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• Do I need to recreate statistics if I had to drop them to add a foreign key

  - by Adam J.R. Erickson

  I have a database which had all it's foreign-key relationships dropped at some unknown time in the past (don't ask). I have an old copy of the database which isn't good to restore from, but the schema has the relationships. I'm working from that to create a script to restore the keys. In updating the tables, I've had to drop statistics from several tables. Do I need to manually recreate those, or can I just run the statistics update procedure when all the tables are updated?

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• When I need to create a schedule for Snapshot Agent for push transactional replication?

  - by THEn

  I am working with transactional database replication for push subscriber. My database structure will not be changed soon. Do I have to use "Schedule the Snapshot Agent"? What is the main reason to enable "Schedule the Snapshot Agent" option in snapshot agent in MSSQL Server 2005?

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• Rules to choose hardware for OLTP systems (sql server)

  - by Roman Pokrovskij

  Ok. We know database size, number of concurrent users, number of transactions per minute; should choose number of processors, RAID, RAM, mirroring and clustering. There are no exact rule.. but may be there are no rules at all? In my practice in every case I have "legacy" system, and after some inspections and interview I can form an opinion how hardware and design can be improved. But every time when I meet "absolutely" new system (I guess there are no new systems, but sometimes are such tasks) I can't say anything trustful. So I'm interesting how people deal with such tasks? They map task on theirs experience or have some base formulas?

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• Merely chainloading an Acer Recovery Partition deleted all data

  - by WindowsEscapist

  I was starting a backup of Acer's factory restore partition located inside of an extended partition to determine whether or not it still worked. I clicked "take no action" once I saw that it had, in fact, successfully started up. However, when I rebooted, I got an "error: no such partition" and was dropped to a GRUB recovery prompt. Upon further investigation, I discovered that all partitions inside the extended partition were gone except for the recovery partition! What happened? How can I fix this? testdisk doesn't find the deleted partitions!

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• SQL Server backup and restore process

  - by Nai

  Just wondering what backup processes you guys have. I am currently operating a weekly full database backup with daily differential backups. My understanding is that with such a set up, the difference between Full recovery mode and Simple recovery mode is that with Full recovery mode, I will be able to use the transaction logs to rollback my DB to a specific point in time having applied the latest differential backup. Assuming that in my scenario, the last differential backup serves as my last and ultimate 'save point', I don't see a need to rollback my DB even further back using the logs. This brings me to my question: Is there any additional benefits to be had using a Full recovery mode for my current backup process?

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• Migrating Linux user data to Windows profiles automatically

  - by scott ryan

  I have what seems to be an incredibly simple problem with a very simple solution but I'm having some trouble connecting dots. I have an aging server running Ubuntu Server which hosts roaming profiles. I am switching to a Windows Server 2012 DS shortly. Users used to be named firstinitial.lastname and we are switching to firstname.lastname. I need to transfer things like favorites, documents, etc. from the roaming Linux profile to the user's local Windows profile. So, the way I think it'd work is by using a login script. I think I'd use a script to mount the Linux server's /home for each user, then do copy to various paths (documents, pictures, etc.). But, how do I automate this for each user that logs in? I'm working with a nonprofit, so doing this by hand would probably be out of their budget. I'm open to suggestions, though. What I want is basically Windows Easy Migration, but I'm fairly certain that won't work under Wine... (Kidding, I promise). Thanks!

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• Is it possible to open a sqlite database from within microsoft sql management studio?

  - by Brian T Hannan

  Is there a way to open a .db file (sqlite database file) from within microsoft sql management studio? Right now we have a process that will grab the data from a microsoft sql server database and put it into a sqlite database file that will be used by an application later on. Is there a way to open the sqlite database file so that it can be compared to the data inside the sql server database ... using only one sql query? Is there a plug-in for microsoft sql management studio? Or maybe there is another way to do this same task using only one query. Right now we have to write two scripts ... one for sql server database and one for sqlite database ... then take the output from each in the same format and put them each in their own OpenOffice spreadsheet file. Finally, we compare the two files to see if there are any differences. Perhaps there's a better way to do this. P.S. Alot of applications use sqlite internally: Well-Known Users Of SQLite

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• SQL Server 2008 R2 Replication log reader could not execute sp_replcmds

  - by user49352

  This log reader agent worked perfectly for several months until the user referenced in the error was removed from the domain. After that time the error 'The process could not execute 'sp_replcmds' on 'SERVER'' was received with more detail 'Could not obtain information about Windows NT group/user' that referenced said user. This user was referenced nowhere in the the log reader agent other than the Publication Access List from which it was subsequenctly removed. The agent would still not successfully start up. The simple problem here, I believe, is that the log reader agent was created under that user and that no longer exists in the domain. Is there an 'owner' somewhere that needs to be changed? Every other function on the database continues to execute successfully. Any other help or thought would be appreciated.

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• Ways to recover data from external hard drive

  - by Howard Benson

  I use an external hard disk for backup of my mac with time machine (OS 10.5.8). I have made something wrong and I have found important folders in the recycler bin. These folders come from external hd. They are backup folders (backups.backupdb) and others. I have tried to restore them draggin and dropping. Some of them came back in the external hd in a while. For the others it takes hours to "preparing to copy" and then it has said "there's no space to copy" on ext hd. It's strange. Files are now in the recycle bin (180gb), and the ext had should have lot of free space. But it isn't really so. Ext hd is not free of space even if these files are in the bin. I ask for advices. I'm not also able to use time machine now (and i have "lost" old backups) for the same reason. Ext hd says that it has not free space.. Thanks

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• Sql server 2005 sp3 problem with Ghost Cleanup

  - by Carlos Lone

  The Ghost Cleanup process is killing my server. I have tried everything and nothing seems to work: Tried to run dbcc checkdb (didn't get any errors) Tried rebuild indexes tried to restart services and even the server Please any help to show me how can I get rid of this mess... thanks!!!

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• Problem with SQL connection on virtualised machines

  - by Mike Selby

  We have just virtualised our web servers but are experiencing problems when trying to connect with the existing DB server. The error message that is being returned from the virtual machines is as follows: A connection was successfully established with the server, but then an error occurred during the login process. (provider: TCP Provider, error: 0 - The specified network name is no longer available.) Any help would be much appreciated - Many thanks in advance.

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• SQL Server plus small files

  - by user1467163

  I have a MSSQL server, 3 volumes, that runs some processes that seem to take way too long. One of these processes reads in a zip file, then writes to a database based on what's in the zip file.... for each record. I have 2 volumes in use and am creating the third- so I am trying to plan how to do this. OS has to remain on vol. 1. The TLogs should probably go on the new volume and the mdf's on the existing vol.2.. Do I put the file store on the volume with the MDF's so they don't interfere with the TLog writes, or with the TLogs so they don't interfere with the TLog flush to the MDFs? I know it's best to have more servers / volumes but I have to make do with whats on hand for now. I appreciate any suggestions.

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• Sql-server-2008 client Access license

  - by thushya

  Hi, case 1 : i have one user makes 10 connection from single computer, maximum number of connection at a given time = 10, what is the number CAL i need here ? case 2 : i have 10 users have access to only 1 computer, 10 user connect from single computer - maximum connection at any given time = 1, what is the number CAL i need here ? case 3 : i have 10 users using 10 computers, all 10 are making total of 5 connection maximum in any given time, what is the number of CAL i need here ? Thanks.

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• SQL 2005: Backup database but ignore FTI Catalog

  - by Binary Worrier

  Folks, Apologies for aksing what might be a very simple question, but can I backup a database and ignore the databases FTI catalog? These backups will be restored to a different server and the FTI Catalog isn't necessarry. Thanks BW

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• Database Snapshots of Mirrored databases affect performance of Principal database?

  - by yrushka

  I have 2 servers set in Mirroring High-safety. One is Principal and another in Mirror. Currently I have 2 snapshots of a Production database (100 GB size) created on Principal server (for no_lock purpose of massive select processes) and 2 snapshots on the mirror server for the same database for reporting purposes. I know snapshots reduce performance of source databases but I am not sure if snapshots from mirror server have any impact on principal server's performance. thanks,

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• Data recovery from corrupt Ubuntu partition/directory (question about a previous answer)

  - by JoshMaurice

  I have an Ubuntu installation that won't boot anymore. I asked my previous question about it here: http://superuser.com/questions/15916/ubuntu-chkdsk-equivalent Bolotov replied: As I see from your previous question you can boot Windows so you could use dskprobe from Windows XP Service Pack 2 Support Tools to make sure that fs type is correct ... but it's already correct fs type 7 is NTFS. Message "The type of the filesystem is RAW. CHKDSK is not available for RAW drives." means that windows can't determine fs type for some reason. As we see fs type is correct. To run Chkdsk on your Windows partition you can install Windows Recovery Console, boot in recovery console and check your disk. After checking the disk you will gain access to you c:\ubuntu\disks. I think you can mount your linux partition (which is in file) as usual loop-back device: mount -o loop [path to your linux-loopback-partition] But you should mount windows patrition first. So now I'd like to know: Within the recovery console I will be issuing the commands "chkdsk -r" and then "mount -o loop [path to windows partition]" and then "mount -o loop c:\ubuntu\disks", correct? I do have a ("corrupt and unreadable") c:\ubuntu\disks directory so that appears to be the correct path to the linux partition; do you know the path to the windows partition? would that be just "c:\"?

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• SQL Server 2008 Replication: Snap Shot Agent timing out on a specific table

  - by Nai

  Hi all, I am going through the process of setting up a transactional replication on my set up. However, I am unable to generate a full snap shot of my database. I keep getting stuck at the same particular point of the process. From snapshot agent: [46%] The process is running and is waiting for a response from the server Other sources have mentioned increasing the timeout period but I do not think this is the problem as this occurs at around the 10 min mark, way within the default value of 1800s. So, I removed that article/table from the snapshot, and lo and behold, it works. So I was looking at the Schema of the table and in my identity column, the NOT FOR REPLICATION was set to TRUE. All my other tables have it set to FALSE. Could this be the source of the error? Also, I tried changing this to false via the GUI but got received a timeout error. Is there a script that allows me to change this? Thanks all.

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• SQL Server 2005 to 2008 DB attach elp please!

  - by Brandon

  I have SQL Server 2005 Standard on my personal machine. I created a very big DB about 21 gb. I made a backup and transferred the .bak file via an ftp program to my dedicated server. I have SQL Server 2008 Enterprise Edition on my dedicated server. I tried restore the transferred .bak file but got an error. I posted the error on here and was told the database is corrupt. How? I don't know. The connection was not interrupted during the ftp transfer. The DB works on my own machine. So then I detached the db on my own machine and transferred the mdf and ldf file to my dedicated server through ftp again and again there were not interruptions. Now I try to attach the db and get this error: The header for file 'DB.mdf' is not a valid database file header. The FILE SIZE property is incorrect. (Microsoft SQL Server, Error: 5172) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.00.1442&EvtSrc=MSSQLServer&EvtID=5172&LinkId=20476 I already wasted 21 gb transferring the .bak file. Now I used another 21 to transfer mdf and additional ldf file. Please tell me there's a solution. The db can detach and attach fine on my machine in sql server 2005 but not SQL server 2008 on my server.

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• Slow Inserts SQL Server 2005

  - by Achilles

  I'm researching an issue with the following information: We had a logging table with about 90k records in it that had inserts taking several seconds(approximately 10 to 20s) in extreme cases. One of the columns of the table stores XML as the XML datatype. The XML isn't being parsed during the insert, just stored. We tried truncating the table assuming that the issue was related the number of records(althought 90k seemed "normal") and the inserts still are performing poorly. While I know there are other issues that can cloud the issue, what would be some "check this first" ideas that could help me debug this issue? Thanks for any suggestions and help in advance.

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• Weird TPS peaks on SQL 2005 replicated database.

  - by SuperCoolMoss

  When monitoring the Transactions/Sec using perfmon on one of my SQL2005 replicated databases - I'm seeing the TPS increase to 1000 and then immediately drop back down again - this happens every 5 seconds. I'm not sure what's causing this - is this something to do with replication? We also have asynchronous statistics set on this particular database. I've tried profiling when the users are not connected - but nothing is writing to the database. ADDED PICTURE AND BOUNTY

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• Will a SQL Server client alias survive a sysprep?

  - by shufler

  I want to sysprep a Windows Server 2008 R2 SP1 machine that has SQL Server 2008 R2 SP1 installed (for reference, SQL Server 2008 R2 has a new sysprep feature that allows the instance to be sysprepped). On the server is a SQL Server client alias that points to the default SQL Server database engine instance. For reference, the alias is called Alias-SQLServer and has been configured in both 32-bit and 64-bit cliconfig versions (that is, both registry keys exist) The alias points to the local instance as the image will be used to create development VMs and the installation script for the application that is being developed will use the SQL Server client alias in order to generalize the installation scripts. I can't seem to find information about whether the sysprep tool will update the SQL Server client alias's registry keys with the server's new name once it's unsealed. My guess is that it is not; how is sysprep to know that the server name the alias points to will be different for each image? Right? Perhaps if the alias points to localhost instead of the server name this will work?

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• MS Access ADP front end and SQL Server back end for field data collection?

  - by Brash Equilibrium

  I am an anthropologist. I am going to the field and will use a netbook to collect survey data. The survey forms will need to allow me to enter data into multiple tables, search tables, allow subforms, and be fast enough to not slow down my interview. I have considered storing the data in a SQL Server Express 2008 R2 server (there will be a lot of data) while using a Microsoft Access data project as a front end. To cut down the number of steps required to collect and store data, I'm considering using the netbook for both data storage and collection (after reading this article about SQL Server on a netbook). My questions are: (1) Is there a simpler solution that is also gratis (gratis because I already have a MS Access license from my workplace, and SQL Server Express is, obviously, free)? (2) Does my idea to store and collect data using the netbook make sense? Thank you.

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• The new SSIS in SQL2005/SQL2008 are oversized

  - by Ice

  I studied the new MERGE Statement and there is a nice example for importing a flatfile. INSERT <Table> SELECT * FROM OPENROWSET BULK <Import-Flat-File>, <Format-File>... seems to be a good replacment for such a simple job and avoids to build a SSIS-Package. EXEC XP_CMDSHELL bcp <Table or View> out <Flat-File> ... is almost simpler than building an SSIS, isn't it? (I know that the MERGE-Statement doesn't run on a SQL2005)

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• Recover deleted data

  - by atapimp24

  Hi, A user deleted his documents from his laptop somehow and has no backup available. How would one go on his way to recover these deleted files. I have zero experience on this issue. Are there any open source or freeware tools that I can use to attempt a recovery of these files. Thanks

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• SQL Server 2005 64bit on 16GB machine uses 3.6GB memory only

  - by ArjanP

  Maximum server memory is set to the maxvalue AWE is disabled (should not be needed in 64 bit anyway) Windows Server 2008 Enterprise SP2 It is a virtual server using VMWare If I look in Task Manager the sqlservr.exe process only uses about 3.6 GB of memory. Is that number not real? Shouldn't it attempt to use all available memory? If I run DBCC MEMORYSTATUS I get: VM Reserved 16670136 VM Committed 3640664 It looks like a memory limit I shouldn't be seeing in a 64 bit environment.. how can I get SQL2005 to use more memory?

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