how does one make tempdb smaller, when i try to reduce the allocated size it wont let me? it fell over during a process i have tried to srhink the database in enterprise and tried dbcc shrinkdatabase in analyser but to no avail!
View 1 RepliesI have a large database currently using up 5GB of space --
I deleted some records of a table and the free space is increased.
So the question is, if I delete some of the data from this table
will the database size decrease? Is there anything else I can do to
reduce the size of the database?
Thank you so very much for any help with this!
Regards Mr. Mumin
Thanks All,
hi,If we consider the following scenerio:a school with 500 students.On average student takes [x] courses per year, and [y] tests per course.table of grades:+------------+-----------+---------+-------+| student_id | course_id | term_id | grade |+------------+-----------+---------+-------+| | | | |+------------+-----------+---------+-------+| | | | |+------------+-----------+---------+-------+as average, x = 20, y =6 thennumber of records = 500 * 20 * 6 = 120,000 record per year.is this design correct considering number of records generated per year?Is it important to reduce the "number of records" or no?thank you.
View 1 Replies View RelatedI have a table in my database and the table has almost 45 columns and the rowsize is 10468 bytes.in that most of the colums have varchar datatypes and and i think coz of poor knowledge of the data most of the columns with varchar data were given more column length. Now i want to decrease the size of those columns and to see the row size would be around 8k Bytes.If i do this now, does it affect the table performance much....Infact can i do this as there is lot of data (almost 2 million rows) in the table.If it is possible is there anything to be taken care before changing the column lenghts.
Thanks.
Hey,
In a ASP application, which used Access and is now being migrated to SQL 2005, I have a medium-sized query with many inner joins. I optimized the tables, with indexes, etc, and if I run the query on the SSMS it returns me like 55 lines in less then a second. On the other hand, when the ASP page passes the query to the SQL 2005, it takes 10 sec. to get the data. Using the Profiler I found that the sp_fetch is being executed a lot of times. It looks like the query is decomposed in smaller pieces and the rows as selected one by one. I'm using OleDb.
How to make the ADO (the culprit in my opinion) to execute that query at once?
Thank you.
Hi,
We are processing 60,00, 000 rows(2 GB file) available in a flat file and loading them in to a database tables using OLEDB Destination components. In the data pipeline of an SSIS package we have 1 flat file source reader, 7 look up components(full cache mode), 1 multicast component and 2 OLE DB destinations with fast load option.
We have observed that first 10,00, 000 rows are processed and loaded in to target tables in just 4 minutes time. The second set of 10,00, 000 rows are processed in 15 minutes time. After this for processing each 1,00,000 rows SSIS is taking approximately 8 - 10 minutes time. We are not able to identify the reasons for the unexpected behaviour of SSIS.
We thought that as the input file size is 2 GB SSIS is not able to manage and slowing down over time of execution. We did split the big input file in to 60 small 37 MB (approx) size files. Then we modified the package by adding For-Each loop task to process all the 60 small files and load them in to database server sequentially. Even in this approach also we have identified data loading has slowed down drastically after processing 13 files.
In order to verify is there any problem with reading source file or transformation, we have replaced OLEDB destinations component with Flat File destinations. With Flat file destination the time taken for processing rows is very constant. For every 8 minutes package is able to process 10,00,000 rows and write them in to the destination files. So, there is no problem with the with either Look up components or flat file source reader.
We are sure that target database server is in same state/condition from the starting to the end of package execution. The client box in which we are running the package is having 1 GB RAM. During package execution time the CPU usage is at 30 % and PF usage is 580 MB. SP1 is also installed on both Client and Server.
Does any one have clue what is causing slow down of data load over the time of package execution?
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
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?
View 4 Replies View RelatedHi,
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
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
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
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
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
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.
Hi why I cannot backup the tempdb. Is this a normal or there is something that I am doing wrong.
Ali
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
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!!
View 2 Replies View RelatedThe 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?
View 4 Replies View RelatedI 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???
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
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
Hi
When should I put tempdb in RAM and when should I not ?
Thanks in advance
Vijay
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?
View 2 Replies View RelatedHi 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
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.
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.
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
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
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?
View 1 Replies View RelatedHi
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.
Hello,
My db tempdb is very big (55 Go), how can i reduce it or erase it and why it's so big ?
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
is it ok to move the this from the c drive to another drive?
View 16 Replies View Related