Unallocated Space In SQLSERVER

Aug 17, 2006

HI,

I am short of space on one of our sqlservers and I want to claim unallocated space for one of my databases and give it back to OS.

I guess it is relatively simple task to do but unfortunately I am unable to find such a command. Can somebody help me and provide me that command.

Rgds
Wilson

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SQL 2K Unallocated Space Won't Free Up - HELP!

Nov 5, 2004

I've gone through the forum and have seen several others with a similar situation. I recently noticed my .mdf file grew to 200GB yet the data in the file is only about 40GB. I run sp_spaceused and get the following: database_size = 176GB, unallocated space = 134GB, reserved = 43GB, data = 17GB, index_size = 19GB, unused = 6GB.

I've tried "dbcc shrinkdatabase (mydb, truncateonly)", tried restarting server, tried running a maintenance plan including a reindex of the database, and I don't know what to do next.

Does anyone know how to free up this space?

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Jul 20, 2005

At my current workplace, whenever I check table sizes using the'reserved' column from sysindexes, or sp_spaceused, I get a total forall user tables which exceeds the physical size of the database.Running sp_spaceused with no parameteres, I get a NEGATIVE value forunallocated space in the database, but only see this if I return theresults in GRID format in QA (text format gives less output):DatabaseName DatabaseSize Unallocated Spacexxxxx_xxxxx11502.38 MB-4874.80 MBReserved Data index_size unused16602800 KB7013752 KB2381904 KB7207144 KBIf I re-run sp_spaceused with the @updateusage='TRUE' option, thisoutput gets corrected to:DatabaseName DatabaseSize Unallocated Spacexxxxx_xxxxx11502.38 MB2773.76 MBReserved Data index_size unused8770680 KB6928168 KB1808096 KB34416 KBwhich shows a substantial difference in the Reserved/Data/Index/Unusedsizes.This happens every day - any ideas about:1) Why this might be happening on such a large scale, and2) Is it conceivable that these discrepancies in space allocationinformation could be causing performance problems? I can imagine thatif the database is trying to locate free pages on extents yet itsinternal view of these doesn't match reality then this could impededata insertion.Offers anybody?

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Sep 26, 2007


Hi all,
When I am rebuilding the indexes on the tables, I am getting lot of free space( unallocated) on the database.

Before rebuilding the indexes , the size of the database = 385 Gb
After rebuilding the indexes, the size jumps to = 572 Gb (i.e.) This means 187 Gb of unallocated space .

The Command use to rebuild indexes is:
USE [databasename]
GO
ALTER INDEX [PK_index] ON [dbo].[tablename] REBUILD WITH
( PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, SORT_IN_TEMPDB = ON, ONLINE = OFF )
GO

So, every time we rebuild indexes, we have to shrink the database
(or)
Is there anything else ,I should be doing.
Thanks.

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Sp_spaceused Shows Negative Unallocated Space

Mar 1, 2005

Hi All,

When i run sp_spaceused on one of my database, PROD, it gives the following output

database_name: PROD
database_size: 4268.00 MB
unallocated space: -789.82 MB


reserved: 4654920 KB
data: 2929008 KB
index_size: 327272 KB
unused: 1398640 KB

Why is that the unallocated space is negative ?

On the drive where the datafiles resides there is enough free space . Also, the datafile and transaction are set to auto grow with unlimited file growth

FYI - the OS is Windows 2000 and the DB is SQL Server 2000 with SP3

Appreciate your time and help on this.

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Apr 1, 2015

I am trying to track unallocated space (because on my database growth is not kicking in) So using below query but not working!!! Is there any way I can track 'database size' and 'unallocated space' on a single database?

create table A(
Rundate DATETIME NOT NULL DEFAULT(GETDATE())
,DatabaseName varchar(100)
,Database_size varchar (100)
,unallocatedSpace varchar (100)
,reserved varchar(100)

[code].....

exec AdventureWork..sp_spaceused ------not working------

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Apr 22, 2008



Morning forum,

I'm having a problem to which I'm sure the answer is simple...

All I want is a list of databases on my server with their allocated size and the free space within. Something similar to the first table that sp_spaceused gives you but on a server wide scale.

As I say, I'm sure there's a simple solution out there, but alas Google has failed me.

Thanks in advance,

Dan.

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Jun 18, 2002

We are using SQL 2k.Can we shrink the space allocated in SQL databases.Please help.

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Nov 14, 2007

Hi,
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Any help appreciated.
Thanks
 

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Feb 23, 2007

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 &lt;Pre&gt; instead of <pre>)

But in all the cases result is same. The Report Viewer control is showing €œ&nbsp€? 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.

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Nov 26, 2015

I am using the below script to get space alerts Β and now i am interested in sending alerts Β if for any drive space available is Less than 10% or 15%.. how to convert beelow code to find in %Β 

Declare @Drives Varchar(20)
DECLARE @Spaces Varchar(50)
DECLARE @availableSpace FLOAT
DECLARE @alertMessage Varchar(4000)
DECLARE @RecipientsList Β VARCHAR(4000);
CREATE TABLE #tbldiskSpace

[Code] ....

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Mar 2, 2005

Hi.. I was doing a good maintenance on my DB and my trans log LDF keep growing until 30GB but my DB data file MDF is only 2GB. I found the two following method to reduce my log size.

Method 1: I used veritas to backup log file with truncate
Method 2: I used the shrink database option in Enterprises manager to shrink it (file chosen=log , use default option)

After doing that, I found my LDF log file is still about the same size=27GB but when I see clearly, from the shrink database windows, the log spaced used reduced to only 100MB, the allocation log space is still 27GB. Why? How to make the LDF smaller to be the around the same size as the space used 100MB?

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Jul 20, 2005

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Dec 5, 2001

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3700 MB allocated but only 100 MB used and 3600 MB are free !

Transaction log properties :
Automatically grow file are filled
file growth by percent = 5%
maximum file size - restrict filegrowth = 3700 MB (we can't reduce it !)

Thank you for your precious help !
Khaix from Brussel.

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Nov 14, 2006

How do we suppress multiple spaces to a single space in T-SQL

E.G.

Field: FullName

e.g.

WOMENS HEALTH RIVER VALLEY
JOHN FAMILY MED GROUP
HERSH STWEART P.
PARK HEIGHTS MEDICAL CENTER
KOPP WHITEFIELD E

The o/p wanted is

HERSH STWEART P.



Thank you.


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May 10, 2007

We have a static class that makes an HTTPWebRequest to get XML data from one of our vendors. We use this as input to a stored proc in SQLServer2005. When I compile this class and call it from a console application in visual studio it executes in milliseconds, everytime. When I compile it, create the assembly and clr function and execute it in SQLServer, it takes around 14 seconds to execute the first time, then on subsequent requests it is again really fast, until I wait for 10 seconds and re-execute, once again it is slow the first time and then fast on subsequent requests. We do not see this behavior when executing outside SQLServer. Makes me think that some sort of authentication is perhaps taking place the first time the function is run in SQLServer? I have no idea how to debug this further. Anyone seen this before or have any ideas?



Here is the class:






Code Snippet

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;

namespace Predict.Services
{
public static class Foo
{
public static string GetIntradayQuote(string symbol)
{
string returnQuote = "";

HttpWebRequest request = (HttpWebRequest)(WebRequest.Create("http://data.predict.com/predictws/detailed_quote.html?syms=" + symbol + "&fields=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,28,30"));

request.Timeout = 1000;

HttpWebResponse response = (HttpWebResponse)(request.GetResponse());

StreamReader streamReader = new StreamReader(response.GetResponseStream());

returnQuote = streamReader.ReadToEnd();

streamReader.Close();
response.Close();

return returnQuote;
}
}
}



When I run call it from a console app it is fine.



I compile it into a dll and then create the assembly and function as follows:






Code Snippet

drop function fnTestGetIntradayQuoteXML_SJS

go

drop assembly TestGetIntradayQuoteXML_SJS

go

create ASSEMBLY TestGetIntradayQuoteXML_SJS from 'c:DataBackupsCLRLibrariesTestGetIntradayQuote_SJS.dll' WITH PERMISSION_SET = EXTERNAL_ACCESS

go

CREATE FUNCTION fnTestGetIntradayQuoteXML_SJS(@SymbolList nvarchar(max)) RETURNS nvarchar(max) AS EXTERNAL NAME TestGetIntradayQuoteXML_SJS.[Predict.Services.Foo].GetIntraDayQuote

go



declare @testing nvarchar(max)

set @testing = dbo.fnTestGetIntradayQuoteXML_SJS('goog')

print @testing





When I execute the function as above, again, really slow the first time, then fast on subsequent calls. Could there be something wrong with the code, or some headers that need to be set differently to operate from the CLR in SQLServer?



Regards,



Skipper.

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Sep 20, 2006

Hi experts;
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I created this table
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Insert Data
insert into testunicode (Bez)values('Œ€„’')
with 2 Unicode characters
Œ€ = 0x2300
„’ = 0x2122

Selecting the data
select Bez from testunicode
I see
"?„’"

„’ = 0x2122 is ok but instead of 0x2300 there is 0x3f

When I modify the insert statement like that ( 8960 = 0x2300 )
insert into testunicode (Bez)values(NCHAR(8960)+'„’')

and select again voila i see
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DB name: name of db instance

port: 1433(default)

user and pass.

My attempts so far results in

"java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket."

and

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Msg 7311, Level 16, State 2, Line 1
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Thank you

mipo


database_namedatabase_sizeunallocated space
------------------- -----------------------------------
opms 3498.88 MB807.41 MB


reserved data index_size unused
------------------ ------------------------------------ ------------------
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