows Server 2008) 1 to 10 end user machines connecting to the network Layer 3 Access Point (Asus WL-330 gE) connected to ethernet of Server and all machines connect to the network via the AP The end user machines get a connection to the server with no problems initially. But then connections are randomly lost throughout the day to the server/network. The wireless NICs of the machines still see the wireless network but are unable to connect to it. Then after some time the connection is regained automatically. I initially thought there was a problem with this particular AP, but then I took the same make/model AP out of storage and still ran into the problem. Any ideas what could be causing this??? Very confusing that the wireless nics on the end user machines can still see the network but not connect, and that the connections are randomly lost/gained. Thanks in advance!

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  • Our application is responding different on client server

    - by WtFudgE
    I have an application running on our local server and it works perfect. However when I deploy my application to our client's server there are problems. If i copy all the sources to another local from their server, it works fine again.... I am talking about an ASP.NET application talking with windows server 2008. The server specs of our client are: intel Xeon 2.13 GHz 6 GB RAM 300 GB HDD windows server 2008 R2 Although I think it's not that important I will describe the problems I am talking about to give u a better idea: It is related to upating and deleting fields in the sql server. Whenever there is more than one user running the application, and updates or deletes (not even the same record!0, there seems to be fields updating/deleting wrongly. But as I said before, if we copy the source to another server it is not the case. So I assumed it is more configuration related. Do you guys have any idea what the issue could be? Thanks a lot EDIT: my client old me he disabled the sql related accounts Could this be related?

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  • SQL CLR not properly enabling

    - by dnolan
    We have a SQL server running SQL 2005 Workgroup 64 bit (9.0.4273), on Windows 2003 server 64 bit. We have run sp_configure and reconfigured the server which indicates that the clr is now enabled. exec sp_configure 'clr enabled', '1' go reconfigure go However, when trying to call CREATE ASSEMBLY the server completely dies on us and we have to do a full reboot of the machine. A little more diagnostic information, even though clr enabled is set to 1 and we have rebooted the full server, running the following statement select * from sys.dm_clr_properties returns directory version state locked CLR version with mscoree which is what it says when the CLR is not enabled on another machine. On a correctly enabled machine (after reboot) this function reads directory C:\Windows\Microsoft.NET\Framework64\v2.0.50727\ version v2.0.50727 state CLR is initialized

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  • 401 - Unauthorized: Access is denied error from web app running in IIS 7.5 using App Pool Identity

    - by Eric Gatesman
    I have an ASP.NET app on a Windows 2008 server, IIS 7.5. When I try to access web site, I get a login popup. If I click "cancel" I get a 401 - Unauthorized: Access is denied due to invalid credentials. The app is using Windows authentication (anonymous is disabled). The app has it's own app pool, running under the App Pool Identity. If I change the app pool to run under the NetworkService account, my website functions just fine. I'm guessing that this is just a permissions issue, but can't figure out what permissions I need to change. I gave the App Pool Identity permissions on the physical directory of the app, but that didn't solve the problem.

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  • Are Windows Domain Service Accounts Really Necessary?

    - by Zach Bonham
    One of the biggest problems we have in automating application deployments is the idea that running IIS AppPools and Windows Services under domain service accounts is a 'best practice'. Unfortunately, this best practice sometimes causes deployment headaches in that either we need to provision a new domain level service account quickly, or once we have the account, we now need to manage the account credentials. I had a great conversation about not making domain level service accounts a requirement and effectively taking one of two approaches: Secure at the node level using machine account(domain\machine$) and add the node to appropriate ActiveDirectory/Sql groups/roles Create local app specific accounts on each machine (machine\myapp) and add that account to appropriate ActiveDirectory/Sql groups/roles (the password here can change per deployment, it doesn't need to be stored) In both cases, it seems that its easier to manage either adding an account to appropriate group/role, or even stand up new, local account, than it is to have to provision a new domain level account and manage those credentials. This would hopefully ease the management burden on ActiveDirectory, Sql Server and Operations teams as there would be no more password management. We've not actually been able to implement this in practice yet. I am coming from a development background, so I'm curious as to how many ways this approach could go wrong? Can we really get rid of domain level service accounts with this direction? I'd appreciate any thoughts from anyone who has taken this path! Thanks! Zach

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  • Client/server application RPC connection gets disconnected very frequently

    - by Chris Thompson
    I have a client/server application that uses RPC for the client to communicate with the server. Fairly regularly, I get an event in the Application log that the RPC connection was disconnected: Client callback failed ((0x80010108) ) I have the Windows Firewall disabled on both machines. I've even run the client on a second computer with a clean Windows XP install without any group policies. This has been going on for a long time and no one has been able to figure out why it's happening. The same client/server app works fine at other client locations. Any thoughts?

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  • Newbie one: Virtual Networks - Hyper-V - Remote Destktop - Only one phisical NIC

    - by josecortesp
    Hello everyone, I'll try to explain my situation and I'll apreciate any help: I have a phisical server (quad core, 4Gb ram, 1TB raid 10, etc) with Win Server 2008 R2 enterprise, running IIS, Printing, etc... Also, I want to set up 2 virtual Servers with 2008 R2 standart one with SQL Server and the other with Team Foundation. What i need is: Being able to access from inside the private phisical network, to Remote Desktops on each of the Virtual and the phisical Servers Had Access from the outside, using a router and port Forwarding, to the TFS server and the IIS server (one is virtualized, the other is phisical) This is it, but note that I only have one Phisical Nic. How do I configure this to work. When i set up the hyper-v role, on the wizard something like it showed up but I don't remmember what i choose, and right now, I cannot access none of the servers from remote desktop, not even from the phisical private network. Can anybody point me, what can i do? Thanks in advance (sorry 4 my english, i'm a spanish talker and my english isn't that good)

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  • Windows Server 2012 R2 application installation slowness

    - by Eric
    Good afternoon, Windows Server 2012 R2 as host fully up to date Windows Server 2012 R2 as guest fully up to date Whether I am running it as a host or guest, whenever I am installing an application that should take a couple minutes it always ends up 3x-5x longer than it should. If I take the same applications and install it on any other OS (IE 2k8, 7,) it they install very quickly. Dell server management software took 30 minutes or so when it takes 5 minutes or so on 2k8. Even a clean install not joined to domain I still experience this same slowness on applications I attempt to install. So my question to everyone is, are you or anyone else experiencing this? I cannot find anything on google so this is why I am here

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  • SRSS Client Print Module must be downloaded every use

    - by Jmcgee73
    I am currently having an issue with SQL Server Reporting Services. Everytime a user clicks the print button for the report, the user must install the ActiveX client print module. The issue is that our clients are not admins on their computers. So therefore they can not install the module. I have gotten around this roughly by adding the SQL address to trust sites, setting "Download signed Active Controls" to enable, and then giving the users permission to write to "C:\Windows\Downloaded Program Files". However, this is fix is not easy to distrubute to our user base. I am using SQL Server 2008 SP3 CU3 running on Server 2008 R2. I believe the browser thinks the version is newer than what is on the server. I have tried downloading the print module CAB file from the SQL server and installing manually. That did not work either. Thanks!

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  • Is ODBC on Windows 2003 slower than on Windows 7?

    - by nbolton
    I am seeing some MSSQL 2005 performance issues, and I am trying to diagnose the cause. I am using SQL profiler to gather query execution times. Both the client (using ODBC), and the SQL server are running on Windows 2003. I am also using Windows 7 (client) with a different Windows 2003 server to compare results. Windows 7 client / Windows 2003 server: SQL management studio: 393ms Through ODBC: 215ms Windows 2003 client: SQL management studio: approx 155ms Through ODBC: 3145ms ... in both cases, I'm running SQL management studio on the client. To me, these figures suggest there's something wrong with the ODBC client on the Windows 2003 server. On Windows, I see that the ODBC "SQL Server" driver is version 6.01.7600.16385 but on Windows 2003, it is 2000.86.3959.00 (by default). Could this be the problem? Is it possible to update an ODBC driver?

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  • Cannot Login to SBS 2008

    - by Ryan Holt
    Hi All, I'm hoping someone has an answer for me... I installed a new Microsoft SBS 2008 server last week and everything appeared to be working normally. I went to reboot the server yesterday to finish the install for Microsoft Windows Installer 4.5 and upon reboot could no longer login to the server via either RDP or local console. The error message I get states that there are no logon servers available to service the logon request. I'm able to login to the server fine via Safe Mode with Networking but cannot login via a normal method. The server is currently at SP1. I attempted to install SP2 inside of safe mode after enabling the installation services via a registry edit but the install failed and rolled back after 2 or 3 hours. It appears that one of the services is not starting for some reason. I believe it's LSASS but can't actually login to see the active services during a normal boot. Does anyone have any suggestions?

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  • How do I resolve the error "The file exists" when restoring a cube backup?

    - by Ant
    I'm trying to restore a cube backup (a .abf file) using SQL Server Management Studio, but I'm getting the error message: The following system error occurred: The file exists. . (Microsoft SQL Server 2005 Analysis Services) (yes, there really are two dots) Does anyone know how to resolve this so I can restore the backup? Here are the steps I'm using: Open Microsoft SQL Server Management Studio Make the connection to the AS server Right-click on the Databases node on the server tree view Choose Restore... Type in a new database name in Restore database Select the backup file in From backup file Enter the correct password Optionally tick Allow database overwrite (it happens both ways) Press OK -- get the above error message

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  • Mirror DFS configuration data between 2 servers/ sites

    - by Retro69
    I have 1 Windows 2008 R2 server in Site A running Domain Integrated DFS in 2008 mode with a Single Namespace with a large number of DFS Targets all configured to point to a share on our NetApp SAN. Step 1. I want to initially copy this configuration data across to a 2012 server in Site A preserving all the configuration data. Step 2. I need to mirror this configuration to a 2nd server in Site B so we dont have a single point of failure for the DFS namespace. For Example. A user in Site B would "connect" to the DFS server in Site B, but if that site was down, it would attempt to connect to the Server in site A and vice versa. Note im not interesting in replicating actual Data here, just the configuration. Our NetApp SANS have mirroring which take care of that. Is this possible? Many thanks.

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  • Can't reach custom C# forms application remotely.

    - by gnucom
    Hello, I'm working in Windows Server 2008. I have a very basic C# forms application (not a service) that is listening on a port, say 56112. When using telnet I can connect from the localhost and send and receive data. For some reason I cannot remotely connect to the application. I know I have a connection because I can telnet to 23 on the remotely fine. I've opened this port on the firewall, created rules in/out in advanced firewall, disabled the firewall completely, and more. Any suggestions would be great! This is the telnet output: Microsoft Telnet> open server.cc 56112 Connecting server.cc...Could not open connection to the host, on port 56112: Connect failed

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  • IIS Hangs on SQL Connections when running ASP.net applications

    - by PaulWaldman
    We have a database server running SQL 2000 and two web servers hosting ASP.net applications. All three servers are running Windows Server 2003 SP2. Our issue is repeatable after about 2 weeks, IIS on one web server is no longer able to establish SQL connections. Static content loads fine. Other non-IIS applications are still able to contact the SQL database server. ODBC functionality also still works. While running SQL profiler a connection is never established from IIS when it is in this state. The only way to fix this situation is to restart the web server. There are no firewalls installed on any machines.

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  • SQL Server 2005 SE SP3 on Windows Server 2008 R2 x64 premature query disconnections

    - by southernpost
    New Dell PowerEdge R910, 4x8 Intel X7560, 192GB RAM, hardware NUMA, local RAID, Broadcom NetExtreme II multiport NIC, unteamed, TCP Offload disabled, RSS disabled, NetDMA disabled, Hyperthreading disabled. SQL Server 2005 SE x64 SP3 on Windows Server 2008 R2 EE x64. No other apps on server. Max Mem = 180GB, Max DOP = 4. Existing Windows Server 2003 R2 EE x64 app server connecting to Dell via firewall using SQL Authenticated logins. Symptoms: Intermittent errors at the app server: A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.) Findings: Running queries from SSMS located on another machine within the same domain as the SQL Server run without error. SQLIO showed good performance. Windows and SQL logs show no related messages. Microsoft reveiwed PssDiag trace and stated that "We are not seeing timeouts from SQL Side. The queries bring run against the database are timing out within 9secs. This is a database connectivity error." "we can also see from the AttnSeq column that we are also not seeing any Attentions from the SQL Side.". Dell has confirmed that we are using the latest Broadcom drivers.

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  • What would cause a query being ran from SSMS on local box to run slower then from remote box

    - by Racter
    When I run a simply query such as "Select Column1, Column2 from Table A" from within SSMS running on my production SQL Server the results seems to take extremely long (45Min). If I run the same query from my dev system’s SSMS connecting to the production SQL Server the results return within a few seconds (<60sec). One thing I have notices is if the system was just rebooted performance is good for a bit. It is hard to determine a time as I have had it start running slow very quickly after reboot but at most it performed good for 20min and then start acting up. Also, just restarting the SQL service does not resolve the issue or provide a temporary performance boost. Specs for Server are: Windows Server 2003, Enterprise Edition, SP2 4 X Intel Xeon 3.6GHz - 6GB System Memory Active/Active Cluster SQL Server 2005 SP2 (9.0.3239)

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  • Scaling web application with SQL Server 2008 database

    - by John
    I have a database which has 90% of read only tables. 10% of the tables has writable data. We need to scale the ASP.NET application.We need to add more users who will not be writing to the database. We are thinking of adding another server and routing the users who need read only access to that server. Is there a way to replicate just some tables to another database server. Since the 90% of data doesnt change, we don't want to setup any full database replication. Please advise.

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  • SQL SERVER – Auto Complete and Format T-SQL Code – Devart SQL Complete

    - by pinaldave
    Some people call it laziness, some will call it efficiency, some think it is the right thing to do. At any rate, tools are meant to make a job easier, and I like to use various tools. If we consider the history of the world, if we all wanted to keep traditional practices, we would have never invented the wheel.  But as time progressed, people wanted convenience and efficiency, which then led to laziness. Wanting a more efficient way to do something is not inherently lazy.  That’s how I see any efficiency tools. A few days ago I found Devart SQL Complete.  It took less than a minute to install, and after installation it just worked without needing any tweaking.  Once I started using it I was impressed with how fast it formats SQL code – you can write down any terms or even copy and paste.  You can start typing right away, and it will complete keywords, object names, and fragmentations. It completes statement expressions.  How many times do we write insert, update, delete?  Take this example: to alter a stored procedure name, we don’t remember the code written in it, you have to write it over again, or go back to SQL Server Studio Manager to create and alter which is very difficult.  With SQL Complete , you can write “alter stored procedure,” and it will finish it for you, and you can modify as needed. I love to write code, and I love well-written code.  When I am working with clients, and I find people whose code have not been written properly, I feel a little uncomfortable.  It is difficult to deal with code that is in the wrong case, with no line breaks, no white spaces, improper indents, and no text wrapping.  The worst thing to encounter is code that goes all the way to the right side, and you have to scroll a million times because there are no breaks or indents.  SQL Complete will take care of this for you – if a developer is too lazy for proper formatting, then Devart’s SQL formatter tool will make them better, not lazier. SQL Management Studio gives information about your code when you hover your mouse over it, however SQL Complete goes further in it, going into the work table, and the current rate idea, too. It gives you more information about the parameters; and last but not least, it will just take you to the help file of code navigation.  It will open object explorer in a document viewer.  You can start going through the various properties of your code – a very important thing to do. Here are are interesting Intellisense examples: 1) We are often very lazy to expand *however, when we are using SQL Complete we can just mouse over the * and it will give us all the the column names and we can select the appropriate columns. 2) We can put the cursor after * and it will give us option to expand it to all the column names by pressing the Tab key. 3) Here is one more Intellisense feature I really liked it. I always alias my tables and I always select the alias with special logic. When I was using SQL Complete I selected just a tablename (without schema name) and…(just like below image) … and it autocompleted the schema and alias name (the way I needed it). I believe using SQL Complete we can work faster.  It supports all versions of SQL Server, and works SQL formatting.  Many businesses perform code review and have code standards, so why not use an efficiency tool on everyone’s computer and make sure the code is written correctly from the first time?  If you’re interested in this tool, there are free editions available.  If you like it, you can buy it.  I bought it because it works.  I love it, and I want to hear all your opinions on it, too. You can get the product for FREE.  Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL Utility, T SQL, Technology

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  • SQL SERVER – Merge Operations – Insert, Update, Delete in Single Execution

    - by pinaldave
    This blog post is written in response to T-SQL Tuesday hosted by Jorge Segarra (aka SQLChicken). I have been very active using these Merge operations in my development. However, I have found out from my consultancy work and friends that these amazing operations are not utilized by them most of the time. Here is my attempt to bring the necessity of using the Merge Operation to surface one more time. MERGE is a new feature that provides an efficient way to do multiple DML operations. In earlier versions of SQL Server, we had to write separate statements to INSERT, UPDATE, or DELETE data based on certain conditions; however, at present, by using the MERGE statement, we can include the logic of such data changes in one statement that even checks when the data is matched and then just update it, and similarly, when the data is unmatched, it is inserted. One of the most important advantages of MERGE statement is that the entire data are read and processed only once. In earlier versions, three different statements had to be written to process three different activities (INSERT, UPDATE or DELETE); however, by using MERGE statement, all the update activities can be done in one pass of database table. I have written about these Merge Operations earlier in my blog post over here SQL SERVER – 2008 – Introduction to Merge Statement – One Statement for INSERT, UPDATE, DELETE. I was asked by one of the readers that how do we know that this operator was doing everything in single pass and was not calling this Merge Operator multiple times. Let us run the same example which I have used earlier; I am listing the same here again for convenience. --Let’s create Student Details and StudentTotalMarks and inserted some records. USE tempdb GO CREATE TABLE StudentDetails ( StudentID INTEGER PRIMARY KEY, StudentName VARCHAR(15) ) GO INSERT INTO StudentDetails VALUES(1,'SMITH') INSERT INTO StudentDetails VALUES(2,'ALLEN') INSERT INTO StudentDetails VALUES(3,'JONES') INSERT INTO StudentDetails VALUES(4,'MARTIN') INSERT INTO StudentDetails VALUES(5,'JAMES') GO CREATE TABLE StudentTotalMarks ( StudentID INTEGER REFERENCES StudentDetails, StudentMarks INTEGER ) GO INSERT INTO StudentTotalMarks VALUES(1,230) INSERT INTO StudentTotalMarks VALUES(2,255) INSERT INTO StudentTotalMarks VALUES(3,200) GO -- Select from Table SELECT * FROM StudentDetails GO SELECT * FROM StudentTotalMarks GO -- Merge Statement MERGE StudentTotalMarks AS stm USING (SELECT StudentID,StudentName FROM StudentDetails) AS sd ON stm.StudentID = sd.StudentID WHEN MATCHED AND stm.StudentMarks > 250 THEN DELETE WHEN MATCHED THEN UPDATE SET stm.StudentMarks = stm.StudentMarks + 25 WHEN NOT MATCHED THEN INSERT(StudentID,StudentMarks) VALUES(sd.StudentID,25); GO -- Select from Table SELECT * FROM StudentDetails GO SELECT * FROM StudentTotalMarks GO -- Clean up DROP TABLE StudentDetails GO DROP TABLE StudentTotalMarks GO The Merge Join performs very well and the following result is obtained. Let us check the execution plan for the merge operator. You can click on following image to enlarge it. Let us evaluate the execution plan for the Table Merge Operator only. We can clearly see that the Number of Executions property suggests value 1. Which is quite clear that in a single PASS, the Merge Operation completes the operations of Insert, Update and Delete. I strongly suggest you all to use this operation, if possible, in your development. I have seen this operation implemented in many data warehousing applications. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Joins, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: Merge

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  • SQL SERVER – Puzzle – Statistics are not Updated but are Created Once

    - by pinaldave
    After having excellent response to my quiz – Why SELECT * throws an error but SELECT COUNT(*) does not?I have decided to ask another puzzling question to all of you. I am running this test on SQL Server 2008 R2. Here is the quick scenario about my setup. Create Table Insert 1000 Records Check the Statistics Now insert 10 times more 10,000 indexes Check the Statistics – it will be NOT updated Note: Auto Update Statistics and Auto Create Statistics for database is TRUE Expected Result – Statistics should be updated – SQL SERVER – When are Statistics Updated – What triggers Statistics to Update Now the question is why the statistics are not updated? The common answer is – we can update the statistics ourselves using UPDATE STATISTICS TableName WITH FULLSCAN, ALL However, the solution I am looking is where statistics should be updated automatically based on algorithm mentioned here. Now the solution is to ____________________. Vinod Kumar is not allowed to take participate over here as he is the one who has helped me to build this puzzle. I will publish the solution on next week. Please leave a comment and if your comment consist valid answer, I will publish with due credit. Here is the script to reproduce the scenario which I mentioned. -- Execution Plans Difference -- Create Sample Database CREATE DATABASE SampleDB GO USE SampleDB GO -- Create Table CREATE TABLE ExecTable (ID INT, FirstName VARCHAR(100), LastName VARCHAR(100), City VARCHAR(100)) GO -- Insert One Thousand Records -- INSERT 1 INSERT INTO ExecTable (ID,FirstName,LastName,City) SELECT TOP 1000 ROW_NUMBER() OVER (ORDER BY a.name) RowID, 'Bob', CASE WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%2 = 1 THEN 'Smith' ELSE 'Brown' END, CASE WHEN ROW_NUMBER() OVER (ORDER BY a.name)%20 = 1 THEN 'New York' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 5 THEN 'San Marino' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 3 THEN 'Los Angeles' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 7 THEN 'La Cinega' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 13 THEN 'San Diego' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 17 THEN 'Las Vegas' ELSE 'Houston' END FROM sys.all_objects a CROSS JOIN sys.all_objects b GO -- Display statistics of the table - none listed sp_helpstats N'ExecTable', 'ALL' GO -- Select Statement SELECT FirstName, LastName, City FROM ExecTable WHERE City  = 'New York' GO -- Display statistics of the table sp_helpstats N'ExecTable', 'ALL' GO -- Replace your Statistics over here -- NOTE: Replace your _WA_Sys with stats from above query DBCC SHOW_STATISTICS('ExecTable', _WA_Sys_00000004_7D78A4E7); GO -------------------------------------------------------------- -- Round 2 -- Insert Ten Thousand Records -- INSERT 2 INSERT INTO ExecTable (ID,FirstName,LastName,City) SELECT TOP 10000 ROW_NUMBER() OVER (ORDER BY a.name) RowID, 'Bob', CASE WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%2 = 1 THEN 'Smith' ELSE 'Brown' END, CASE WHEN ROW_NUMBER() OVER (ORDER BY a.name)%20 = 1 THEN 'New York' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 5 THEN 'San Marino' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 3 THEN 'Los Angeles' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 7 THEN 'La Cinega' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 13 THEN 'San Diego' WHEN  ROW_NUMBER() OVER (ORDER BY a.name)%20 = 17 THEN 'Las Vegas' ELSE 'Houston' END FROM sys.all_objects a CROSS JOIN sys.all_objects b GO -- Select Statement SELECT FirstName, LastName, City FROM ExecTable WHERE City  = 'New York' GO -- Display statistics of the table sp_helpstats N'ExecTable', 'ALL' GO -- Replace your Statistics over here -- NOTE: Replace your _WA_Sys with stats from above query DBCC SHOW_STATISTICS('ExecTable', _WA_Sys_00000004_7D78A4E7); GO -- You will notice that Statistics are still updated with 1000 rows -- Clean up Database DROP TABLE ExecTable GO USE MASTER GO ALTER DATABASE SampleDB SET SINGLE_USER WITH ROLLBACK IMMEDIATE; GO DROP DATABASE SampleDB GO Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Index, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: SQL Statistics, Statistics

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  • Windows Server 2008 DHCP with RRAS

    - by Guillermo Prandi
    I have a Windows Server 2008 R2 which is a member of a domain, but is placed in a remote location. The server is directly connected to Internet. Clients need to access a particular insecure TCP service in this server (ports 9730 and 9731). Since clients have dynamic IP addresses I cannot know in advance, I thought it would be nice to have them connected through a VPN in order to access the insecure service, but ONLY to access that service, like this: Client ------> VPN TUNNEL ------> (Insecure service at Server) | \----> (Normal internet access) I'd enable the insecure ports in the firewall only from VPN accesses. For this I configured RRAS in the server and gave it a static IP address range (172.19.1.2 through 172.19.1.254) to serve the clients. First I thought I could use DHCP to assign the addresses, but I cannot use DHCP in my LAN connection (not allowed by the hosting service). I tried configuring DHCP binding it to a Microsoft Loopback Adapter, but that's not supported as a DHCP source by RRAS. What I want to accomplish is to send specific DHCP options to the client (network mask, routing table, etc.). In particular: Prevent the client from having the server as default router (without changing the client's "use default gateway in remote network"). Have it as a route for the server's internal RRAS address only (172.19.1.1). Prevent the client from using a 255.255.0.0 mask for the 172.19.x.x network (a 255.255.255.0 mask would be better). Can I do that with RRAS only? How? Currently, the only solution I can think of is to use DHCP in the LAN adapter, but filter DHCP packets so they don't reach the provider's network. However, I'm not sure if that will work. Any suggestions are welcomed! Guille

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  • How to inspect remote SMTP server's TLS certificate?

    - by Miles Erickson
    We have an Exchange 2007 server running on Windows Server 2008. Our client uses another vendor's mail server. Their security policies require us to use enforced TLS. This was working fine until recently. Now, when Exchange tries to deliver mail to the client's server, it logs the following: A secure connection to domain-secured domain 'ourclient.com' on connector 'Default external mail' could not be established because the validation of the Transport Layer Security (TLS) certificate for ourclient.com failed with status 'UntrustedRoot. Contact the administrator of ourclient.com to resolve the problem, or remove the domain from the domain-secured list. Removing ourclient.com from the TLSSendDomainSecureList causes messages to be delivered successfully using opportunistic TLS, but this is a temporary workaround at best. The client is an extremely large, security-sensitive international corporation. Our IT contact there claims to be unaware of any changes to their TLS certificate. I have asked him repeatedly to please identify the authority that generated the certificate so that I can troubleshoot the validation error, but so far he has been unable to provide an answer. For all I know, our client could have replaced their valid TLS certificate with one from an in-house certificate authority. Does anyone know a way to manually inspect a remote SMTP server's TLS certificate, as one can do for a remote HTTPS server's certificate in a web browser? It could be very helpful to determine who issued the certificate and compare that information against the list of trusted root certificates on our Exchange server.

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  • SQL SERVER – CXPACKET – Parallelism – Advanced Solution – Wait Type – Day 7 of 28

    - by pinaldave
    Earlier we discussed about the what is the common solution to solve the issue with CXPACKET wait time. Today I am going to talk about few of the other suggestions which can help to reduce the CXPACKET wait. If you are going to suggest that I should focus on MAXDOP and COST THRESHOLD – I totally agree. I have covered them in details in yesterday’s blog post. Today we are going to discuss few other way CXPACKET can be reduced. Potential Reasons: If data is heavily skewed, there are chances that query optimizer may estimate the correct amount of the data leading to assign fewer thread to query. This can easily lead to uneven workload on threads and may create CXPAKCET wait. While retrieving the data one of the thread face IO, Memory or CPU bottleneck and have to wait to get those resources to execute its tasks, may create CXPACKET wait as well. Data which is retrieved is on different speed IO Subsystem. (This is not common and hardly possible but there are chances). Higher fragmentations in some area of the table can lead less data per page. This may lead to CXPACKET wait. As I said the reasons here mentioned are not the major cause of the CXPACKET wait but any kind of scenario can create the probable wait time. Best Practices to Reduce CXPACKET wait: Refer earlier article regarding MAXDOP and Cost Threshold. De-fragmentation of Index can help as more data can be obtained per page. (Assuming close to 100 fill-factor) If data is on multiple files which are on multiple similar speed physical drive, the CXPACKET wait may reduce. Keep the statistics updated, as this will give better estimate to query optimizer when assigning threads and dividing the data among available threads. Updating statistics can significantly improve the strength of the query optimizer to render proper execution plan. This may overall affect the parallelism process in positive way. Bad Practice: In one of the recent consultancy project, when I was called in I noticed that one of the ‘experienced’ DBA noticed higher CXPACKET wait and to reduce them, he has increased the worker threads. The reality was increasing worker thread has lead to many other issues. With more number of the threads, more amount of memory was used leading memory pressure. As there were more threads CPU scheduler faced higher ‘Context Switching’ leading further degrading performance. When I explained all these to ‘experienced’ DBA he suggested that now we should reduce the number of threads. Not really! Lower number of the threads may create heavy stalling for parallel queries. I suggest NOT to touch the setting of number of the threads when dealing with CXPACKET wait. Read all the post in the Wait Types and Queue series. Note: The information presented here is from my experience and I no way claim it to be accurate. I suggest reading book on-line for further clarification. All the discussion of Wait Stats over here is generic and it varies by system to system. You are recommended to test this on development server before implementing to production server. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: DMV, Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, SQL Wait Stats, SQL Wait Types, T SQL, Technology

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