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• An XEvent a Day (21 of 31) – The Future – Tracking Blocking in Denali

  - by Jonathan Kehayias

  One of my favorite features that was added to SQL Server 2005 has been the Blocked Process Report trace event which collects an XML report whenever a process is blocked inside of the database engine longer than the user configurable threshold.  I wrote an article about this feature on SQL Server Central  two years ago titled Using the Blocked Process Report in SQL Server 2005/2008 .  One of the aspects of this feature is that it requires that you either have a SQL Trace running that...(read more)

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• Windows Server 2008R2 - can't change or remove the default gateway

  - by disserman

  We've installed VMWare Server 2.0 on Windows 2008R2. After some time playing with it (actually only removing host-only and nat networks, and binding adapters to the specified vmnets) we've noticed a strange problem: if you change or remove the default gateway on the network card, the server completely loses a network connection you can't ping it from the subnet, it also can't connect to anyone. When the gateway is removed and a server tries to connect to the other machines, I can see some incoming packets using a sniffer, but I believe they are damaged in some kind (I'm not a mega-guru in TCP/IP and can't find a mistake in a binary translation of the packet) because the other side doesn't respond. What we tried: removed vmware server using add/remove programs deleted everything related to the vmware server and all installed network adapters in the windows registry double checked for the vmware bridged protocol driver file, it's physically absent and no any links in the registry. performed a tcp/ip reset with netsh and disabled/enabled all network adapters in the device manager to recreate a registry keys for them. tried another network adapter. and the situation is the same: as soon you remove or change the default gateway, windows stops working. The total absurd of the situation is that the default gateway points to the non-existing IP. But when it's set, you can ping a server from the subnet, when you remove it - you can't. Any help? I'm starting thinking the new build of the VMWare Server is some kind of the malware... :)

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• Install SharePoint 2013 on a two server farm

  - by sreejukg

  When SharePoint 2010 was released, I published an article on how to install SharePoint on a two server farm. You can find that article from the below link. http://weblogs.asp.net/sreejukg/archive/2010/09/28/install-sharepoint-2010-in-a-farm-environment.aspx Now it is the time for SharePoint 2013. SharePoint 2013 brings lots of improvements to the topologies, but still supports two-server architecture. Be noted that “two-server architecture” is meant for small implementations with limited service applications. Refer the below link to understand more about the SharePoint architecture http://technet.microsoft.com/en-us/sharepoint/fp123594.aspx A two tier farm consists of a database server and a web/application server as follows. In this article I am going to explain how to install SharePoint in a two server farm. I prepared 2 servers, both of them joined to a domain(SP2013Domain), and in one server I installed SQL Server 2012 (Server name: SP2013_DB). Now I am going to install SharePoint 2013 in the second server (Server Name: SP2013). The following domain accounts are created for the installation.   User Account Purpose Server roles required SQLService - SQL Server service account - This account is used as the service account for SQL Server. - domain user account / local account spSetup - You will be running SharePoint setup and SharePoint products and configuration wizard using this account. -domain user account - Member of the Administrators group on each server on which Setup is run(In our case SP2013) - SQL Server login on the computer running SQL Server - Member of the Server admin SQL Server security role spDataaccess - Configure and manage server farm. This - Application pool identity for central admin website - Microsoft SharePoint Foundation Workflow Timer Service Domain user account (Other permissions will be set to this account automatically)   The above are the minimum list of accounts needed for SharePoint 2013 installation. Now you need additional accounts for services, application pool identities for web applications etc. Refer the service accounts requirements for SharePoint from the below link. http://technet.microsoft.com/en-us/library/cc263445.aspx In order to install SharePoint 2013 login to the server using setup account(spsetup). Now run the setup from the installation media. First you need to install the pre-requisites. During the installation process, the server may restart several times. The installation wizard will guide you through the installation. In the next step, you need to agree on the terms and conditions as usual. Once you click next, the installation will start immediately. The installation wizard will let you know the progress of the installation. During the installation you may receive notifications to restart the server, you need to just click the finish button so that the system will be restarted. Once all the pre-requisites are installed, you will get the success message as below. Click finish to close the dialog. Now from the media, run the setup again and this time you choose install SharePoint server. In the next screen, you need to enter the product key, and then click continue. Now you need to agree on the terms and conditions for SharePoint 2013, and click continue. Choose the file location as per your policies and click on the install now button. You will see the installation progress. Once completed, you will see the installation completed dialog. Make sure you select the run products and configuration wizard option and click close. From the start screen, click next to start the configuration wizard. You will receive warning telling you some of the services will be stopped during the installation. Select “create new server farm” radio button and click next. In the next step, you need to enter the configuration database settings. Enter the database server details and then specify the database access account. You need to specify the farm account(spdataaccess). The wizard will grant additional privileges to the account as needed. In the next step you need to specify the passphrase, you need to note this as you need this passphrase if you add additional server to the farm. In the next step, you need to enter the central administration website port and security settings. You can choose a port or just keep it as suggested by the wizard. Click next, you will see the summary of what you have been selected. Verify the selected settings and if you want to change any, just click back and change them, or click continue to start the configuration. The configuration may take some time, you can view the progress, in case of any error, you will get the log file, you need to fix any error and again start the configuration wizard. Once the configuration successful, you will see the success message. Just click finish. Now you can browse the central administration website. It is good to check the health analyzer to review whether there are any errors/warnings. No warnings/errors indicate a good installation. Two-Server architecture is the least configuration for production environments. For small firms with less number of employees can implement SharePoint 2013 using this topology and as the workload increases, they can add more servers to the farm without reconstructing everything.

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• General directions on developing a server side control system for JS/Canvas Action RPG

  - by Billy Ninja

  Well, yesterday I asked on anti-cheat JS, and confirmed what I kind of already knew that it's just not possible. Now I wanna measure roughly how hard it is to implement a server side checking that is agnostic to client input, that does not mess with the game experience so much. I don't wanna waste to much resource on this matter, since it's going to be initially a single player game, that I may or would like to introduce some kind of ranking, trading system later on. I'd rather deliver better more cool game features instead. I don't wanna have to guarantee super fast server response to keep the game going lag free. I'd rather go with more loose discrete control of key variables and instances. Like store user's action on a fifo buffer on the client, and push that actions to the server gradually. I'd love to see a elegant, generic solution that I could plug into my client game logic root (not having to scatter treatments everywhere in my client js) - and have few classes on Node.js server that could handle that - without having to mirror/describe all of my game entities a second time on the server.

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• Scripting a database copy from MS Sql 2005 to 2008 without detach/backup/RDP

  - by James Santiago

  My goal is to move a single SQL 2005 database to a seperate 2008 server. The issue is my level of access to both servers. On each I can only access the database and nothing else. I cant create a backup file or detach the database because I don't have access to the file system or to create a proxy. I've tried using the generate script function of sql 2005 management studio express to restore the schema but receive command not supported errors when attempting to execute the sql on the new database. Similarly I tried using EMS SQL Manager 2005 Lite to script a backup of the schema and data but ran into similar problems. How do I go about acomplishing this? I can't seem to find any solutions outside of using the detach and backup functions.

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• Attaching databases of sql 2000

  - by jbp117

  I have few databses of sql 2000 on windows 2000. Can I attach these databases to another instance of SQL Server 2000 on anothermachine having windows 2003 installed?? Does attach and detach of databases are platform independent??

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• SQL Server 2005 Table Alter History

  - by Kayes

  Hi. Does SQL Server maintains any history to track table alterations like column add, delete, rename, type/ length change etc? I found many suggest to use stored procedures to do this manually. But I'm curious if SQL Server keeps such history in any system tables? Thanks.

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• DiscountASP.NET Launches SQL Server Profiling as a Service

  - by wisecarver

  DiscountASP.NET announces enhancing our SQL Server hosting with the launch of SQL Server Profiling as a service. SQL Profiler is a powerful tool that allows the application and database developer to troubleshoot general SQL locking problems, performance issues, and perform database tuning. With our SQL Profiling as a Service customers can schedule a database trace at a specific time of their choosing and offers a new way to help our customers troubleshoot. For more information, visit: http://www...(read more)

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• DiscountASP.NET Launches SQL Server Profiling as a Service

  - by wisecarver

  DiscountASP.NET announces enhancing our SQL Server hosting with the launch of SQL Server Profiling as a service. SQL Profiler is a powerful tool that allows the application and database developer to troubleshoot general SQL locking problems, performance issues, and perform database tuning. With our SQL Profiling as a Service customers can schedule a database trace at a specific time of their choosing and offers a new way to help our customers troubleshoot. For more information, visit: http://www...(read more)

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• Strange Sql Server 2005 behavior

  - by Justin C

  Background: I have a site built in ASP.NET with Sql Server 2005 as it's database. The site is the only site on a Windows Server 2003 box sitting in my clients server room. The client is a local school district, so for data security reasons there is no remote desktop access and no remote Sql Server connection, so if I have to service the database I have to be at the terminal. I do have FTP access to update ASP code. Problem: I was contacted yesterday about an issue with the system. When I looked in to it, it seems a bug that I had solved nearly a year ago had returned. I have a stored procedure that used to take an int as a parameter but a year ago we changed the structure of the system and updated the stored procedure to take an nvarchar(10). The stored procedure somehow changed back to taking an int instead of an nvarchar. There is an external hard drive connected to the server that copies data periodically and has the ability to restore the server in case of failure. I would have assumed that somehow an older version of the database had been restored, but data that I know was inserted 7 days and 1 day before the bug occurred is still in the database. Question: Is there anyway that the structure of a Sql Server 2005 database can revert to a previous version or be restored to a previous version without touching the actual data? No one else should have access to the server so I'm going a little insane trying to figure out how this even happened. Any ideas?

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• SQL Server 2012 content on Channel 9

  - by jamiet

  A mountain of SQL Server 2012 video content featuring Greg Low, Jonathan Kehayias, Joe Sack and Roger Doherty has just been released on Channel 9. Channel 9 has great support for tags and RSS feeds so if you want to automatically download all of that content simply you can add the following RSS feed: http://channel9.msdn.com/Tags/sql+server+2012/RSS to your podcast reader of choice and have fun learning about all the new features in SQL Server 2012 such as: AlwaysOn Power View SSDT SSRS Data Alerts SSAS Tabular Modelling DAX Improvements MDS improvements SSIS improvements DQS StreamInsight improvements Data-Tier Apps (DACs) LocalDB FileTable Spatial improvements T-SQL paging Distributed Replay XEvents improvements ADO.Net Code-first T-SQL improvements Server roles Partitioning improvements ColumnStore Whew, quite a list! @jamiet

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• SQL Server 2012 content on Channel 9

  - by jamiet

  A mountain of SQL Server 2012 video content featuring Greg Low, Jonathan Kehayias, Joe Sack and Roger Doherty has just been released on Channel 9. Channel 9 has great support for tags and RSS feeds so if you want to automatically download all of that content simply you can add the following RSS feed: http://channel9.msdn.com/Tags/sql+server+2012/RSS to your podcast reader of choice and have fun learning about all the new features in SQL Server 2012 such as: AlwaysOn Power View SSDT SSRS Data Alerts SSAS Tabular Modelling DAX Improvements MDS improvements SSIS improvements DQS StreamInsight improvements Data-Tier Apps (DACs) LocalDB FileTable Spatial improvements T-SQL paging Distributed Replay XEvents improvements ADO.Net Code-first T-SQL improvements Server roles Partitioning improvements ColumnStore Whew, quite a list! @jamiet

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• SQL Server 2005 Merge Replication to SQL Server CE 3.5

  - by user33067

  Hi, In my organization, we have a SQL Server 2005 database server (DBServer). Users of an application will normally be connected to DBServer, but, occasionally, would like to disconnect and continue their work on a laptop using SQL Server Compact Edition 3.5 (SQLCE). Due to this, we have been looking into using Merge Replication between the DBServer and SQLCE. From what I have read about this process, IIS must be installed on "the server"... yet, I have found no indication to whether this is talking about DBServer or SQLCE. I had assumed the documentation was referring to DBServer and proposed this to our networking staff. That idea was quickly put to rest as it is not our policy to install IIS on an internal server. This is where our SQL Server 2005 web server (WebServer) entered the picture. The idea being that IIS would be installed on WebServer and would be the conduit for DBServer and SQLCE to communicate. This sounded like a good idea at first, until I started looking for documentation on this type of setup. Everything I have been able deals with a DBServer -- SQLCE -- DBServer setup... nothing on DBServer -- WebServer -- SQLCE -- WebServer -- DBServer. Questions: Is going with a 3 server setup ideal? Does anyone have documentation on this type of setup? Does IIS even need to be running on one of the big servers, or can it just run off the laptop with SQLCE on it? (I'd really like this option ;))

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• How to synchronize iis between 2008r2 64bit to 2008 32 bit

  - by Robert Ivanc

  Hi, Does anyone know of a way to synchronize iis between 2008r2 64bit to 2008 32 bit. Msdeploy doesn't seem to like going from 64bit to 32 bit. :(

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• What is happening in this T-SQL code?

  - by Ben McCormack

  I'm just starting to learn T-SQL and could use some help in understanding what's going on in a particular block of code. I modified some code in an answer I received in a previous question, and here is the code in question: DECLARE @column_list AS varchar(max) SELECT @column_list = COALESCE(@column_list, ',') + 'SUM(Case When Sku2=' + CONVERT(varchar, Sku2) + ' Then Quantity Else 0 End) As [' + CONVERT(varchar, Sku2) + ' - ' + Convert(varchar,Description) +'],' FROM OrderDetailDeliveryReview Inner Join InvMast on SKU2 = SKU and LocationTypeID=4 GROUP BY Sku2 , Description ORDER BY Sku2 Set @column_list = Left(@column_list,Len(@column_list)-1) Select @column_list ---------------------------------------- 1 row is returned: ,SUM(Case When Sku2=157 Then Quantity Else 0 End) As [157 -..., SUM(Case ... The T-SQL code does exactly what I want, which is to make a single result based on the results of a query, which will then be used in another query. However, I can't figure out how the SELECT @column_list =... statement is putting multiple values into a single string of characters by being inside a SELECT statement. Without the assignment to @column_list, the SELECT statement would simply return multiple rows. How is it that by having the variable within the SELECT statement that the results get "flattened" down into one value? How should I read this T-SQL to properly understand what's going on?

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• SQL Express as a main DB

  - by JD

  Hi everyone, Does anyone out there use SQL Express 2008 R2 in a production environment? I am looking at hosting a Windows VPS as a server for a client software product I have developed. Clients connect to the server, send their data to a service running on the server, and the service updates the database. I'm trying to keep running costs down, and whilst I have a license for SQL Developer I obviously can't use this in a production environment. Would it be wise/possible to use SQL Express 2008, and if so why/why not? Thanks, JD

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• express+jade: provided local variable is undefined in view (node.js + express + jade)

  - by Jake

  Hello. I'm implementing a webapp using node.js and express, using the jade template engine. Templates render fine, and can access helpers and dynamic helpers, but not local variables other than the "body" local variable, which is provided by express and is available and defined in my layout.jade. This is some of the code: app.set ('view engine', 'jade'); app.get ("/test", function (req, res) { res.render ('test', { locals: { name: "jake" } }); }); and this is test.jade: p hello =name when I remove the second line (referencing name), the template renders correctly, showing the word "hello" in the web page. When I include the =name, it throws a ReferenceError: 500 ReferenceError: Jade:2 NaN. 'p hello' NaN. '=name' name is not defined NaN. 'p hello' NaN. '=name' I believe I'm following the jade and express examples exactly with respect to local variables. Am I doing something wrong, or could this be a bug in express or jade?

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• Download SQL Server 2008 R2 Express (Database Size Limit Increased to 10GB! )

  - by Aamir Hasan

  Yesterday i was researching about SQL Server 2008. i found New release of MS SQL Server 2008 R2, which have many new BI features and enhancements. There is a tiny cute feature that I am sure all of us will appreciate a lot. The product team has increased the Database Size limit for SQL Server 2008 R2 Express from 4 GB to 10 GB. So if you have got a growing SQL Server Express database that is close to the 4 GB Limit, hurry, upgrade to R2 Express. See the announcement from Product Team. SQL Server 2008 R2 Express download. SQL Server 2008 R2 Express Download

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• Where is the SQL Azure Development Environment

  - by BuckWoody

  Recently I posted an entry explaining that you can develop in Windows Azure without having to connect to the main service on the Internet, using the Software Development Kit (SDK) which installs two emulators - one for compute and the other for storage. That brought up the question of the same kind of thing for SQL Azure. The short answer is that there isn’t one. While we’ll make the development experience for all versions of SQL Server, including SQL Azure more easy to write against, you can simply treat it as another edition of SQL Server. For instance, many of us use the SQL Server Developer Edition - which in versions up to 2008 is actually the Enterprise Edition - to develop our code. We might write that code against all kinds of environments, from SQL Express through Enterprise Edition. We know which features work on a certain edition, what T-SQL it supports and so on, and develop accordingly. We then test on the actual platform to ensure the code runs as expected. You can simply fold SQL Azure into that same development process. When you’re ready to deploy, if you’re using SQL Server Management Studio 2008 R2 or higher, you can script out the database when you’re done as a SQL Azure script (with change notifications where needed) by selecting the right “Engine Type” on the scripting panel: (Thanks to David Robinson for pointing this out and my co-worker Rick Shahid for the screen-shot - saved me firing up a VM this morning!) Will all this change? Will SSMS, “Data Dude” and other tools change to include SQL Azure? Well, I don’t have a specific roadmap for those tools, but we’re making big investments on Windows Azure and SQL Azure, so I can say that as time goes on, it will get easier. For now, make sure you know what features are and are not included in SQL Azure, and what T-SQL is supported. Here are a couple of references to help: General Guidelines and Limitations: http://msdn.microsoft.com/en-us/library/ee336245.aspx Transact-SQL Supported by SQL Azure: http://msdn.microsoft.com/en-us/library/ee336250.aspx SQL Azure Learning Plan: http://blogs.msdn.com/b/buckwoody/archive/2010/12/13/windows-azure-learning-plan-sql-azure.aspx

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• Where is the SQL Azure Development Environment

  - by BuckWoody

  Recently I posted an entry explaining that you can develop in Windows Azure without having to connect to the main service on the Internet, using the Software Development Kit (SDK) which installs two emulators - one for compute and the other for storage. That brought up the question of the same kind of thing for SQL Azure. The short answer is that there isn’t one. While we’ll make the development experience for all versions of SQL Server, including SQL Azure more easy to write against, you can simply treat it as another edition of SQL Server. For instance, many of us use the SQL Server Developer Edition - which in versions up to 2008 is actually the Enterprise Edition - to develop our code. We might write that code against all kinds of environments, from SQL Express through Enterprise Edition. We know which features work on a certain edition, what T-SQL it supports and so on, and develop accordingly. We then test on the actual platform to ensure the code runs as expected. You can simply fold SQL Azure into that same development process. When you’re ready to deploy, if you’re using SQL Server Management Studio 2008 R2 or higher, you can script out the database when you’re done as a SQL Azure script (with change notifications where needed) by selecting the right “Engine Type” on the scripting panel: (Thanks to David Robinson for pointing this out and my co-worker Rick Shahid for the screen-shot - saved me firing up a VM this morning!) Will all this change? Will SSMS, “Data Dude” and other tools change to include SQL Azure? Well, I don’t have a specific roadmap for those tools, but we’re making big investments on Windows Azure and SQL Azure, so I can say that as time goes on, it will get easier. For now, make sure you know what features are and are not included in SQL Azure, and what T-SQL is supported. Here are a couple of references to help: General Guidelines and Limitations: http://msdn.microsoft.com/en-us/library/ee336245.aspx Transact-SQL Supported by SQL Azure: http://msdn.microsoft.com/en-us/library/ee336250.aspx SQL Azure Learning Plan: http://blogs.msdn.com/b/buckwoody/archive/2010/12/13/windows-azure-learning-plan-sql-azure.aspx

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• TFS 2012 and MS SQL 2008r2

  - by Vadim911

  When I try to call TFS 2012 warehouse control web service (WarehouseControlService.asmx) I got following error: Exception Message: Could not load file or assembly 'Microsoft.AnalysisServices, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified. (type FileNotFoundException) Exception Stack Trace:    at Microsoft.TeamFoundation.Warehouse.WarehouseConfigurationService.RebuildOLAPDatabase(TeamFoundationRequestContext requestContext, String olapServerInstanceName, String databaseName, String warehouseServerInstanceName, String warehouseDatabaseName, Int32 translationLCID, Boolean checkAndUpdateJobs)    at Microsoft.TeamFoundation.Warehouse.WarehouseConfigurationService.RebuildOLAPDatabase(TeamFoundationRequestContext requestContext, String olapServerInstanceName, String databaseName, String warehouseServerInstanceName, String warehouseDatabaseName, Int32 translationLCID)    at Microsoft.TeamFoundation.Management.SnapIn.ApplicationTierNode.RebuildReporting(IntPtr hwnd, IRefreshable panel) Inner Exception Details: Exception Message: Could not load file or assembly 'Microsoft.AnalysisServices, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified. (type FileNotFoundException) Exception Stack Trace:    at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)    at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)    at System.Reflection.Assembly.Load(AssemblyName assemblyRef)    at Microsoft.TeamFoundation.Common.Internal.TfsAssemblyResolver.OnAssemblyResolve(Object sender, ResolveEventArgs args)    at System.AppDomain.OnAssemblyResolveEvent(RuntimeAssembly assembly, String assemblyFullName) It is strange because I have installed ms sql connectivity. Is it issue connected with the fact that I try to use tfs 2012 with ms sql 2012? Please advise how to resolve issue networked above.

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• SQL Server 2005 and SQL Server Express on the same machine?

  - by jason

  Can we have both version installed on the same computer?

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• T-SQL Improvements And Data Types in ms sql 2008

  - by Aamir Hasan

   Microsoft SQL Server 2008 is a new version released in the first half of 2008 introducing new properties and capabilities to SQL Server product family. All these new and enhanced capabilities can be defined as the classic words like secure, reliable, scalable and manageable. SQL Server 2008 is secure. It is reliable. SQL2008 is scalable and is more manageable when compared to previous releases. Now we will have a look at the features that are making MS SQL Server 2008 more secure, more reliable, more scalable, etc. in details.Microsoft SQL Server 2008 provides T-SQL enhancements that improve performance and reliability. Itzik discusses composable DML, the ability to declare and initialize variables in the same statement, compound assignment operators, and more reliable object dependency information. Table-Valued ParametersInserts into structures with 1-N cardinality problematicOne order -> N order line items"N" is variable and can be largeDon't want to force a new order for every 20 line itemsOne database round-trip / line item slows things downNo ARRAY data type in SQL ServerXML composition/decomposition used as an alternativeTable-valued parameters solve this problemTable-Valued ParametersSQL Server has table variablesDECLARE @t TABLE (id int);SQL Server 2008 adds strongly typed table variablesCREATE TYPE mytab AS TABLE (id int);DECLARE @t mytab;Parameters must use strongly typed table variables Table Variables are Input OnlyDeclare and initialize TABLE variable  DECLARE @t mytab;  INSERT @t VALUES (1), (2), (3);  EXEC myproc @t;Procedure must declare variable READONLY  CREATE PROCEDURE usetable (    @t mytab READONLY ...)  AS    INSERT INTO lineitems SELECT * FROM @t;    UPDATE @t SET... -- no!T-SQL Syntax EnhancementsSingle statement declare and initialize  DECLARE @iint = 4;Compound Assignment Operators  SET @i += 1;Row constructors  DECLARE @t TABLE (id int, name varchar(20));  INSERT INTO @t VALUES    (1, 'Fred'), (2, 'Jim'), (3, 'Sue');Grouping SetsGrouping Sets allow multiple GROUP BY clauses in a single SQL statementMultiple, arbitrary, sets of subtotalsSingle read pass for performanceNested subtotals provide ever better performanceGrouping Sets are an ANSI-standardCOMPUTE BY is deprecatedGROUPING SETS, ROLLUP, CUBESQL Server 2008 - ANSI-syntax ROLLUP and CUBEPre-2008 non-ANSI syntax is deprecatedWITH ROLLUP produces n+1 different groupings of datawhere n is the number of columns in GROUP BYWITH CUBE produces 2^n different groupingswhere n is the number of columns in GROUP BYGROUPING SETS provide a "halfway measure"Just the number of different groupings you needGrouping Sets are visible in query planGROUPING_ID and GROUPINGGrouping Sets can produce non-homogeneous setsGrouping set includes NULL values for group membersNeed to distinguish by grouping and NULL valuesGROUPING (column expression) returns 0 or 1Is this a group based on column expr. or NULL value?GROUPING_ID (a,b,c) is a bitmaskGROUPING_ID bits are set based on column expressions a, b, and cMERGE StatementMultiple set operations in a single SQL statementUses multiple sets as inputMERGE target USING source ON ...Operations can be INSERT, UPDATE, DELETEOperations based onWHEN MATCHEDWHEN NOT MATCHED [BY TARGET] WHEN NOT MATCHED [BY SOURCE]More on MERGEMERGE statement can reference a $action columnUsed when MERGE used with OUTPUT clauseMultiple WHEN clauses possible For MATCHED and NOT MATCHED BY SOURCEOnly one WHEN clause for NOT MATCHED BY TARGETMERGE can be used with any table sourceA MERGE statement causes triggers to be fired onceRows affected includes total rows affected by all clausesMERGE PerformanceMERGE statement is transactionalNo explicit transaction requiredOne Pass Through TablesAt most a full outer joinMatching rows = when matchedLeft-outer join rows = when not matched by targetRight-outer join rows = when not matched by sourceMERGE and DeterminismUPDATE using a JOIN is non-deterministicIf more than one row in source matches ON clause, either/any row can be used for the UPDATEMERGE is deterministicIf more than one row in source matches ON clause, its an errorKeeping Track of DependenciesNew dependency views replace sp_dependsViews are kept in sync as changes occursys.dm_sql_referenced_entitiesLists all named entities that an object referencesExample: which objects does this stored procedure use?sys.dm_sql_referencing_entities 

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• Unable to uninstall SQL Server express

  - by Joel Martinez

  When I try, I receive the following error message: A computer restart is required. You must restart this computer before installing SQL Server. Of course, I have restarted the computer :-) I'm not really sure how to proceed. The version that sql server reports when I query it is: SQL Server 10.0.1600.22 - RTM (Express Edition with Advanced ) Solved: As it turns out, I had to end up uninstalling logitech's quick cam pro software. Although the fix below did not directly resolve it, the value of that registry key led me to discovering the solution by querying for it online :-) thanks!!!

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• Installation of SQL Server 2008 r2 express - Service accounts

  - by Shimmy

  hello! I am in middle of installing SQL Server 2008 r2 express, where an existing instance has been installed long ago. I need to install a new instance. During the installation I reach a tab where I am supposed to enter accounts for "SQL Server Database Engine" and Browser. The browser is already selected, my question is about the 1st row. What account should I enter? I need to be able to perform SQL queries from SMSS and from my app, thru windows authentication.

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