I am working with a large database that has its tables stored on a secondary filegroup. I'm trying to shrink the size of the files but I can't seem to get the system to free up the unused space. I've tried shrinkdatabase and shrinkfile both with and without the truncateonly option. Has anyone else had this problem? Is there a workaround? Any help would be greatly appreciated.
Thank you.
Cathy
How can I determine how much unused space to remove from database files? I am setting up a maintenance plan and I am trying figure that out.
Also, is there a rule on how far to shrink TL?
Please help. Thanks.
Hello,
I have a table which resides on a diff.filegroup.
The space allocated is 7700MB.
Now ehen I use sp_spaceused 'table_name' to see how much space is left it's giving me data as
rows reserved data index Unused
at 1000hrs 629879 6777904 5068344 8 1709552
After an hour 637537 6780336 5070800 8 1709528
After 2hours 643883 6782560 5072904 0 1709656
After 2.5hrs 646887 6783584 5073920 0 KB 1709664 kb
after 3hrs 647239 6783712 5074056 0 KB 1709656 K
If you note rows are increasing,so is the reserved place and data but unused is also increasing.I think it should come down.
What behavior is this?How can I find out how much space is left in this table residing on diff.file group?
TIA
I wrote simple script to check space used by tables:
CREATE TABLE #SpaceUsed(
TableName NVARCHAR(128),
NoOfRows INT,
Reserved NVARCHAR(18),
Data NVARCHAR(18),
Index_Size NVARCHAR(18),
Unused NVARCHAR(18)
)
GO
sp_msforeachtable "INSERT INTO #SpaceUsed EXEC sp_spaceused '?'"
SELECT * FROM #SpaceUsed
SELECT
CAST(Sum(CAST(Replace(Reserved,' KB','') AS INT)) AS NVARCHAR) + ' KB' AS TotalReserved,
CAST(Sum(CAST(Replace(Data,' KB','') AS INT)) AS NVARCHAR) + ' KB' AS TotalData,
CAST(Sum(CAST(Replace(Index_Size,' KB','') AS INT)) AS NVARCHAR) + ' KB' AS TotalIndex_Size,
CAST(Sum(CAST(Replace(Unused,' KB','') AS INT)) AS NVARCHAR) + ' KB' AS TotalUnused
FROM #SpaceUsed
DROP TABLE #SpaceUsed
and one of results looks strange to me:
TableName NoOfRows Reserved Data Index_Size Unused
-------------------------------------------------------------------------------------------------------------------------------- ----------- ------------------ ------------------ ------------------ ------------------
T_TableXX 50081 38024 KB 37432 KB 640 KB -48 KB
Anyone know reason of such result (negative value of unused space)?
I was just reading a doc on SQL , that said that to free up the unused space from the DB , you should use the shrinkdatabase DBCC commnad. ....
I want to knw how to determine how much free unused space is there in a DB
Thanks,
On a production database, there is a 2GB database, when I runsp_spaceused it indicates a very high quanity of unused space. Thedatabase has been shrunk & free space sent to the OS. Why is thisvalue so high, what can I do to reclaim the space?database_name database_size unallocated space------------------------------------------------------------------------------DB_00001 2004.13 MB 49.64 MBreserved data index_size unused------------------ ------------------ --------------------------------1531248 KB 412720 KB 165168 KB 953360 KB
View 5 Replies View RelatedI'm trying to figure out how to reclaim unused space in a huge table (tbl) after setting one of the text columns to be the empty string. Other tables have foreign key columns associated with tbl.
After doing something like this,
update tbl set col = ''
the table doesn't automatically reclaim that space. If I do a direct insert into a new table like this,
insert into tbl2 (cola, colb, colc) select * from tbl
the new table is smaller as expected (about half the size in my case). Any ideas?
Rob
Hey guys,
I have a table which has 6 text columns (tblA).. I no longer require 1 of those text columns and want to reclaim the space that it is currently taking up..
Is the only way to BCP out all the data (except the 1 column i no longer require) drop the column and BCP the data back into the table?
currently stuck with an issue where I need to reclaim the unused table space in SQL server.
ISSUE: Due to database size issue we have moved all the images from database to filesystem and want to reclaim the unused space now....I have tried shrinking the database and rebuild the indexes but didn't see any difference in the table or database size.
Similarly I have identified many Non clustered indexes on big transactional tables(~ 4 million records) that where not used since GO live 1 year back, so I wanted to drop these indexes to cut down the performance and maintenance overhead , so my question is will dropping these indexes reduces the database size?
best method to my issue regarding unused space. SQL SERVER 2014 BI EDITTION..I have a table that showed 62% Data, 7% unallocated, and 29% unused space.I ran the ALTER TABLE <table name> REBUILD, which changed it to 32% data and 67% unused.What I do with this table monthly and what I believe is causing this unused space issue is this:Every 1st of the month I get a csv file that holds around 3.2 million rows/15 columns of data. About 3 gbs every time.It's 13 months of data. I remove the last 12 months from the current table and import the new 13 month data.I do this twice a month and have no choice because the data is constantly updated and why we get it twice a month.So I am deleting around 6 gbs of data a month as well as adding around 6 gbs of data a month.
I believe this is why I end up with so much unused space, but just found the REBUILD command, which worked but now a small hit on performance and have too much space in the current table. I have read several times that shrinking the file is no good, but what other way to get rid of the extra space in this table? Also, the table doesn't have any indexes or primary key because of duplicates.
OS: Windows Server 2008 R2 Standard
SQL Server: 2008 SP1 Standard
We have a database with about 500 GB of free disk space on data file and the database is being set to read only mode for the fore-see-able future. We would like to release this unused disk space. We know that we could shrink the data file and then work on re-indexing to remove fragmentation.we wanted to check if some other method like backup and restore of the database could free up unused disk space in the data file. if someone was able to release unused disk space on data file by implementing a backup and restore.
how to claim unused free space at table level. The database size is of 4.6TB, recently I deleted some data which is of almost 1.5TB but my unused space has grown upto 2.5TB leaving me short of space on my drives. How do I claim this usused on to OS Disk space?
View 12 Replies View RelatedI want to shrink the log file in SQL Server 2005 (SP2).
What is the bestway in 2005? Any enhancements in SQL Server 2005?
Thank you,
Smith
I just inherited a database nightmare - and I've got a few questions I hope you folks can help with.
I ran a shrinkdatabase command from the enterprise manager (I should have used DBCC I realize now), and then my session died. The process is still going - but this is a huge database, and I'd like to know how long it will run. Is there any way to translate physical io (or anything else) to % complete?
This is being run to open up space on a disk array that is completely full. However, since kicking that off, additional storage has mysteriously been made available. <sigh> I assume that killing the shrink wouldn't involve rollbacks - but might leave the database in an unpredictable state. Is this correct?
Any other recommendations to speed this along? And, yes, I've got all the users off the system.
Thanks in advance for you insights...
Bart
Does anyone have any idea how long DBCC SHRINKDATABASE takes to run? I have a 20GB database with 10.5 GB used. I know hardware is part of the equation, but I don't know the specifics of the machine this particular DB is on, other than it is an 8 cpu compaq.
View 1 Replies View RelatedHi:
Need to shrink a few large databases and has anyone had more success with using DBCC Shrinkfile compared to DBCC Shrinkdatabase?
Thanks,
When using the above comand on our database, I receive the error:
Transaction (Process ID 81) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Is that because we have users in the database as Im trying to shrink it ?
I re-ran the query and received the same messages.
thank you
I've been testing this in our test environment. Our database has grown to 18GB so I want to make it smaller.
I used
DBCC SHRINKDATABASE (dbname, TRUNCATEONLY)
because i want to free up space that the file takes up on the server. Am I misunderstanding this? Should I not expect my .mdf to shrink?
Thanks.
Hi all, after using "DBCC SHRINKDATABASE (MyDB, TRUNCATEONLY )" command my log file stoped growing. It still remains 1024KB after 4-5 days of activity. What might be the problem?
View 1 Replies View RelatedHi,
should i use the SHRINK DATABASE maintenance plan once a month on all USERS DB?
if so what parameters should i put this the "Shrink Database when i grows beyond XXX MB" and the "Amount of free space to remain after shrink"
THX
Hi,
I have strange problem:
1) When I run "DBCC SHRINKDATABASE" (from my application) on computer with SQL Server 2000, it works fine.
2) When I run "DBCC SHRINKDATABASE" (from my application) on computer with MSDE that is connected the network with other computer with SQL Server 2000, it works fine.
3) When I run "DBCC SHRINKDATABASE" (from my application) on computer with MSDE that isn't connected the network, it stops response. I have wait for 15 minuts but it still doesn't work, neither the database is clear before. Why?
4) Also when I run "DBCC SHRINKDATABASE" (from my application) on computer with MSDE that is connected the network without other computer with SQL Server 2000, it stops response. I have wait for 15 minuts but it still doesn't work, neither the database is clear before. Why?
May be the "DBCC SHRINKDATABASE" need some DLLs that installed on SQL Server 2000 only and doesn't deliver with MSDE? May be this is SQL-DMO or/and SQL-NS?
My appliation created by C# in VS.NET 2003. I am using OLEDB.
Thank's
Alexei
Hi there,
How can I see the progress of DBCC SHRINKDATABASE on SQL Server 2000?
Thanks in advance.
Regards,
MKarumuru
Has anyone used the
"DBCC SHRINKDATABASE"
in a VB.NET project to shrink a DB.
If YES,
Please, if you dont mind, paste the code in this forum.
Tnx
Is there anyway to tell how long this will run for -- or how far it has got? I have a large database that has just had most of the data removed. The command has been running for 8 hours and I have just stopped it to let something else run quickly. Any way of telling how much longer it will take?
View 7 Replies View Relatedwhat is the difference in shrinkdatabase between sql 2000 and sql 2005. i am just doing a plain shrink, no reorg. it runs very fast in 2000 and runs forever in 2005.
View 1 Replies View RelatedHi all,
2 weeks ago I deleted about 200GB of data from a 300GB+ database. It's a custom DB we want to use to test few things. We wanted a smaller size DB for our testing and since we didn't have any we grabbed a production backup, removed sensitive data and ran a large archiving script on it... Anyway so far so good but our data file was still the same size as before.
So we started a shrinkdatabase... it has been running for 2 weeks now! After about 1 week I interrupted the shrinkdatabase process and ran a
dbcc shrinkdatabase('DB', truncateonly)
just to see if the data file will get reduced a bit or not. It did get reduced by about 20GB. I assume that
dbcc shrinkdatabase('DB', 0)
has free up enough pages at the end of the data file so a truncateonly was able to free up some space... Anyway after this we started the
dbcc shrinkdatabase('DB', truncateonly)
again... still running...
The database was never shrank before and every index is highly fragmented... Is that why it's taking so long? Am I actually going to have to wait for another few weeks before that thing finishes??
Anyone has experience running shrink on large DBs?
thanks!
Hi everyone:
I have a database that appears like it's much bigger than it should be. Looking at its properties in Enterprise Manager, it's 13GB big, but it says 7GB is available in free space. It's like it's grown, data was deleted, and it was never shrunk back down.
So I'm considering running a DBCC SHRINKDATABASE but am worried about the ramifications. Here are my concerns:
- Is the data in the database in any danger? Is the SHRINKDATABASE function safe?
- Can SHRINKDATABASE be run with the DB still in use? I'll run it after hours, but want to know if I need to put it in admin mode
- Will SHRINKDATABASE even do what I want?
- I've read the SHRINKDATABASE can fragment indexes. Is this true? If yes, how do I avoid it?
Thanks!
Norm
Hi:
I have maintenance plan on DBABC backup log to .trn job to run every 90 minutes (daily).
in order to keep the log file small, I also set up a job (T-SQL) to run at 4:15 am to backup log ABC with truncate_only, then run dbcc shrinkdatabase (DBABC, 10)
it looks "backup log ABC with truncate_only" has conflicts with the every90 minutes backup transaction log.
Question: could I keep the backup transaction log every90 minutes, but still could shrink the log file. The log file is growing very fast.
Or I have to use differential backup instead of backup tran log?
thanks
David
So, basically I'm trying to do an insert into exec(dbcc shrinkdatabase)
Code Snippet
DECLARE
@SQL VARCHAR(1024)
,@DBName VARCHAR(512)
SET @DBName= 'admin'
IF OBJECT_ID('tempdb.dbo.#ShrinkDB') IS NOT NULL
DROP TABLE #ShrinkDB
CREATE TABLE #ShrinkDB
(
DbId INT
,FileID INT
,CurrentSize BIGINT
,MinimumSize BIGINT
,UsedPages BIGINT
,EstimatedPages BIGINT
)
SET @SQL=
'
INSERT INTO #ShrinkDB
(DbId,FileId,CurrentSize,MinimumSize,Usedpages,EstimatedPages)
EXEC(''DBCC SHRINKDATABASE(' + @DBName + ')'')
'
EXEC(@SQL)
SELECT * FROM #ShrinkDB
and receive the following:
Cannot perform a shrinkdatabase operation inside a user transaction. Terminate the transaction and reissue the statement.
I've tried adding a begin tran and commit tran around it, doesn't help ...
Is there any way around this? Is there any other way to capture the output of a shrink database from a procedure perspective?
Thanks
Hi guys,
I identified a problem today with one of our development DB's where tempororary tables were not being cleaned up by some stored procedures, and this lead to a large tempdb size (about 2 gigs data and a translog of 25 gigs!).
I'm currently running a dbcc shrinkdatabase on it, but its been running for over an hour now. In my experience with smaller DB's, this process normally takes a few minutes. Can anyone give me a ballpack figure as to how long I can expect this to run for? Are we talking an hour, a few hours, a day, a few days?
Thanks in advance
Matt
Hi
I have a full backup Job in SQL Server2000 server(designed by some body).
Step1.DBCC SHRINKDATABASE
Step2.DBCC SHRINKFILE -->It is shrinking log file
and
BACKUP DATASE()
Is it OK Shrinking Database and log files before full backup..
Your advice is appreciated.
Hi,
I am trying to do this:
UPDATE Users SET uniqueurl = replaceAllEmptySpacesInUniqueURL('uniqueurl')
What would be the syntax.
Any help appreciated.
Thanks
I am generating a Report from Sql Data Source in Sql Server 2005 and viewing the Report in Report viewer control of Visual Studio 2005.
The data in the Data Source contains string with multiple spaces (for example €œ Test String €œ) but when they get rendered in Report viewer control, multiple spaces gets converted to single space €? Test String €œ.
I tried following solutions
1) Replacing spaces with €œ €?
2) Inserting <pre> tag before the string and </pre> tag after the string (Also tried <Pre> instead of <pre>)
But in all the cases result is same. The Report Viewer control is showing €œ €? instead of space and €œ<Pre>€? tag instead of preserving spaces.
Please provide me a solution so that spaces can be preserved in Report Viewer.