Trace Effect On Performance
May 23, 2001When running a trace on a database, how does if affect that databases performance? Does it slow it down at all?
Thanks In Advance,
Chris
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What Kind Of Performance Effect Do Constriants Have.
Dec 7, 2004We have a database that we have designed so all the data dependances are managed by the front end code. However the company we are writing it for has asked us to add around 50 constraints. I was just a little worried what kind of effect on performance this would have. Cheers Ed
View 1 Replies View RelatedPerformance Trace-off
Jun 4, 1999Hi All,
I've just joined a project for improving performance issue on MS-SqlServer(6.5).
I was DBA Sybase a couple years ago I am unsure that MSSQL works in a manner as
Sybase. I want to change some configuration options (sp_compile) and modify
the table and indexes definition for improving the performance and avoid having
deadlocks.
Is true that :
When field, which has a default value assigned to NULL, is equal
at a variable-length field and when you execute an update on it you will
get 2 transactions : first a delete and then insert ?
(On Sybase there is the concept of Index Covering to avoid that overhead
what about Ms-Sqlserver 6.5).
To avoid having deadlock I want to use the FILLFACTOR I think this option
is usefull only on cluster indexes, that's right ?
For huge tables the order of fields is important :
first position put the primary key field
after put the FK, secondary key, short type field (tinyint,int,datetime...)
go on with the alpha fields (char) NOT NULL
at last the NULL fields
Is that design efficient for Ms-SQLserver ?
Many thanks,
Herve
Sql Trace Performance
Dec 26, 2007
Hi all,
As a developer I have worked with all the tools provided by Sql server package (from the former 7 to the new 2005) and never felt that I shouldn´t use them because of performance issues! Now my systems collegue says to me that running a sql trace is very bad for the database. I have checked and for me doesnt seem that way.. Is this true? Running a trace can bring me a performance problem? When do you ususally use traces?
Thaks in advance for all the posts!
BL
Profiler Performance Trace Template
Jul 20, 2005Greetings,I have been attempting to develop a useful and functional template fordatabase tracing/profiling that will enable me to collect metrics forperformance tuning. The database is used as an OLTP database as well asrunning reports. Below is a list of my trace properties and data columns.I would be interested to see other examples and strategies for the Profiler.thanxPerformanceExecution planSecurityAudit LoginAudit LogoutSessionsExisting ConnectionStored ProceduresRPC: CompletedTSQLSQL:Batch completedDATA COLUMNSEvent classtextdataapplication nameNTUsernameLoginNamesCPUreadwritedurationclient proc idSPIDStarttime
View 3 Replies View RelatedCredential Does Not Take Effect
Mar 13, 2008I have a sqlserve, which service account is 'local system', running in machine A.
A credential ,which associated a windows user U1 in machine A, mapped to a sqlserver login Login1.
A file named 1.txt that only can be accessed by U1 in machine A.
A CLR procedure P1 that would read the 1.txt file.
I encounter a error when i access the 1.txt file through P1 as Login1:
A .NET Framework error occurred during execution of user-defined routine or aggregate "HelloWorld":
System.UnauthorizedAccessException: Access to the path 'E:1.txt' is denied.
System.UnauthorizedAccessException:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
at System.IO.StreamReader..ctor(String path, Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize)
at System.IO.StreamReader..ctor(String path)
at StoredProcedures.StoredProcedure1(SqlString fileName)
.
I think it need a credential when a sqlserver login access some resource outside the sqlserver, so i add a credential and mapped to the login
any suggestions would be appreciated.
And please correct me if i have any inaccurate concept.
HAVING Clause Has No Effect
Nov 12, 2006I have this stored procedure. I want to run a few simple SQL functions against my tables. In particular I want to take a subset of records (One or Two years worth) and calculate AVG, VAR and STDEV.
It does not work the way I thought it would. I end up with the whole input table in #tempor1 which is about 6 years worth of records.
set ANSI_NULLS ON
set QUOTED_IDENTIFIER OFF
GO
ALTER PROCEDURE [dbo].[findAve1YearDailyClose_MSFT]
AS
BEGIN
SET NOCOUNT ON;
SELECT adjClosed, volume INTO #tempor1 FROM dbo.dailyCl_MSFT
GROUP BY dateTimed, adjClosed, volume
HAVING (dateTimed > DATEADD (year, -1, MAX (dateTimed)))
SELECT AVG (adjClosed) AS "AVGAdjClose1Year",
VAR (adjClosed) AS "VARAdjClose1Year", AVG (volume) AS "AVGVolume1Year",
STDEV (volume) AS "STDEVVolume1Year", COUNT (*) AS "total"
FROM #tempor1
END
Thus if I change the number of years I subtract from the latest date from 1 to 2 I end up with the same result. What is the problem?
Thanks.
Any Effect Of SQL Agent On REPLication?
Feb 4, 2004Hello,
What happens to these REPLication agents if SQL Agent is stopped and started:
Snapshot Agents
Merge Agents
Misc Maintenance Agents
Can the agent be stopped and started with no thought to the status of replication, or should the replication state be modified in some way before any change to the status of the Agent?
(I know REPL depends on agent, so wuestion is, can REPL simply resume or not when agent is re-started.)
Thanks.
MichaelGG
Upgrade Windows NT To 200, Effect The SQL 6.5?
Jan 31, 2004If the server is upgraded to Windows 2000, will SQL 6.5 require to be upgraded to SQL 7 or 2000?
View 1 Replies View RelatedEffect On Snapshots While Reindexing
Apr 30, 2007Does someone know if doing a reindex on a clustered or non-clustered index cause the snapshot file to grow? In other words, is the data that makes up the snapshot copied from the source to the snapshot database? If a normal reindex is done on the underlying database, will it block users from acessing the snapshot? Any help would be appreciated.
View 1 Replies View RelatedSame Effect As Cross Join?
Jul 7, 2006How can I achieve the same effect as a cross join (since the merge operator doesn't have a cross join)?
Situation is this... a flat file has some header and footer information that I need to keep and attach to each row. So for simplicity sake of an example lets just say header has only 1 thing we care about - a row that says DATE=01/01/06.
I take the file and run a split to split into "Date" "Data" and "other" (other has all the throwaway rows in header and footer I don't care about). Then I use a derived column object to get all the columns out of the "Data". Finally I want to add that Date metadata back to every row in the data...
I thought this would be an easy thing to do.. but I can't seem to figure out how to duplicate that Date info into every row.. Hopefully I am overlooking something simple.
Thanks in advance.
Effect Of Joins On The Speed
Aug 6, 2007Hi..
I want to know that when I do something like..
Select Query
Left Join
Select Query 2
Left Join
Select Query 3
How does it work actually?
As in, whether Query 2 & Query 3 will work only on the records retrieved by Query 1 only.
Or, all the select statements retrieves all the records and then the condition is applied to filter out the results.
Also, does the order of the Select statements make any difference on the speed?
Thanks
OSQL DELETE Using LIKE, With A Cascading Effect
Nov 16, 2006Edit: Sorry This is OSQL.What I use as my query is:"DELETE FROM timerecord WHERE Actual_Time_In LIKE '11.12.2006%'"The row of Actual_Time_In is formatted with Date and time (MM.DD.YYYY HH:MM:SS) sometimes there are ten records and I'd rather not have to remove them from the table one at a time. However, even though I have a record that is '11.12.2006 22:43:00' my delete doesn't work osql states I have 0 rows affected.This is only MSDE so I don't have anyother way to open the table.Sometimes these records have other records that reference them. Is there anyway to do a cascading delete without it getting to complex?Thanks of all your help, I am just a tech support guy beating his head against a wall..
View 2 Replies View RelatedDoes JOIN Order Effect Efficiency?
Feb 5, 2007Hi all,
Does JOIN order effect efficiency?
If I have three large tables to join together should I join the two that I know will cut the number of rows down a lot first and then join the 3rd table or does it make no difference (if I join the first and 3rd - which I know will be a large result set and then join the 2nd).
Thanks in advance,
Chiz.
Effect Of Shrink Database Question
May 1, 2008Hello all, thanks in advance for any advice here.
My question is, what's the effect of the Enterprise Manager > Tasks > Shrink Database function? It seems to reduce the used space on the device. Testing it on some dev machines, I've seem to have gotten back as much as 20g of space. I know it should grow back to that, but the time it took was minimal, and it didn't seem to affect my developers. They tend to add alot and delete alot during testing. What negative effects of running this should I look out for? Will it affect the DB long term? Is is preferable to schedule once a month or so? Is this done on Production DB's?
Thanks for any guidence on the usage of this.
Bob
Not a downstroke, fistpicker
The Collapse/toggling Effect In SSRS
May 27, 2008Hi Guys,
I have created a report where I have Z-Index all set correctly, but I cannot see the desired effect of toggling as can be seen in the AdventureWorks sample of SalesOrder report that gets shipped with SSRS. What am I missing?
Effect Of Do Not Recompute Statistics Option
Jul 13, 2007I'm looking into the automatic recompilation of stored procedures andI have been reading up on the "Do not recompute statistics" option onindexes.Am I correct in concluding that disabling the "Do not recomputestatistics" option for an index, will ensure that no automaticrecompilations will occur as a result of updates to data in thatindex?Am I also correct in understanding that the "Update Statistics" willstill update statistics for the index even if the "Do not recomputestatistics" option is disabled?RegardsBjørn
View 1 Replies View RelatedPRINT Only Takes Effect After T-SQL Completion ?
Jul 20, 2005Hello All,I have a stored procedure which will act like a main/controller scriptwhich will then invoke more stored procedures (~20). Basically, itlooks something like below:-- start scriptcreate procedure ...print 'process started'exec sp_1exec sp_2exec sp_3....print 'process ended'-- end scriptLooking at it, after running that procedure, immediately I would expectthe first PRINT statement to be printed but it won't. It seemedthat the print statements would only display the messages afterthe whole processing completed.What's the reason for this sort of behaviour. If so, then we wouldnot be able to print any progress reporting in our scripts.Please comment.Thanks in advance.
View 4 Replies View RelatedSQL Server Setting Has Any Effect On Queries?
Jul 20, 2005Hello,When I try to run the following query on two different SQL Servers,I get error on one of the server (both has same set of data). I wastrying to get rows for ProductCode='XYZ_Q1'.SELECT ProductName, ProductType, ProductDesc FROM Product WHEREDepartmentID=12 AND ProductType > 2000 AND CAST(SUBSTRING(ProductCode,CHARINDEX('_', ProductCode)+2, 1) AS int)=1Example dataProductCode|ProductName|ProductType|DepartmentID|P roductDescXYZ_T_1|Test1|1000|12|TestXYZ_T_2|Test2|1000|12|TestABC_T_1|Test3|1000|11|TestABC_T_2|Test4|1000||11|TestXYZ_Q1|Test5|1000|12|TestABC_Q1|Test6|1000|11|TestIt's trying to cast all values under 'ProductCode' column instead ofapplying to subset with condition 'DeparmentID=12 AND ProductType >2000 'I solved the problem by equating it to whole string rather thantrying to extract the integer part of it. But I wanted find-out reasonas to why this is happenning.Is there any SQL Server setting that's causing this?Thank you very muchManchaiah
View 1 Replies View RelatedPermissions Grants, Denies Don't Take Effect
Sep 11, 2006Hi,
I'm trying to grant/deny object permissions in a user database using Enterprise Manager and query tool without success (for €˜public€™ role and individual sql logins). I€™m not getting any error messages. Permission changes just don€™t take effect. Although, there are few objects, which already have permissions granted and I'm able to change permissions for these ones.
How can I change the permissions?
Why The Report Parameter Dose Not Take Effect?
Nov 6, 2006Hi, all experts here,
Thank you very much for your kind attention.
I am encountering a problem with reports built on my SQL Server 2005 Reporting Services Server. The reports parameters do not take effect at all? I chose the value from the report parameter list, but the result returned the whole report data. Why is that? And how can I solve this problem? Really need help.
Thanks a lot in advance for any guidance and help.
With best regards,
Yours sincerely,
Change SA Password. Any Effect To Replication?
Sep 11, 2006Dear all,
I have some questions regard subject above. I want to know the impact of replication process after SA pasword been changed.
Example: server1 (hq), server2 (district) & server3 (district).
If server1, SA password been changed, is it server2 & server3 need to change too?
may i know where is it the replication SA password stored? is it replication script refer ID (SA) from Security -> Logins?
I hope someone can help me.. thanks.
Does ALTER COLUMN Effect The Data?
Aug 10, 2007I just want to change the length of 2 fields. They're CHAR and NVARCHAR type. I want to change the length from 50 to 75.
Will doing this effect the data? Will it delete the data in those columns? I just want to make sure before I do anything. The table contains about 2.5 million rows, so I don't want to mess anything up. I'm aware that the script may take a while to run and finish, but I'm only concerned about data integrity.
Here is my example script syntax to show what I'm planning to do:
Code Snippet
alter table credit alter column writeoffreason char(75) not null;
Does it matter what type of data is in the columns? For now, it's only CHAR and NVARCHAR.
I also read somewhere that you can increase length but cannot decrease without repercussions?
Thanks!
Allow Blank Value Does Not Effect When Parameter Is Multi Value = Bug!
Jan 3, 2008I build reports using reporting services 2005 sp2.
I have 3 parameters---> 3 multi value combo box .
However when I tick "allow blank value" within the report parameter
properties for this drop menu, report WILL NOT run without making
selection.(The xml is ok allow blank value set to true)
the reports still require you to enter a value for all parameters in the report when the report can and should be able to be run with no parameter defined.
the trick "default values for all of the params to "=String.Empty"" is not good .
I found this article but i can't find microsoft hotfix for it .
http://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=125877
"Thank you for filing the bug. This issue has been fixed for the next CTP.
Posted by Microsoft on 8/11/2005 at 7:00 PM"
Am I missing something obvious here?
Effect Of Update Statistics On Database And On An ASP Application
Jun 13, 2001Hi
I had run a stored procedure in my server that update statistics against all user defined tables in my database (MSSQL 7.0).
Since then I am getting errors in my ASP application where I am reffering to adovbs.inc.
Here is an example of errors I get.
Microsoft VBScript runtime error '800a0411'
Name redefined: 'adOpenForwardOnly'
/Essai/adovbs.inc, line 14
Below is the stored procedure I have run against the database.
Can anybody help tank you guys.
CREATE PROCEDURE update_all_stats
AS
/*
This PROCEDURE will run UPDATE STATISTICS against
ALL user-defined tables within this database.
*/
DECLARE @tablename varchar(30)
DECLARE @tablename_header varchar(75)
DECLARE tnames_cursor CURSOR FOR SELECT name FROM sysobjects
WHERE type = 'U'
OPEN tnames_cursor
FETCH NEXT FROM tnames_cursor INTO @tablename
WHILE (@@fetch_status <> -1)
BEGIN
IF (@@fetch_status <> -2)
BEGIN
SELECT @tablename_header = "Updating " +
RTRIM(UPPER(@tablename))
PRINT @tablename_header
EXEC ("UPDATE STATISTICS " + @tablename )
END
FETCH NEXT FROM tnames_cursor INTO @tablename
END
PRINT " "
PRINT " "
SELECT @tablename_header = "************* NO MORE TABLES" +
" *************"
PRINT @tablename_header
PRINT " "
PRINT "Statistics have been updated FOR ALL tables."
DEALLOCATE tnames_cursor
Need To Know Why Two Calculation Methods Result In Different Rounding Effect
Feb 23, 2004Hi All,
I have a view that does some calculations on data in the database. Note in the two code snippets, that the columns being used in the calculations are all type FLOAT(53).
My confusion stems from the fact that both code snippets should be functionally the same in my "view" (*snicker* I kill me...), but they return different results which I think are related to rounding issues.
The first snippet:
CREATE VIEW dbo.VIEW_Calculate_PortfolioIndex
AS
SELECT PP.PortfolioID AS PortfolioID,
PP.CreateDate AS CreateDate,
(ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2) * PP.AvgHighPriceRatio) AS HighIndex,
CASE WHEN PPI.CloseIndex IS NULL
THEN 100.00
ELSE ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2)
END AS CloseIndex,
(ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2) * PP.AvgLowPriceRatio) AS LowIndex,
PP.Volume as Volume
FROM dbo.PortfolioIndex PPI INNER JOIN
dbo.PortfolioPerformance PP ON
PPI.PortfolioID = PP.PortfolioID AND
PPI.CreateDate = PP.PrevDate
GO
and it's result set:
PortfolioIDCreateDateHighIndexCloseIndexLowIndexVolume
102/20/2004781.11774.17769.53527896
112/20/2004757.97750.36742.93605740
122/20/2004509.92501.72494.854180516
132/20/2004988.23980.65973.58632337
142/20/20041283.261269.571259.37416145
And the second snippet:
CREATE VIEW dbo.VIEW_Calculate_PortfolioIndex
AS
SELECT PP.PortfolioID AS PortfolioID,
PP.CreateDate AS CreateDate,
(CloseIndex * PP.AvgHighPriceRatio) AS HighIndex,
CASE WHEN PPI.CloseIndex IS NULL
THEN 100.00
ELSE ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2)
END AS CloseIndex,
(CloseIndex * PP.AvgLowPriceRatio) AS LowIndex,
PP.Volume as Volume
FROM dbo.PortfolioIndex PPI INNER JOIN
dbo.PortfolioPerformance PP ON
PPI.PortfolioID = PP.PortfolioID AND
PPI.CreateDate = PP.PrevDate
which returns a different result set:
PortfolioIDCreateDateHighIndexCloseIndexLowIndexVolume
102/20/2004784.52774.17772.89527896
112/20/2004755.64750.36740.64605740
122/20/2004512.43501.72497.294180516
132/20/2004989.77980.65975.1632337
142/20/20041285.991269.571262.05416145
Specifically, I am concerned with the HighIndex and LowIndex values...since the only modification between the two code snippets is that in the second one, the HighIndex and LowIndex calculations use the column name of CloseIndex (as calculated in the select) in the calcs for those two columns, rather than repeating the code used to calculate the CloseIndex column's value.
I am confused as to why the results of the HighIndex and LowIndex caculations are different in the two selects, when the only change (in my view/expectations) is that one references the CloseIndex column, and the other one just reproduces the calculation itself
*scratching head*
any thoughts? Thanks,
Paul
Report Model Item Security Has No Effect
Apr 25, 2007Hi,
I am trying to use a very easy and simple feature of a reportmodel, model item security.
In my example i have two users; HGHJohn and HGHJKooi
I want to test if I am able to restrict access in the model to a whole entity. HGHJKooi shouldn't be able to see the entity 'Customers'.
These are the steps I executed:
1. In Sqlserver management studio I opened the properties of my model and navigated to the tabpage 'model item security'.
2. I activated the option 'secure individual model items...'
3. In the root of the model I declared two users(groups) as specified above
4. Automatically all nodes inherit these settings from the root.
5. For the entity 'Relations' I change the default, by selecting 'use these roles for each group or user account'
6. I removed HGHJKooi from this list, leaving only 'HGHJohn as model item browser
What I expected at this moment is that when I login the system as HGHJKooi, then I won't see this entity, but I still can! Does anybody know a solution to this problem?
Julian Kooiker
DPI Setting When Rendering To PDF Has No Effect On Embedded Images
Apr 7, 2008A report contains images rendered at 300 DPI. This DPI is fixed, in order to achieve the required quality of the image when printed.
Rendering the report (locally, using LocalReport.Render) as a PDF, with the DPI set to 300 in the DeviceInfo string does not appear to have any effect as the images in the resulting PDF are rendered at 96 DPI.
One solution is to render the report as a TIFF, which does have the desired effect. However, it is a PDF that is required, and converting the TIFF to PDF is problematic in itself. In addition the conversion of the TIFF to a PDF (using PDFCreator) results in a black that is now a blue-black instead of true black.
Any suggestions?
Effect Of A SELECT Stored Procedure On Tables Or Database
Jul 25, 2007Hi all,
I have a few stored procedures which all perfom SELECT queries on a table in the database. Do these kind of stored procedures affect any other processes or procedures working on that table. I am talking about locks, blocks etc.
For example, the database has a table which gets updated periodically by some process which I don't know. Now I wrote some stored procedures just to do the SQL SELECT with some conditions in WHERE clause. Is there any possibility that my stored procedure failed and the because of this, the process that runs on the table was not executed?
Large SQL Update - Effect On SQL 2005 Transactional Replication
Feb 1, 2007 I'm a newbie to Replication and recently setup the following.
Publisher and Distributor on the same SQL2005 server, then I've got 7 subscribers(SQL2000 servers) and I'm using push subscriptions. I'm replicating 5 SQl tables which don't have too many changes and these are scheduled to run every 3 hours. In a few days a large one off SQL update with add an additional 10,000 rows to one of the replicated tables. I was wondering what impact this would have on the above setup i.e are there any sort of limitations here. I'm assuming not but thought I would check. I'm thinking it will just cause additional overhead on the server, but the update is being applied when no users will be using the database.
Any feedback greatly appreciated.
Thanks
Bug: Expression On Disable Property Doesn't Have Desired Effect
Jul 18, 2007[Microsoft follow-up]
Hello,
I think I've found a bug.
I have an expression set on the 'Disable' property of a data-flow task. When the expression evaluates to true the data-flow still executes. That seems wrong to me.
I ahve a demo package here: http://folders.live.com/self.aspx/VQ9oHa1TJjc/Public/SSIS%20Stuff/ExamplePackages/20070717%20Expression%20on%20Disable%20property%20has%20no%20effect/Package1.zip
Please reply letting me know whether this is indeed a bug or not.
I'm on SP1 by the way.
Regards
Jamie
Manually Changing Flat File Source Has No Effect
Jul 5, 2006I have a data flow that reads from a flat file source, goes through one data transformation component to change from unicode to normal text and writes the data to a SQL Server table. This has been working fine throughout development using a specific source file as input. I have now manually changed the path and name of the input source file in the connection manager to point to a new file and the task continues to process the old text file.
I open the connection manager and check its properties and preview the data and it all looks fine - it is finding the new file. I also edit the flat file source component and preview the data and it shows the data from the new file. I run the data flow by right-clicking and selecting Execute Container and it continually reads the old file and processes it! (I do the right-click thing because this is just one small part of a larger package.)
This has got to be a bug, but just where I wonder. Anyone ever see this before? I'm going to try to run the entire package in debug mode, instead of right-clicking, next and see if that's any different. Anyone have any ideas on how to force a refresh of the necessary internal components to make it read the new file? All the external properties point to the new file, but it's not being read.
Joe
Update:
I ran the entire package and found no difference in execution - it's still reading the wrong input file. I then deleted and recreated the connection manager, again specifying the new file to read. It still continued to read the old file. I deleted the flat file source component and recreated it, specifying the latest connection manager (twice, since I must have pointed it at the wrong one the first time and it read a completely different file). I still have the same problem of it reading the wrong input file. I don't know what else to recreate that would have any effect. Does anyone have any ideas? I need to change the pointer to different files multiple times and have it read several different input files. This has got to work somehow. Any help is appreciated.
Joe
SQL 2005 Standard Won't Accept Connections - All Common/FAQ Remedies Have No Effect
Sep 24, 2006Hi,
SQL
Server 2005 isn't accepting any connection other than SQL Management
Studio from the local machine. However, even that's exhibiting strange
behavior (please see below for more details).
I've read
through all the common errors regarding enabling remote connections via
the SAC tool, making sure protocols are enabled, etc. This case seems
to be completely outside. Any advice appreciated.
Thanks,
Elias
[1] Client side:
What
is the connection string in you app or DSN? N/A. Can't connect via any
remote method, including client Control Panel > ODBC > create
DSN, SQL Server Enterprise Manager, third party application.
If
client fails to connect, what is the client error messages? Several,
depending on method: "server does not exist or access denied", "error
has occurred... under default settings, SQL Server does not accept
remote connections", etc.
Is the client remote or local to the SQL server machine? Remote
Can you ping your server? YesCan
you telnet to your SQL Server? No. However, there's a functional
instance of SQL Server 2000 on the same domain which has no problems- telnet also fails to that instance, even locally from either machine using the 127.0.0.1 address. Telnet functions for other ports.
What
is your client database provider? N/A Or/And, what is your client
application? SQL Management Studio and others
Is your client computer in the same domain as the Server computer? Same domain
What protocol the client enabled? TCPIP when I attempted to create the DSN. Not sure what protocol SQL Management Studio uses.
Do
you have aliases configured that match the server name portion of your
connection string? NoDo you select force encryption on server and/or client? No
[2] Server side:
What is the MS SQL version? SQL Server 2005
What is the SKU of MS SQL? Standard
What
is the SQL Server Protocol enabled? [Shared Memory | TCPIP | Named
Pipes ] Have tried all three individually and together. Configuration Manager exhibits strange behavior (see below)Does
the server start successfully? Server starts successfully when the
machine boots. However once it's stopped, it can't be restarted (see
below)
If SQL Server is a named instance, is the SQL browser enabled? Default instance
What is the account that the SQL Server is running under? Local SystemDo
you make firewall exception for your SQL server TCP port if you want
connect remotely through TCP provider? Not sure, but SQL Server 200 instance is working OK
Do
you make firewall exception for SQL Browser UDP port 1434? Unknown
[3] Platform:
What is the OS version? Client: Windows XPSP2 Server: Windows Server 2003
Do you have third party antivirus, anti-spareware software installed? Client: Trend Micro Server: UnknownOther behavior:
A separate instance of SQL Server 2000 on a different machine on the same domain is functioning without problems.
Telnet
to either SQL Server (functional 2000 or problem 2005) on port 1433 is
not possible - even when attempted from the local machine using
127.0.0.1! Telnet to both machines works using other ports.
When
creating a DSN from a client machine, problem 2005 instance is in list
of available SQL Servers, however connection fails ("SQL Server denied
access or does not exist").
MSSQLSERVER service starts
automatically on boot. However, once stopped the service can not be
restarted. Message given: "SQL Server (MSSQLSERVER) service on Local
Computer Started and then Stopped. Some services stop automatically if
they have no work to do, for example, the Performance Logs and Alerts
Service."
SQL
Server Surface Area Configuration for Services and Connections tool
does not display Database Engine option as indicated by this MS guide
to enabling remote connections:
http://support.microsoft.com/default.aspx?scid=kb;en-us;914277
SQL
Server communication manager shows TCP, Shared memory, named pipes
enabled. However event log seems to show instance not listening via any
protocol. Message displayed as: "SQL Server listening on ." (should
read: "Server is listening on ['any' <ipaddress> <ipv4>
<Port Number>])
Several answers indicated uninstall and reinstall could solve these problems. However, wizard refused to uninstall SQL Server.
Attempted disabling Shared Memory as documentation indicates this protocol gets used first. No luck.
Access through SQL Server Management Studio works, from local machine only.
Able to ping machine by name and IP.