Action plans and problem solving

Parameter gets converted in execution plan, when you explicitly define a different datatype for the parameter

John Daskalakis — Fri, 13 Nov 2009 12:43:00 GMT

Consider this scenario: You are trying to identify why a query like this is performing poorly: UPDATE table SET column1 = 0 WHERE table .column2 = @Parameter Where the @Parameter is explicitly specified as datatype VARCHAR(10) and the column2 is defined...(read more)

Msg 7399 – OLE DB provider “MSDASQL” - The provider reported an unexpected catastrophic failure

John Daskalakis — Fri, 13 Nov 2009 12:19:00 GMT

Consider this scenario: - You have setup a linked server by using the MSDASQL provider - You are sometimes getting this error: Msg 7399, Level 16, State 1, Line 1 The OLE DB provider "MSDASQL" for linked server "XXXXXX" reported an error. The provider...(read more)

No collector registered for scope: "SetupStateScope” - Message pump returning: 1602

John Daskalakis — Fri, 30 Oct 2009 08:09:00 GMT

Consider this scenario: - You have already installed a SQL Server 2000 instance on a Windows 2003 machine. - You also try to install a SQL Server 2005 instance on the same Windows 2003 machine. - Searching in the hotfix.log and summary.txt log files you...(read more)

Request from IIS 5.0 arrives as anonymous login (‘null’) on SQL Server 2000

John Daskalakis — Fri, 30 Oct 2009 07:47:00 GMT

Recently we did troubleshoot an issue where requests from an IIS 5.0 site arrived as anonymous logins (‘null’) in SQL Server 2000. The ASP.NET application was using IIS 5.0 anonymous authentication for its users to send requests to SQL server 2000. The...(read more)

The SQL server specified in SSIS service configuration is not present or is not available

John Daskalakis — Thu, 15 Oct 2009 13:08:00 GMT

Consider this scenario: - You have setup a SQL Server 2005 failover instance. - You then install SSIS 2005. - When you try to access the MSDB database from inside the Integration Services you get this message: The SQL server specified in SSIS service...(read more)

Test connection failed because of an error in initializing provider (ORA-12154)

John Daskalakis — Mon, 12 Oct 2009 10:33:00 GMT

Consider this scenario: - You have migrated a DTS packages from SQL Server 2000 to SQL Server 2005. - The new SQL Server is installed on a Windows 64-bit machine. - This DTS package is connecting to an Oracle 10G database. - You get this error or something...(read more)

Installing SSIS services after installing SQL Server database engine

John Daskalakis — Mon, 12 Oct 2009 09:09:00 GMT

Consider this scenario: - You have installed SQL Server 2005 and patched it with a Service Pack (in our case it was SP3). - Then you install SSIS on the same box, but do not patch it with any Service Pack. - Specifically you get this error when you try...(read more)

Error with event id of 17052 reports Access Violation

John Daskalakis — Thu, 30 Jul 2009 15:18:00 GMT

Now this is one was a thrilling issue! Consider the following scenario: You have a SQL 2000 SP4 server running on Windows 2000 SP4 server. After you install some updates, you get an error like this error reported in the event viewer: Event Id 17052 –...(read more)

Error 5042 (000013b2) when trying to failover an Exchange cluster group

John Daskalakis — Tue, 28 Jul 2009 16:29:00 GMT

Recently we came across an interesting issue. When trying to failover an exchange cluster group, the operation failed with error : "The cluster node was not found", Error ID:5042 (000013b2) This problem has two common causes: 1. One common cause is that...(read more)

How to add an additional node to a SQL Server failover cluster

John Daskalakis — Mon, 27 Jul 2009 14:40:00 GMT

Sometimes a two-node cluster configuration is not enough for your SQL Server, as you may want to create new SQL instances, which will reside in a different node than the existing SQL instances. So in this case you may want to add a 3 rd or a 4 th node...(read more)

URL Rewrite Module may not work as expected when redirecting to file://

John Daskalakis — Wed, 08 Jul 2009 11:29:00 GMT

The URL Rewrite Module is part of the Microsoft Application Request Routing for IIS 7: Microsoft Application Request Routing Version 1 for IIS 7 (x86) http://www.iis.net/downloads/default.aspx?tabid=34&i=1709&g=6 Maybe you have been trying to...(read more)

Recovery of database 'XXXXXXXXX' (X) is X% complete

John Daskalakis — Mon, 06 Jul 2009 14:29:00 GMT

Recently I received a question regarding SQL Server database Analysis and Recovery. It seems that a pretty huge database got into recovering mode, due to a huge transaction that was taking place, when suddenly the disk ran out of space and the transaction...(read more)

How to identify the version of Sharepoint you are using

John Daskalakis — Mon, 06 Jul 2009 13:38:00 GMT

At first glance, this seems to be a very simple question, but after a long research in the internet I could not find a clear answer!!! Thankfully, one of my colleagues had the answer and shared it with me :) Strange as it may seem, there are actually...(read more)

How to allow a user to view a file over a network share, but at the same time stop him from copying this file?

John Daskalakis — Mon, 06 Jul 2009 12:04:00 GMT

Recently we had a strange support request that had never occurred to me before: “Is there any combination of NTFS and share permissions that would allow a user to view a video file over a network share, but at the same time stop this user from copying...(read more)

How to export events from SQL Server 2005 and send them to the Windows Event Viewer Log

John Daskalakis — Mon, 06 Jul 2009 11:17:00 GMT

Recently I was asked how to export events from a SQL Server 2005 and send them to the Event Viewer Log, so that the SCOM administrator could see these events. As I found out, there existed no “out of the box” solution for SQL Server 2005. The workaround...(read more)