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  • How to replicate windows server 2008?

    - by Sem Dendoncker
    Hello, We have 2 servers let's call them server A and server B. Server B is never used unless something goes wrong with server A. I need a system that can replicate server A to server B but this doesn't have to be continues. This only has to be done once every day (let's say at 1 am or so). Also, it's not necessary to automatically take over the server, this can be done manually. On this server IIS is running and sql 2008 so all webapplications and databases must be synced/replicated. What tools can I use? I hope someone can help me with this. Cheers, Sem

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  • Windows 2003 IIS FTP Server Migration w/ User Accounts

    - by Brad
    I'm trying to figure out the best way to migrate an FTP server from old hardware to new hardware. The server is on a domain, but not all the users setup on the server (to use FTP) are domain accounts, some are local to the server. For example, I have users both ways: domain\username machinename\username The new machine name will be different. So I need to copy all the files with permissions in tact from the old server to the new server. Then I need to convert all the user accounts from the old server to the new server. Then I need to change the file permissions so that they are no longer oldserver\username but newserver\username. Can this be accomplished all with CALCS? Is there an easy way that perhaps I'm missing?

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  • LAMP stack security question - uploading files to server

    - by morpheous
    I am running Ubuntu 9.10 desktop on my home machine. I need to upload files from my local machine, to my web server, on a periodic basis. My server is running Ubuntu Server LTS. I want my server to be secure, and only run the LAMP stack and possibly, an email server. I do not (ideally) want to have FTP or anything that can allow (more) knowledgeable hackers to be able to hack into my server. Can anyone recommend how I may send files from my local machine to the server? This may seem an easy/trivial question, but I am relatively new to Linux - and I got my previous Windows server machine serious hacked in the past, hence the move to Linux, and thats why I am so security conscious.

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  • Multiple PXE server same subnet

    - by Termiux
    I've been struggling with this for some time. I have a few test machines that boot from the network, they receive the boot data from the DHCP server, this tells them who is the boot server where is the file they'll boot etc. However, I need to add a second PXE server in the same subnet (create another Vlan is not an option right now). I read somewhere that I may be able to send certain parameters to certain machines based on their MAC address (this way choosing what computers boot from what server) however I cannot find how to do this, anyone knows how? this will be my solution but I cannot find the answer. My DHCP is a windows server 2003 I have 2 servers running custom flavors of Linux server as TFTP servers. Some machines use data to boot from server 1, and the others must bu able to boot from server 2. Thx

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  • What editions of Windows Server 2008 support print server?

    - by Aequitarum Custos
    Client is creating a server that will be running our website and dual purposed to act as a print server. We're trying to determine if Server 2008 Web Edition supports being a print server, however the comparison chart I found here only mentions Internet Print Client. Unfortunately I work at a software company, so no one knows, and Microsoft's feature comparison isn't being incredibly helpful. If Web Edition does not support Print Server, what is the recommended edition for a Web and Print server machine?

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  • One Active Directory, Multiple Remote Desktop Services (Server 2012 solution)

    - by Trinitrotoluene
    What I am trying to do is quite complex, so I figured I'd throw it out to a wider audience to see if anyone can find a flaw. What I am trying to do (as an MSP/VAR) is design a solution that will give multiple companies a session based remote desktop (companies that need to be kept completely seperate), using only a handful of servers. This is how I imagine it at the moment: CORE SERVER - Server 2012 Datacentre (All below are HyperV servers) Server1: Cloud-DC01 (Active Directory Domain Services for mycloud.local) Server2: Cloud-EX01 (Exchange Server 2010 running multi tenant mode) Server3: Cloud-SG01 (Remote Desktop Gateway) CORE SERVER 2 - Server 2012 Datacentre (All below are HyperV servers) Server1: Cloud-DC02 (Active Directory Domain Services for mycloud.local) Server2: Cloud-TS01 (Remote Desktop Session Host for Company A) Server3: Cloud-TS02 (Remote Desktop Session Host for Company B) Server4: Cloud-TS03 (Remote Desktop Session Host for Company C) What I thought about doing was setting up each Organisation in their own OU (perhaps creating their OU structure based on the Excahnge 2010 tenant OU structure so the accounts are linked). Each company would get a Remote Desktop Session Host server that would also serve as a file server. This server would be seperated from the rest on its own range. The server Cloud-SG01 would have access to all these networks and route the traffic to the appropriate network when a client connects and authenticated so they are pushed onto the correct server (Based on session collections in 2012). I won't lie this is something I have come up with quite quickly so there may well be something gapingly obvious that I am missing. Any feedback would be appreciated.

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  • Media Sharing on Windows Server 2008 R2

    - by HCL
    I want a Server 2008R2 (x64) to act as DNLA-Server. I remember I tried this with a Server 2008 about two years ago and this was only possible with some ugly hacks. Is it on Server 2008R2 now possible to enable Windows MediaPlayer Media-Sharing by installing the desktop experience packet? Has someone already experience on this. Or is there another possibility to allow media sharing on a Server 2008R2 "the designated way"? I remember that on Server 2008 the way was to install the old MediaConnect-Pacakge. But I hesitate to install such a component on a server. Anciently I installed VirtualServer with Vista and enabled the media server there in, but this seems to me somewhat overkill for such a simple task.

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  • Troubleshoot IIS 6 and Intermittent SQL Server Connectivity Loss

    - by jpsnow
    I am not a System Administrator, but I am temporarily trying to fill that role. I have 2 Windows 2003 Servers. 1 server has my Microsoft SQL Database (SQL Server 2005) and the other is the web server with IIS6. Intermittently (once every month or 2) the web server loses connectivity to the database server for a period of roughly 10 minutes. It normally regains connectivity without intervention. The website is set up to send me an email when there is a problem connecting to the database. Within the email, I get the error code: [Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]SQL Server does not exist or access denied. I am able to access both servers during the outage. I can go to my SQL server and open up SQL server without any issues. I have looked in the EventViewer and do not see anything. The last time that I had this issue, I stopped IIS6 and started it. After doing this, the issue was resolved. This leads me to believe that it is an issue with IIS and not SQL server. How can I begin troubleshooting?

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  • Licensing SQL Server 2012 Reporting Services w/ SharePoint 2010

    - by Evan M.
    Here's my situation: I have 1 VM that is running SharePoint 2010 SP1. I have a different physical server that is running SQL Server 2008 R2 that hosts all the configuration and content database for SharePoint. Now, we want to start providing BI capabilities to our users with SharePoint and SQL Server. With it's new features, 2012 is the obvious way to go. To support this, I'm looking to build a new VM that will have SQL Server 2012 installed w/ Analysis services and SSIS, which will be the platform that gets our data from our Oracle databases, puts it in a warehouse hosted by the SQL 2012 instance, and is put into cubes. What's getting me about the platform is licensing for Reporting Services and PowerPivot. My plan was to install SSRS and PowerPivot on the current SharePoint server. But my understanding of the licensing means that instead of the new SQL server being licensed, I'd have to license both new server, and the SharePoint server. Conversely, I could install SharePoint onto the SQL server, and only have to get a second SP license, but then I'd have the added complexity of deploying a separated application server, and combines my data and application servers. Is my licensing understanding correct, or can I have SSRS and PowerPivot installed separately without incurring additional licensing costs?

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  • VMware + SQL Server - sqlserver.exe not using both CPU cores

    - by fistameeny
    Hi, I am working on a virtual machine that runs SQL Server Express (as part of Sage Line 50 Manufacturing). The details are as follows: Physical Server (host machine) - Intel Xeon Quad Core 2.1GHz - 4GB RAM - VMDK image stored on RAID-5 500GB SATA drives (7200RPM) - Running Ubuntu 10.04 Server 64 bit - VMware Server 2 Virtual Machine - Windows Small Business Server 2003 - Allocated 2 vCPU's and 2GB RAM - Using 100GB pre-allocated flat VMDK file The problem I have is that there is process that runs in SQL Server that is CPU intensive. On the old physical server that we migrated to the virtual machine from, this would utilise both CPU cores so the sqlserver.exe process would be running 100% on each of the CPU cores. On the virtual machine, it only seems to use one of the two CPU cores, meaning that the process is much slower to run. Question Is there a way to force SQL Server (sqlserver.exe process) to use both of the CPU cores, and distribute it's load between them? Is this a VMware setting that needs changing to allow processes to use both cores?

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  • terminal server 2003, changed location of user profile "Desktop" items

    - by Bamse
    have a terminal server 2003 that about 50users can use, users are saving documents on the desktop, today users complain that documents on the desktop is missing, no upgrades or changes has been done the error is that the server reverted to load items the folder name "Desktop" instaed of using the local language "Skrivbord" (swedish for desktop) So the files are still on the server located under the users swedish folder name, but server does not load it, server however does load files located under the English folder name how can the terminal server from one day to another just change from where it loads the user profile desktop files?

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  • Cloning a WebCenter Portal Managed Server

    - by Maiko Rocha
    I had to run some tests on a WebCenter Portal application deployed in a cluster. I've got a development VM with WebCenter PS4 (this also works on PS5) and I was trying to figure out how could I easily add a new managed server to my single-node domain, and make it a cluster. Creating the machine and cluster are a piece of cake, you can do it pretty quick through WLS Console. Now, you'd guess that using the clone option on WLS Console would do the magic of cloning an existing instance, right? Well, it does, but all you get is an "empty" managed server: with no target libraries.  It was a good surprise to find that WebCenter provides a way of cloning an existing WebCenter Portal managed server through a simple WLST command: cloneWebCenterManagedServer  This is a screenshot of my starting point. I want to clone WC_CustomPortal managed server: These are the steps to clone my WC_CustomPortal managed server: 1. In the command line, invoke WLST. It should be on <ORACLE_HOME_for_component>/common/bin/wlst.sh. In my case, it is ./product/Middleware/WebCenterPortal/common/bin/wlst.sh 2. Connect to the Admin Server:  connect ('<wls_admin_username>','<password>','t3://<server>:<port>') 3. Execute the following command: wls:/webcenter/serverConfig> cloneWebCenterManagedServer(baseManagedServer='WC_CustomPortal', newManagedServer='WC_CustomPortal2', newManagedServerPort=8893, verbose=1) I've turned on verbose output on purpose so I could see what the script was doing while executing. This is the output:  [...] Creating the Managed Server "WC_CustomPortal2" MBean type Server with name WC_CustomPortal2 has been created successfully. Targeting the library "oracle.bi.adf.model.slib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.bi.adf.view.slib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.bi.adf.webcenter.slib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.wsm.seedpolicies#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.jsp.next#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.dconfig-infra#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "orai18n-adf#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.adf.dconfigbeans#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.pwdgen#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.jrf.system.filter" to the Managed Server "WC_CustomPortal2" Targeting the library "adf.oracle.domain#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "adf.oracle.businesseditor#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.adf.management#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "adf.oracle.domain.webapp#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "jsf#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "jstl#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "UIX#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "ohw-rcf#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "ohw-uix#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.adf.desktopintegration.model#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.adf.desktopintegration#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.bi.jbips#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.bi.composer#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.skin#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.composer#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.framework.core#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.sdp.client#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.soa.workflow.wc#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.soa.worklist.webapp#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.ucm.ridc.app-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "p13n-app-lib-base#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "p13n-core-web-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "jaxrs-framework-web-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "jersey-web-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "wcps-util-app-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "wcps-services-client-web-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "content-app-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "content-web-lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.framework#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.framework.view#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.forum.dependency#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.jive.dependency#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.spaces.fwk#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the library "oracle.webcenter.activitygraph.lib#[email protected]" to the Managed Server "WC_CustomPortal2" Targeting the datasource "mds-CustomPortalDS" to the Managed Server "WC_CustomPortal2" Targeting the datasource "WebCenter-CustomPortalDS" to the Managed Server "WC_CustomPortal2" Targeting the datasource "Activities-CustomPortalDS" to the Managed Server "WC_CustomPortal2" Targeting the application "wsil-wls" to the Managed Server "WC_CustomPortal2" Targeting the application "DMS Application#11.1.1.1.0" to the Managed Server "WC_CustomPortal2" Targeting the application "ViewHandlerOverride_webapp1#V2.0" to the Managed Server "WC_CustomPortal2" Targeting the application "ViewHandlerOverride_application1#V2.0" to the Managed Server "WC_CustomPortal2" Targeting the startup class "JRF Startup Class" to the Managed Server "WC_CustomPortal2" Targeting the startup class "JPS Startup Class" to the Managed Server "WC_CustomPortal2" Targeting the startup class "ODL-Startup" to the Managed Server "WC_CustomPortal2" Targeting the startup class "Audit Loader Startup Class" to the Managed Server "WC_CustomPortal2" Targeting the startup class "AWT Application Context Startup Class" to the Managed Server "WC_CustomPortal2" Targeting the startup class "JMX Framework Startup Class" to the Managed Server "WC_CustomPortal2" Targeting the startup class "Web Services Startup Class" to the Managed Server "WC_CustomPortal2" Targeting the startup class "JOC-Startup" to the Managed Server "WC_CustomPortal2" Targeting the startup class "DMS-Startup" to the Managed Server "WC_CustomPortal2" Targeting the shutdown class "JOC-Shutdown" to the Managed Server "WC_CustomPortal2" Targeting the shutdown class "DMSShutdown" to the Managed Server "WC_CustomPortal2" Validating changes ... Validated the changes successfully [...] And this is the newly created WC_CustomPortal2 managed server showing up on Weblogic console:  Here is the full reference to WebCenter Portal Custom WLST Commands. Special thanks to Todd Vender for pointing this one out! :-)

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  • Schema objects not visible in SQL Server Management Studio 2008

    - by Germ
    I'm experiencing a weird problem with a SQL login. When I connect to the server in Microsoft SQL Server Management Studio (2008) using this account, I cannot see any of the tables, stored procedures etc. that this account should have access to on a particular database. When I connect to the same server within Visual Studio (2008) with the same account everything is there. When I connect with the same account on a Virtual Machine everything is there. I've also had a co-worker connect to the server using the same login and he's able to view everything as well. I use Microsoft SQL Server Management Studio all day connecting to different servers and databases and I've never experienced this problem. Does anyone have any suggestions on how I can diagnose this problem? I've checked to make sure I don't have any Table filters etc. There's several database on this server and I'm able to see the correct tables that this account has access to in the other databases just fine. Running this query lists the tables I'm expecting to see. SELECT * FROM INFORMATION_SCHEMA.TABLES

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  • SQL SERVER – How to See Active SQL Server Connections For Database

    - by Pinal Dave
    Another question received via email - “How do I I know which user is connected to my database with how many connection?” Here is the script which will give us answer to the question. SELECT DB_NAME(dbid) AS DBName, COUNT(dbid) AS NumberOfConnections, loginame FROM    sys.sysprocesses GROUP BY dbid, loginame ORDER BY DB_NAME(dbid) Here is the resultset: Reference: Pinal Dave (http://blog.SQLAuthority.com)Filed under: PostADay, SQL, SQL Authority, SQL DMV, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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  • Two Virtualization Webinars This Week

    - by chris.kawalek(at)oracle.com
    If you're interested in virtualization, be sure to catch our two free webinars this week. You'll hear directly from Oracle technologists and can ask questions in a live Q&A. Deploying Oracle VM Templates for Oracle E-Business Suite and Oracle PeopleSoft Enterprise Applications Tuesday, Feb 15, 2011 9AM Pacific Time Register Now Is your company trying to manage costs; meet or beat service level agreements and get employees up and running quickly on business-critical applications like Oracle E-Business Suite and Oracle PeopleSoft Enterprise Applications? The fastest way to get the benefits of these applications deployed in your organization is with Oracle VM Templates. Cut application deployment time from weeks to just hours or days. Attend this session for the technical details of how your IT department can deliver rapid software deployment and eliminate installation and configuration costs by providing pre-installed and pre-configured software images. Increasing Desktop Security for the Public Sector with Oracle Desktop Virtualization Thursday, Feb 17, 2011 9AM Pacific Time Register Now Security of data as it moves across desktop devices is a concern for all industries. But organizations such as law enforcement, local, state, and federal government and others have higher security ne! eds than most. A virtual desktop model, where no data is ever stored on the local device, is an ideal architecture for these organizations to deploy. Oracle's comprehensive portfolio of desktop virtualization solutions, from thin client devices, to sever side management and desktop hosting software, provide a complete solution for this ever-increasing problem.

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  • An XEvent a Day (14 of 31) – A Closer Look at Predicates

    - by Jonathan Kehayias
    When working with SQL Trace, one of my biggest frustrations has been the limitations that exist in filtering.  Using sp_trace_setfilter to establish the filter criteria is a non-trivial task, and it falls short of being able to deliver complex filtering that is sometimes needed to simplify analysis.  Filtering of trace data was performed globally and applied to the trace affecting all of the events being collected.  Extended Events introduces a much better system of filtering using...(read more)

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  • An XEvent a Day (8 of 31) – Targets Week – synchronous_event_counter

    - by Jonathan Kehayias
    Yesterday’s post, Targets Week - Bucketizers , looked at the bucketizer Targets in Extended Events and how they can be used to simplify analysis and perform more targeted analysis based on their output.  Today’s post will be fairly short, by comparison to the previous posts, while we look at the synchronous_event_counter target, which can be used to test the impact of an Event Session without actually incurring the cost of Event collection. What is the synchronous_event_counter? The synchronous_event_count...(read more)

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  • An XEvent a Day (7 of 31) – Targets Week – bucketizers

    - by Jonathan Kehayias
    Yesterday’s post, Targets Week - asynchronous_file_target , looked at the asynchronous_file_target Target in Extended Events and how it outputs the raw Event data in an XML document. Continuing with Targets week today, we’ll look at the bucketizer targets in Extended Events which can be used to group Events based on the Event data that is being returned. What is the bucketizer? The bucketizer performs grouping of Events as they are processed by the target into buckets based on the Event data and...(read more)

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  • An XEvent a Day (9 of 31) – Targets Week – pair_matching

    - by Jonathan Kehayias
    Yesterday’s post, Targets Week – synchronous_event_counter , looked at the counter Target in Extended Events and how it could be used to determine the number of Events a Event Session will generate without actually incurring the cost to collect and store the Events.  Today’s post is coming late, I know, but sometimes that’s just how the ball rolls.  My original planned demo’s for today’s post turned out to only work based on a fluke, though they were very consistent at working as expected,...(read more)

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  • linked server issue in SQL Server

    - by George2
    Hello everyone, I am using SQL Server 2008 with linked server feature. I noticed there are a lot of providers for linked server which could be found from SSMS, like SQLNCLI10, OLE DB, etc. How to know which provider a specific linked server instance is using? thanks in advance, George

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  • SQLUniversity Professional Development Week: Learning To Fly

    - by andyleonard
    Introduction Clem and Jim Bob were out hunting the other day in the woods south of Farmville. As they crossed a ridge, they came upon a big ol' Momma Bear and her cub. The larger bear immediately started towards them. Jim Bob took off running as fast as he could. He stopped when he realized Clem wasn't with him. And when he saw Clem reaching into his pack, Jim Bob was incredulous: "Hurry Clem! That bar's comin' fast! You need to out run 'er!" Clem kicked off his boots and pulled running shoes out...(read more)

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  • SQL SERVER – Introduction to FIRST _VALUE and LAST_VALUE – Analytic Functions Introduced in SQL Server 2012

    - by pinaldave
    SQL Server 2012 introduces new analytical functions FIRST_VALUE() and LAST_VALUE(). This function returns first and last value from the list. It will be very difficult to explain this in words so I’d like to attempt to explain its function through a brief example. Instead of creating a new table, I will be using the AdventureWorks sample database as most developers use that for experiment purposes. Now let’s have fun following query: USE AdventureWorks GO SELECT s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty, FIRST_VALUE(SalesOrderDetailID) OVER (ORDER BY SalesOrderDetailID) FstValue, LAST_VALUE(SalesOrderDetailID) OVER (ORDER BY SalesOrderDetailID) LstValue FROM Sales.SalesOrderDetail s WHERE SalesOrderID IN (43670, 43669, 43667, 43663) ORDER BY s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty GO The above query will give us the following result: What’s the most interesting thing here is that as we go from row 1 to row 10, the value of the FIRST_VALUE() remains the same but the value of the LAST_VALUE is increasing. The reason behind this is that as we progress in every line – considering that line and all the other lines before it, the last value will be of the row where we are currently looking at. To fully understand this statement, see the following figure: This may be useful in some cases; but not always. However, when we use the same thing with PARTITION BY, the same query starts showing the result which can be easily used in analytical algorithms and needs. Let us have fun through the following query: Let us fun following query. USE AdventureWorks GO SELECT s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty, FIRST_VALUE(SalesOrderDetailID) OVER (PARTITION BY SalesOrderID ORDER BY SalesOrderDetailID) FstValue, LAST_VALUE(SalesOrderDetailID) OVER (PARTITION BY SalesOrderID ORDER BY SalesOrderDetailID) LstValue FROM Sales.SalesOrderDetail s WHERE SalesOrderID IN (43670, 43669, 43667, 43663) ORDER BY s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty GO The above query will give us the following result: Let us understand how PARTITION BY windows the resultset. I have used PARTITION BY SalesOrderID in my query. This will create small windows of the resultset from the original resultset and will follow the logic or FIRST_VALUE and LAST_VALUE in this resultset. Well, this is just an introduction to these functions. In the future blog posts we will go deeper to discuss the usage of these two functions. By the way, these functions can be applied over VARCHAR fields as well and are not limited to the numeric field only. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Function, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • SQL SERVER – Saturday Fun Puzzle with SQL Server DATETIME2 and CAST

    - by pinaldave
    Note: I have used SQL Server 2012 for this small fun experiment. Here is what we are going to do. We will run the script one at time instead of running them all together and try to guess the answer. I am confident that many will get it correct but if you do not get correct, you learn something new. Let us create database and sample table. CREATE DATABASE DB2012 GO USE DB2012 GO CREATE TABLE TableDT (DT1 VARCHAR(100), DT2 DATETIME2, DT1C AS DT1, DT2C AS DT2); INSERT INTO TableDT (DT1, DT2) SELECT GETDATE(), GETDATE() GO There are four columns in the table. The first column DT1 is regular VARCHAR and second DT2 is DATETIME2. Both of the column are been populated with the same data as I have used the function GETDATE(). Now let us do the SELECT statement and get the result from both the columns. Before running the query please guess the answer and write it down on the paper or notepad. Question 1: Guess the resultset SELECT DT1, DT2 FROM TableDT GO Now once again run the select statement on the same table but this time retrieve the computed columns only. Once again I suggest you write down the result on the notepad. Question 2: Guess the resultset SELECT DT1C, DT2C FROM TableDT GO Now here is the best part. Let us use the CAST function over the computed columns. Here I do want you to stop and guess the answer for sure. If you have not done it so far, stop do it, believe me you will like it. Question 3: Guess the resultset SELECT CAST(DT1C AS DATETIME2) CDT1C, CAST(DT2C AS DATETIME2) CDT1C FROM TableDT GO Now let us inspect all the answers together and see how many of you got it correct. Answer 1: Answer 2: Answer 3:  If you have not tried to run the script so far, you can execute all the three of the above script together over here and see the result together. SELECT CAST(DT1C AS DATETIME2) CDT1C, CAST(DT2C AS DATETIME2) CDT1C FROM TableDT GO Here is the Saturday Fun question to you – why do we get same result from both of the expressions in Question 3, where as in question 2 both the expression have different answer. I will publish the valid answer with explanation in future blog posts. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL DateTime, SQL Puzzle, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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