Improper Use Of Tempdb?

Mar 21, 2008

I am working on a web application that takes in a file to save with a record in the database. I am reviewing options for storing the uploaded file temporarily until the user saves the record they are editing. The file may be too large to comfortably store in the session with the rest of the record, so we want to store it in the database. I am considering using tempdb to store the file until the user comes back to save, at which point I'd move the record from tempdb to the "real" table.
Will this solution give me problems?

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Correct/detect Improper Case

May 22, 2008

I have been through our database and we have a culprit who has been inputting all names in full capitals which I have always found particularly annoying. I want to convert them all to proper case for which I found the code below. However how can I detect the set where they have inproper case.

CREATE FUNCTION dbo.pCase
(
@strIn VARCHAR(255)
)
RETURNS VARCHAR(255)
AS
BEGIN
IF @strIn IS NULL
RETURN NULL

DECLARE
@strOut VARCHAR(255),
@i INT,
@Up BIT,
@c VARCHAR(2)

SELECT
@strOut = '',
@i = 0,
@Up = 1

WHILE @i <= DATALENGTH(@strIn)
BEGIN
SET @c = SUBSTRING(@strIn,@i,1)
IF @c IN (' ','-','''')
BEGIN
SET @strOut = @strOut + @c
SET @Up = 1
END
ELSE
BEGIN
IF @up = 1
SET @c = UPPER(@c)
ELSE
SET @c = LOWER(@c)

SET @strOut = @strOut + @c
SET @Up = 0
END
SET @i = @i + 1
END
RETURN @strOut
END
GO

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Tempdb Is Skipped. You Cannot Run A Query That Requires Tempdb

Jul 14, 2004

Has anyone seen the SQL Server error:

"tempdb is skipped. You cannot run a query that requires tempdb"?

We're running a .Net web application with a SQL Server 2000 backend, and we get the error intermittently. Restarting the SQL Server service seems to fix it, as it causes tempdb to be rebuilt, but this isn't a long term solution. Any direction or hints would be greatly appreciated. Thanks!
- Mike

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About TempDB

Jun 1, 2005

TempDB is one of the databases equipped with MSSQL Server by default.What is the purpose of it?Why do we use this temp database?

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Tempdb Help

Apr 9, 2002

Hi,

THis is sql server 6.5 question.
I have tempdb data device size default 2 MB, which has completely filled up. I am trying to expand data device to it.
I created new device tempdb_data_ext (250 MB) and tried to expand tempdb data device. But everytime I do it, it ends up adding space to tempdb log device. How can I expand tempdb data device?

It's extremely urgent.

Thanks

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TempDB

Apr 16, 2001

Hi,
How can I control the growth of tempdb in SQl server.It's growing like anything.
CAn I create some alerts or jobs and what those alerts/job are supposed to do?
All help appreciated.
Jai

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Tempdb

Jun 27, 2001

Hello!
This is error message I discovered in NT even viewer:
c:MSSQL7DATATEMPDB.MDF: Operating system error 112(There is not enough space on the disk.) encountered.

In SQL Server error log the errors are:
Error: 1101, Severity: 17, State: 10

Could not allocate new page for database 'TEMPDB'. There are no more pages available in filegroup DEFAULT. Space can be created by dropping objects, adding additional files, or allowing file growth..

Currently tempdb rezides on C drive and it's almost out of space.
What should I do?
Detach tempdb and then move to different drive?
What's the procedure?

Thanks

Lena

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TEMPDB

May 10, 2000

TEMPDB in one of our production servers does not clear up so every three to four weeks I have to restart NT. Nothing like this happens on any of the other three servers. Does anybody know where I should look at to correct the problem. I sure would appreciate it.
Thanks
Shashu

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Tempdb

Feb 2, 2001

I have never done this before and thought I would ask. Is it possible to detach the tempdb database, move it to another drive or partition, and then re-attach it? What would be the downside or side-affects to doing such a thing?

Thanks. JT

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SQL 7.0 TEMPDB

Jan 17, 2001

We want to shrink the size of our TEMPDB , Does anyone know how to without blowing it away and re creating it.

Also, our tempdb expands to occupy all available space on the server, the space is not released until the server is restarted.

Any ideas would be appreciated.

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Tempdb

Oct 18, 2000

Hi why I cannot backup the tempdb. Is this a normal or there is something that I am doing wrong.

Ali

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Need Help Tempdb

Apr 6, 2000

Hi

I get a message:

Error : 933, Severity: 22, State: 1
Logical page 258 of the log encountered while retrieving highest timestamp in database 'tempdb' is not the last page of the log and we are not currently recovering that database.

I use sqlserver -T4022 to start my SQL Server since it will not start with out it. When I start sqlserver without the option, it tells me that

Error : 615, Severity: 21, State: 1
Unable to find database table id = 2, name = 'tempdb'.

I just want my SQL Server back. Please help!

Thanks
Betty Lee

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Tempdb!!

Apr 20, 2000

I need to move tempdb to another drive,also increase the size.Largest database is 15GB.Can anyone suggest the size and also the exact commands to move.Do I need to backup the databases before I do this task?If SP1 is not installed,will it be o.k for me for this tempdb problem.If we have a larger tempdb like 4GB,will it effect anything?...Urgent!!

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Tempdb

Aug 29, 2000

The tempdb has grown to over 2 GB on our DB. There are no user tables or SP in it. Is there a way to clean up and are there any consequences to this?

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TempDB

Jan 13, 2000

I read an article on this site by Michael Hotek re "Basic SQL Server 6.5 Configuration Options". In the paragraph about TempDB he says that you should always avoid using Temp tables in stored procs. I use this feature a lot when trying to do "not in" type queries (I filter out a portion of a larger table and then use the "not in" on the temp table rather than the entire table.)
Is there a better way to run a Not in query. I have the table well indexed (i think) but it seems to do a full table scan if I use the entire table.

Any ideas???

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Tempdb Way To Big

Jan 22, 2003

Our Tempdb.mdf file is 11 gigs. I have tried several things to shrink this but with no luck. Does anybody have a suggestion on how I can free up that space. I have tried to re-start Sql but that didn't do anything. I thought that there was a bug, if the files got above 4 gig that sql wouldn't clear them, but I could be wrong

I thought I could detach it, and attach a new file, but makes me nervous without knowing if that�s correct.

Thanks for the help

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TempDB In RAM

Nov 3, 1999

Hi,

I moved my tempdb (2MB) to RAM and restarted the server. It did restart but when I tried to connect thru ISQL, it gave me an ERROR -

A connection could not be established to <server-name> - DB-Library. Unable to Connect.

What could be the possible reason.

To move tempdb to RAM, do i just have to change the values of the MEMORY and TEMPDB IN RAM parms and restart or do I have to do anything else.

Please help.

Thanks
Nishant

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TempDb In RAM

Mar 18, 1999

Hi

When should I put tempdb in RAM and when should I not ?

Thanks in advance

Vijay

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Tempdb In Ram Not "going Away"

Feb 24, 1999

I am trying to configure a 6.5 server to set the tempdb to run off disk. I reset the tempdb in ram = 0 in the configuration, and restarted the service, but it left it as running in ram, with 0 configured. I then rebooted the server, and it still left the tempdb in ram. Any ideas?

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TempDB

Dec 4, 2006

Hi All,

I am trying to get some information about tempdb database. I've tried BOL but I couldn't find a whole lot of info. I am trying to find out what size should tempdb be to not to cause problems. Also, I am trying to shrink tempdb by using shrink database option in EM, but it only shrinks the tempdb transaction log not the datafile, and I don't know why it is happening.

Thanks

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Tempdb In RAM

Aug 19, 1998

We are using Peoplesoft HRMS version 7.0 on NT Server 4.0 and SQL Server 6.5, service packs on both up-to-date.

The server is a HP LX Pro with 4 200 MHz 1MB cache processors with 2,560 MB of RAM and 18 9GB drives configured with different combinations of RAID 1, 1+0, and 5.

The database is 2.3GB in actual size with the specific size of 6GB for data and 2GB for log on separate RAIDs.

We would like to use tempdb in RAM to boost the speed of complex queries that use the tempdb for intermediate working tables.

We would like to know of any experience of running tempdb in RAM, issues to overcome, of how to setup.

There are articles and books not recommending using tempdb in RAM. Comments anyone?

Note: Have looked in SQL Server DBA Survival Guide, and SQL Server Unleashed, along with the normal MS Documentation, technet, online books, and knowledge base searches.

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Tempdb In RAM

Nov 1, 1998

System: Pentium II - Dual 450. 13 GIG RAID. 128 MB RAM.

Everything I've ever heard or seen says not to put tempDB in RAM, citing reasons of negligible benefit or even worse performance as it steals memory from SQL's cache memory.

My issue is I need to take anywhere from 500 to 3000 records (games played) in a batch every five minutes from a table, ordered by game id. There's no guarantee of sequential order to how the records are inserted, so I need to do an ORDER BY in my query. I also do a stored procedure for ranking that requires an ORDER BY.

The performance difference between the two is staggering. 1000 records with a 200 mb tempdb database (not in RAM) takes about 300 seconds. With a 16 MB tempdb database IN ram, it takes just under 127 seconds. Only problem? I'm constantly getting, after a few batches have run, "out of space in syslogs for tempdb ram messages. "

Is there a way to net such performance from tempdb without putting it in RAM, and if not, is there a way to explicity clear out tempdb. Thanks for any help.

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Tempdb

Mar 6, 2001

Hello All~

I have a problem with Tempdb database on SQL 6.5 server.....when i create a temporary table,
i block other users in other databases. Actually i run a stored procedure which creates a temporary table and then the procedure insets some values of a table from my test database. When the spored procedure is executed, users in other databases also get blocked and no new user will be allowd to log on to the server. When i check as to what the other users are executing, i find that they are also creting or droping a temp table.
So i will have to either kill my SP or let it finish and continue blocking other users.

As of now, i am not able to find a reason for that and i try to run the Stored procedure in offpeak hrs.

I have not played around much with Temp tables in SQL 6.5. Pl do suggest me as to what to do....

Some details you would be interested on :

Server - SQL Server 6.5
Front End - Great Plains
Size of Tempdb - Data Space Available( It says shared with data)
database_name database_size unallocated space
------------------------------ ------------------ ------------------
tempdb 1502.00 MB -6301.82 MB

reserved data index_size unused
------------------ ------------------ ------------------ ------------------
7991108 KB 7996222 KB 72 KB -5186 KB

Hope this information helps.

Thanks in Advance...

Siv

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Another Tempdb ?

Mar 8, 2001

I have a dumb ?
When I go in to expand the tempdb to at least 25mb req. for the migration
It is actually expanding the Log size & the Db available size still says 1.76mb.

What am I doing wrong?

Thanx for your time
Rick C

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Tempdb

Jul 12, 2001

Hi, our tempdb log keeps filling up and suggests we back it up. Can we double the size of the log file if we are using simple recovery?

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About Tempdb

Jan 6, 2004

Hi

Being new to SQL server I would like some information regarding the tempdb database.

I user SQL Server 2000.

At present I appear to be backing up my tempdb but it has been failing since way back. It gives me this error when trying to bakup the database:

Executed as user: NT AUTHORITYSYSTEM. Backup and restore operations are not allowed on database tempdb. [SQLSTATE 42000] (Error 3147) BACKUP DATABASE is terminating abnormally. [SQLSTATE 42000] (Error 3013). The step failed.

Can someone give me a basic grounding as to what the tempdb is used for and should I back it up or not?

Thanks in advance

Neil.

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Tempdb

May 14, 2004

Hello,
My db tempdb is very big (55 Go), how can i reduce it or erase it and why it's so big ?

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Tempdb

Jun 16, 2008

Hi All
if temdb grows and use all the disk space and then after log backup or other clean up process its size got reduced but it is still holding the space it was grown upto. In this case what would be ideal to do restart server/services or is it possible to reduce the space alocated to tempdb through properties.

any help will be appreciated.

Thanks

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Tempdb

Dec 4, 2006

is it ok to move the this from the c drive to another drive?

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TempDb

Mar 10, 2007

Hi Experts,

Whats is the best Disk raid for TempDB? Will the performance of the database will go slow if I move it to a slower disk like RAID 5 with 5000 RPM?

Thanks in Advance
Sachin

Don't sit back because of failure. It will come back to check if you still available. -- Binu

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TempDB

Jan 14, 2008

For a variety of reasons, the C drive on our Production Server is low on disk space. When we ordered the server it came installed with SQL Server 2005 and they defaulted the System databases to the C drive. All our client dbs are on the F drive. The tempdb database gets fairly large every day and consumes a large portion of what is left of the C drive. Every evening, after work hours, I have to stop SQL Server, delete the tempdb.mdf and ldf files and restart. Is there a way to move the default location of the tempdb files to the F drive? I do not want to repartition the hard drive or uninstall and reinstall SQL Server.

Thanks in advance,

Dave

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Help With Tempdb

Jan 22, 2008

So i've been delegated to be a SQL Server DBA now (which I am perfectly content with), but im running into some issues and I am not sure how to proceed.

To make a long story short:

-installed a new server with SQL Server 2005 SP1. Has two databases on it.
-(2) arrays: 1st array is RAID 1 with some of the database and t-logs on it (I know..working to fix): 2nd array I just moved the tempdb.mdf file and tempdb.ldf files over this morning.

I was getting horrible I/O performance (to be expected) which prompted me to put in some more drives and move the tempdb files. This helped a bit, but now I am noticing some very funky things.

Over the last hour, i have seen my tempdb.mdf file grow from 10mb to almost 90gigs. I've been watching the performance on this machine, and the array with the tempdb is really seeing a lot of writes to it.

I am very very new to SQL server. Does anyone have some suggestions on profiiling and tracing I can do to see what is going on? Something in the Query analyzer?

I really appreciate it very much. This is new territory for me.

Thanks.

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Tempdb In RAM?

Jul 20, 2005

Is it a good thing to do? what are the cons? Are there any risks? (this isan ISP database running 24 hrs) I have sql 6.5 on Win NT with 256 MB Ram (64MB reserved for SQL Server). tempdb size is 10 MB. Currently i'mexperiencing slow response for large queries and sometimes users haveproblems logging on the internet (authentication stops).thx

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