Defining An Event Inside Of An Assembly =&&> UNSAFE (no Workarounds?)
Oct 20, 2006
Can someone verify that an assembly containing an interface with an event definition, such as...
public interface A {
event EventHandler Foo;
}
... can never be loaded under SAFE or EXTERNAL_ACCESS ?
It appears that the compiler-generated add_xxx and remove_xxx have the MethodImpl(MethodImplOptions.Synchronized) attribute defined by default, and "Explicit synchronization is not allowed". The same limitation also applies to classes by default, although technically one is able to define the implementation directly (clearly not ideal).
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Feb 3, 2006
I try to create assembly with UNSAFE permissions.
I granted "unsafe assembly" to my login, set TRUSTWORTHY property ON.
Now I have this error:
Could not obtain information about Windows NT group/user <MyDomain>/<MyName>, error code 0x5. (Microsoft SQL Server, Error: 15404).
How to resolve this?
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Feb 27, 2007
Greetings...
I'm trying to create an "unsafe assembly":
USE master
GO
CREATE ASYMMETRIC KEY StoredProcedures_dll_Key
FROM EXECUTABLE FILE = 'C:Documents and SettingsAll UsersDocumentshunterStoredProcedures.dll';
CREATE LOGIN StoredProcedures_dll_Login
FROM ASYMMETRIC KEY StoredProcedures_dll_Key;
GRANT EXTERNAL ACCESS ASSEMBLY TO StoredProcedures_dll_Login;
GO
USE gfx_sa
GO
CREATE ASSEMBLY hunter_storedProcedures
FROM 'C:Documents and SettingsAll UsersDocumentshunterStoredProcedures.dll'
WITH PERMISSION_SET = UNSAFE;
GO
CREATE PROCEDURE [dbo].[hunter_storedProcedure1]
(
@symbol_id as int
)
AS EXTERNAL
NAME hunter_storedProcedures.StoredProcedures.StoredProcedure1
GO
But on 'CREATE ASSEMBLY" clause I'm getting error:
Msg 0, Level 11, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.
Msg 0, Level 20, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.
Assembly is signed by Visual Studio.
What's wrong?
Best regards...
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Jan 26, 2006
I created a SQL Server Project in VS 2005, and tried to add a reference to SQLDMO Object dll. But the reference --> add reference, does not allow it. It does not work, even if I set the Assembly Permission Level to UNAFE/EXTERNAL ACCESS.
Reason I'm trying to do this:
We have a SQL 2000 stored procedure that uses SQLDMO using sp_OACreate to BCP files to database. We are converting to 2005 and because of SOX restrictions, I'm trying to replace the sp_OACreate part with external stored procedure written in C#.
According to BOL, I thought atleast UNSAFE should support this, but it seems not.
Probably, I'm expecting too much..
Your help is greatly appreciated.
Thanks
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Sep 19, 2007
Hello,
I think I have some kind of permission problem. But first things first:
I have code which I would like to run in SQL Server (CLR Integration). First thing is that my code uses third-party-dll. I have to deploy my code as unsafe because of
"
CREATE ASSEMBLY failed because method "add_FunctionAdd" on type "USP.Express.Pro.FunctionsCollection" in safe assembly "USP.Express.Pro.2.0" has a synchronized attribute. Explicit synchronization is not allowed in safe assemblies.
"
Of course I can not create "asymmetric key" for third-party-dll (Or can I?).
So, I tried to use trustworthy DB. But I get all the time error Msg 10327: "Assembly is not authorised for PERMISSION_SET=UNSAFE"
I am using Windows Login to log on Sql Server. Login is granted "Unsafe assembly" and DB has trustworthy setting "on".
Login has server roles "sysadmin" and "securityadmin".
Login is mapped with DB User who has same name ( DOMAINUserName ) and has default schema "dbo".
Login has DB memberships "db_owner" and "db_securityadmin".
DB user owns schemas "db_owner" and "db_securityadmin".
Am I missing something?
Interesting thing is that I can do deployment (as unsafe assembly) in master-database. But not in the other databases.
Questions are:
- Is there other way to authorise third-party-dll than using trustworthy?
- Why deployment can be done in master-database?
And finally:
- Why deployment can not be done in other database?
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Jun 21, 2006
When the CLR function executes "CREATE ASSEMBLY" the following error is thrown.
"Could not impersonate the client during assembly file operation."
The CLR function is invoked from Service Broker internal activation stored procedure.
"SELECT user_name()" returns dbo just before CREATE ASSEMBLY execution.
SqlContext.WindowsIdentity.Name is "NT AUTHORITYSYSTEM" as the Data Engine runs with the LocalSystem account.
How do I create a the necessary security context for "CREATE ASSEMBLY" to succeed ?
Service Broker Queue activation with EXECUTE AS = "SELF", "OWNER", domain account or dbo, all result in the above error. The Service Broker assembly having the internal activation stored procedure is registered "unsafe".
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Oct 8, 2015
I have a Custom .net assembly which retrieves some data, basically just a set of data containing, ID, value,
I need my stored procedure to return this data as a table.
My question what/how is fastest way to do this, my assembly can return anything you want, a datatable, a hashtable, list of(class) etc..
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Feb 22, 2008
I work with February CTP of SqlServer 2008.
I have an Assembly with several UDTs inside. Version of assembly is 1.0.*
I use CREATE ASSEMBLY statement to register this assembly, and it runs without any errors. Then I rebuild CLR solution without doing any changes in source code. In that case the only difference between new and old assemblies is version (difference in fourth part of version).
Then I try to update assembly in SqlServer. I use
ALTER ASSEMBLY <name>
FROM <path>
WITH PERMISSION_SET = UNSAFE, UNCHECKED DATA
statement for this. Statement runs with error:
Msg 6509An error occurred while gathering metadata from assembly €˜<Assembly name>€™ with HRESULT 0x1.
I found the list of condition for ALTER ASSEMBLY in MSDN:
ALTER ASSEMBLY statement cannot be used to change the following:
· The signatures of CLR functions, aggregate functions, stored procedures, and triggers in an instance of SQL Server that reference the assembly. ALTER ASSEMBLY fails when SQL Server cannot rebind .NET Framework database objects in SQL Server with the new version of the assembly.
· The signatures of methods in the assembly that are called from other assemblies.
· The list of assemblies that depend on the assembly, as referenced in the DependentList property of the assembly.
· The indexability of a method, unless there are no indexes or persisted computed columns depending on that method, either directly or indirectly.
· The FillRow method name attribute for CLR table-valued functions.
· The Accumulate and Terminate method signature for user-defined aggregates.
· System assemblies.
· Assembly ownership. Use ALTER AUTHORIZATION (Transact-SQL) instead.
Additionally, for assemblies that implement user-defined types, ALTER ASSEMBLY can be used for making only the following changes:
· Modifying public methods of the user-defined type class, as long as signatures or attributes are not changed.
· Adding new public methods.
· Modifying private methods in any way.
But I haven€™t done any changes in source code, so new version of assembly satisfies all this conditions.
What could be the reason for such behavior?
P.S. I€™ve got the same error, if I add or change any method in assembly before rebuilding.
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Feb 29, 2008
I am trying to get a function I created in VB 5 for Access and Excel to work in SQL 2005. I was able to update the old VB code to work in VB 2005. I compiled and made a .dll, and I was able to register the new Assembly in SQL Server. When I try to create the Function, I get an error:
CREATE FUNCTION dbo.Temperature(@FluidName char, @InpCode Char, @Units Char, @Prop1 varchar, @Prop2 varChar)
RETURNS VarChar
AS EXTERNAL NAME FluidProps.[FluidProps.FluidProperties.Fluids].Temperature
Error returned:
Msg 6573, Level 16, State 1, Procedure Temperature, Line 21
Method, property or field 'Temperature' of class 'FluidProps.FluidProperties.Fluids' in assembly 'FluidProps' is not static.
Here is the code (part of it) in the VB class:
Header:
Imports Microsoft.SqlServer.Server
Imports System.Data.SqlClient
Imports System.Runtime.InteropServices
Imports System.Security
Imports System.Security.Permissions
Namespace FluidProperties
'Option Strict Off
'Option Explicit On
Public Partial Class Fluids
Function:
Function Temperature(ByRef FluidName As Object, ByRef InpCode As Object, ByRef Units As Object, ByRef Prop1 As Object, Optional ByRef Prop2 As Object = Nothing) As Object
Call CalcProp(FluidName, InpCode, Units, Prop1, Prop2)
Temperature = ConvertUnits("-T", Units, T, 0)
End Function
If I change the Function Temperature to Static, I get an error that functions cannot be Static. Its been a long time since I created the code and am having a hard time in my older age of getting the cobwebs out to make it work.
I have no problem getting the function to work if I call it from a VB form....so what do I need to do to get it to work on data in my SQL server?
Thanks
Buck
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Jan 12, 2006
I previously had an ASP.NET 1.1 site running on my IIS 6.0 server (not the default website) with Reporting Services running in a subdirectory of that website. I recently upgraded to ASP.NET 2.0 for my website and was greeted with an error when trying to view a report. The error was very non-descript, but when I checked the server logs, it recorded the details as "It is not possible to run two different versions of ASP.NET in the same IIS process. Please use the IIS Administration Tool to reconfigure your server to run the application in a separate process."
First of all, I could not figure out where and how to do this. Secondly, I decided to try to also change the Reporting Services folders to run ASP.NET 2.0 and when I did, I was greeted with the following message when attempting to view a report:
"Failed to load expression host assembly. Details: StrongName cannot have an empty string for the assembly name."
Please help.
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Nov 26, 2002
All our SQL 7 and 2000 servers here run SQLMail for alerting and notifications (via jobs and DTS packages) and we are increasingly having the issue where MAPI32 goes to 100% CPU utilisation and the server needs rebooting.
We are getting the response from Microsoft that "this happens" - hmmm
Anyone else having this problem come up with a solution or workaround at all?
Regards
Jason
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Jul 3, 2007
I have been looking over the forums looking for answers to the question that nails us all: how do you dynamically resize column widths? MS says: you don't. However, I have heard many people say they have found ways around it. I wonder if anyone might share those with me (and everyone else). Share the wisdom you have gained with those less experienced!
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Aug 2, 2006
Hi
I am a bit paranoid about what I just did to my SQL Server 2005 with this CLR experiment.
I created a Class Lib in C# called inLineLib that has a class Queue which represents an object with an ID field.
in another separate namespace called inLineCLRsql, I created a class called test which will hold the function to be accessed from DB, I referenced and created an instances of the Queue class, and retrieve it's ID in a function called PrintMessage.
namespace inlineCLRsql{
public static class test{
public static void PrintMessage(){
inLineLib.Queue q = new inLineLib.Queue();
int i = q.queueId ;
Microsoft.SqlServer.Server.SqlContext.Pipe.Send(i.ToString());
}
}
}
to access this from the db, I attempted to create an assembley referencing inLineCLRsql.dll. This didn't work as it complained about inLineLib assembly not existing in the db. I then attempted to create an assembley for inLineLib but it barfed saying System.Management assembly not created.
so what I did is (and this is where I need to know if I just ruined sql server or not):
1- ALTER DATABASE myDB SET TRUSTWORTHY ON;.
2- CREATE ASSEMBLY SystemManagement
FROM 'C:WINDOWSMicrosoft.NETFrameworkv2.0.50727System.Management.dll'
WITH PERMISSION_SET = UNSAFE
3- CREATE ASSEMBLY inLineLibMaster
FROM 'D:inLineServerinLineLibinDebuginLineLib.dll'
WITH PERMISSION_SET = unsafe
4- and finally
CREATE ASSEMBLY inLineLib
FROM 'D:inLineServerCLRSQLinlineCLRsqlinDebuginlineCLRsql.dll'
WITH PERMISSION_SET = SAFE
Everything works after those steps (which took some trial and error). I can create a sproc like:
CREATE PROC sp_test AS
EXTERNAL NAME inLineLib.[inlineCLRsql.test].PrintMessage
and it returns the Queue ID
Is there anything unadvisable about the steps above?
Thanks for your help
M
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Sep 23, 2005
I have copied a long dataflow from one package to another (I wish I could reuse it without copying & pasting it, and thereupon being required to maintain two copies).
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Jun 13, 2007
I had to create an invoice report, where there is a stub on the buttom of the last page.
I need a report footer and RS does not have it.
I talked to Microsoft about it, here is the full emails between me and Microsoft.
hope this helps
Read from buttom to top
--------------------------------
Hi Ronnie
Sorry I was late in getting back to you as I was out of the office in the last couple of days
I made some checks and it seems the problem that you have is a genuine one.
The workarounds that you specified are the only solutions available now.
I checked with the development team and even though they are aware of the problem, they told me that there won€™t be changes to fix it in SQL 2008
So you have to decide on one of the workarounds that you specified
Best Regards,
Hi Tamer,
I wonder if you had any updates on our issue with RS2005.
Thanks,
Thanks for your help on this issue, I am going to more research on your solution (moving the footer to the body).
Meanwhile, I be looking forward for your sample as well.
Thanks again for all your efforts.
Ronnie Peretz
Hi neil
I think there is a way to implement your need in Reporting Services
Reporting Services has a free form designer which means that whatever you put on the report will appear in the same order in the final view. This is why we don€™t have a report footer.
Instead of putting the stub in the footer, just put it after the last item.
You can use a list dataregion to make sure that the stub will always appear at the bottom of the page in the expected location
Ronnie, I hope that solves your problem
Contact me directly if you need more info on how to implement this
Best Regards,
Tamer Farag
Here are all the facts I learned about Reporting Services "Report Footer" limitations and workaround I have tried.
Objective: On the last page of an invoice at the bottom of the last page have a stub of the invoice:
Issue: Reporting Services does not support Report Footer only Page Footer. (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1439673&SiteID=1)
Work around that I have tried:
Work around 1:
I have created a page footer with a rectangle and set the Visibility expression to =Globals.PageNumber < Globals.TotalPages
Results: The page footer did show up only in the last page, but created a block of space in the first pages.
I was trying to see if there is a way to suppress the spaces from the first pages, and found out it's not supported in Reporting Services
This behavior where the report body would consume the space of the empty page header & footer is currently not supported.
-- Robert (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=340650&SiteID=1)
Work around 2:
I tried to fit all the footer objects in the rectangle in a very small height range, hoping it will auto grow at run time. That did not work as well.
The textboxes did auto grow, but the Rectangle object or the Page Footer itself does not auto grow, cause to cut the footer information.
Work around 3:
Set the property on the page footer PrintOnFirstPage to False, and PrintOnLastPage = True, Reporting services does print the footer in pages in between.
works great for reports that have only 2 pages, but not not more then 2 pages
Best workaround:
Instead of having a space block at the bottom of each page, have a marketing text on every page except the last page
I had overlap a textbox on top of the rectangle (in the page footer) and having this expression on the Visibility =Globals.PageNumber = Globals.TotalPages.
For most of the invoices which are one page, that text will not show up and the Invoice stub will show up
For Invoices which are two pages or more, the marketing text will show up in the first pages only and in the last page the Invoice stub will show.
note: this workaround cause a warning saying "Overlapping report items are not supported in all renderers."
but it is supported for PDF.
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Apr 25, 2008
Having a difficult time setting up a development environment and a set of standards for SSIS package development.
First of all, you can't run the dataflow object "SQL Server Destination" in BIDS because BULKCOPY can only be run from the actual server. So how do you test/debug a package with this object in it?
Second of all, if you create an SSIS package on a developer computer in BIDS, and then import it into the SSIS package store on your development SQL server, you can't run the package from Management Studio on the developer PC. You get the error "DTS_E_PRODUCTLEVELTOLOW" when it tries to run any of the SSIS. Do I have to have SSIS installed on the developer client machine? How do I do that without installing a full server instance on each client machine (not to mention the licsense issues)?
Lastly, what protection level would you suggest using for production? We are having issues with ODBC connection passwords being decrypted and thus package steps failing in using "EncryptSensitiveWithUserKey". What exactly does this protection level do? Our network is physically very locked down, so we arent worried about SSIS package security too much, just looking for a way for them to work reliably without having to setup complicated security scenarios.
thanks for your time.
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Mar 2, 2008
1) if our .net app (oltp) is changed to ask sql for encryption (rather than thru .net) on server A, can server B where our wh resides, thru a linked server run an sp remotely on A and get A to provide decryption thru the keys defined there?
2)can the encryption keys etc defined on one server be imported to another server and still behave exactly the same way on the 2nd server as they do on the first? ie decrypt data originally encrypted by the first successfully.
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May 1, 2008
We have written a test CRL stored procedure to test replacing one of our complex stored procedures but can€™t get it deployed to our SQL server that hosts a mirrored configuration of our production database (very locked down). It works fine on our development instances (not very locked down). It only references the default assemblies that were added when we created the project. All it does is use Context Connection=true to get data, loops though some records and returns the data using SQLContext. CLR is enabled on SQL server, the assembly is strongly signed, and we tried deploy using the binary string with the SAFE setting.
CREATE ASSEMBLY for assembly 'SQLCLRTest2' failed because assembly 'SQLCLRTest2' failed verification. Check if the referenced assemblies are up-to-date and trusted (for external_access or unsafe) to execute in the database. CLR Verifier error messages if any will follow this message
[ : SQLCLRTest2.StoredProcedures::GetLift][mdToken=0x600001e] Type load failed.
[token 0x02000008] Type load failed.
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Sep 4, 2007
I've seen a couple of posts in this forum on this subject. If anyone knows of a workaround it would be great to hear.
The problem is this. I'm writing a component that looks a bit like an OLE DB destination: it writes to something that looks like a table. During design time I want the component to update the list of available destination columns if they change - so I want Validate to return VS_NEEDSNEWMETADATA if it detects a change. However during runtime I only want to validate that the component will run ok. So I still want to check what the destination looks like but if, say, someone has just added a column then my determination is it is ok to procede with the execution.
ValidateExternalMetadata doesn't help in this case because I still want to validate against the destination. I just don't want to raise VS_NEEDSNEWMETADATA during runtime because it aborts execution and I can determine that although there is a change to the destination it is not one that will cause the component to fail.
Any thoughts and experience on this would be great to hear!
Martin
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Jul 27, 2006
I tried to create a sp on one of the databases on my lap top and got this: Pls help i need it bad
Msg 10314, Level 16, State 11, Procedure ap_Hello, Line 5
An error occurred in the Microsoft .NET Framework while trying to load
assembly id 65695. The server may be running out of resources, or the
assembly may not be trusted with PERMISSION_SET = EXTERNAL_ACCESS or
UNSAFE. Run the query again, or check documentation to see how to solve
the assembly trust issues. For more information about this error:
System.IO.FileLoadException: Could not load file or assembly
'vbtriggers, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or
one of its dependencies. An error relating to security occurred.
(Exception from HRESULT: 0x8013150A)
System.IO.FileLoadException:
at System.Reflection.Assembly.nLoad(AssemblyName fileName, String
codeBase, Evidence assemblySecurity, Assembly locationHint,
StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean
forIntrospection)
at System.Reflection.Assembly.InternalLoad(AssemblyNa me assemblyRef,
Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean
forIntrospection)
at System.Reflection.Assembly.InternalLoad(String assemblyString,
Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean
forIntrospection)
at System.Reflection.Assembly.Load(String assemblyString)
The statement has been terminated.
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Oct 3, 2006
To set up a managed sproc to act as a WSE 3.0 web service client I had to register the following .Net DLLs as UNSAFE assemblies:
System.Configuration.Install.dll
System.Web.dll
Microsoft.Web.Services3.dll
In order to register UNSAFE assemblies I had to set the database's TRUSTWORTHY property to 'true'.
Can anyone tell me what are the implications of doing this?
Thanks,
Max
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Feb 27, 2007
For registering UNSAFE assemblies, we have to sign the dll and register it in SQL 2005. Also, the permission needs to be granted to a login..
Example code;
CREATE ASYMMETRIC KEY MyKey FROM EXECUTABLE FILE = 'C:AssembliesInterop.SQLDMO.dll'
CREATE LOGIN MyLogin
FROM ASYMMETRIC KEY MyKey
GRANT UNSAFE ASSEMBLY To MyLogin
What is the purpose of creating this MyLogin and how it serves to access the unsafe assembly.
Can anyone throw more light on this.
Thanks
Baskar
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Jul 4, 2007
Hello,
I develop a database that notifies clients when data changes by sending an UDP broadcast message using an extended stored procedure. Now I want to use a CLR stored procedure to send the UDP broadcast instead:
using System;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
using System.Net.Sockets;
public partial class UserDefinedFunctions
{
[SqlProcedure]
public static void UdpSend(SqlString address, SqlInt32 port, SqlString message)
{
System.Net.Sockets.UdpClient client = new System.Net.Sockets.UdpClient();
byte[] datagram = message.GetUnicodeBytes();
client.Send(datagram, datagram.Length, (string)address, (int)port);
}
};
I have found that to be allowed to send to 255.255.255.255 I must give the assembly permission set 'Unsafe'. If I change to 'External access' I get:
Msg 6522, Level 16, State 1, Procedure UdpSend, Line 0
A .NET Framework error occurred during execution of user defined routine or aggregate 'UdpSend':
System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
System.Security.SecurityException:
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.CodeAccessPermission.Demand()
at System.Net.Sockets.Socket.CheckSetOptionPermissions(SocketOptionLevel optionLevel, SocketOptionName optionName)
at System.Net.Sockets.UdpClient.CheckForBroadcast(IPAddress ipAddress)
at System.Net.Sockets.UdpClient.Send(Byte[] dgram, Int32 bytes, String hostname, Int32 port)
at UserDefinedFunctions.UdpSend(SqlString address, SqlInt32 port, SqlString message)
I cannot use permission set 'Unsafe' in production environment, so what I want is to customize the effective permissions with higher resoloution than the three pre-defined permission sets 'Safe', 'External access' and 'Unsafe'. Except from what is allowed by 'Safe' I only want the permissions necessary to send an UDP broadcast.
Anyone who has something like this ?
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Sep 27, 2006
Hello, everyone.
I have to make a gateway to access third-party closed-source native-code COM objects. As an interface, SQL Server stored procedures are absolutely perfect for my needs. I decided to use SQL Server 2005 CLR rather than using deprecated extended stored procedures or accessing COM objects directly through SQL Server. (This decision is aided by the fact that the third party has plans to make a .NET version of their COM objects "really soon now" (i.e.: not soon enough). Backporting their new interface to my abstraction layer will be very simple.)
I'm having problems using these COM objects from my SQL Server 2005 CLR stored procedure. When I try to run my stored procedure, I get the error below. It appears that SQL Server/CLR refuses to perform the disk access necessary to load the COM object from disk so that it can instantiate it. (My message continues after the error.)
Msg 6522, Level 16, State 1, Procedure MyStoredProcedure, Line 0
A .NET Framework error occurred during execution of user defined routine or aggregate 'MyStoredProcedure':
System.IO.FileLoadException: LoadFrom(), LoadFile(), Load(byte[]) and LoadModule() have been disabled by the host.
System.IO.FileLoadException:
at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoadFrom(String assemblyFile, Evidence securityEvidence, Byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm, Boolean forIntrospection, StackCrawlMark& stackMark)
at System.Reflection.Assembly.LoadFrom(String assemblyFile, Evidence securityEvidence, Byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm)
at System.Activator.CreateComInstanceFrom(String assemblyName, String typeName, Byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm)
at System.Activator.CreateComInstanceFrom(String assemblyName, String typeName)
at UserDefinedFunctions.MyStoredProcedure()
.
I'll outline the steps I performed so far to get the assembly working:
Ensured I was running at SQL Server 2005 compatibility level. (90)
- Installed and configured the third-party COM objects on my devel box and my DB box. They registered themselves properly.
- Enabled CLR in the DB.
- Made sure the DB owner has UNSAFE ASSEMBLY permission.
- Added the TRUSTWORTHY property to the DB. (Yes, this isn't the "correct" way to do it, but I didn't want to deal with code-signing voodoo. Apologies to actual believers in voodoo.)
- Created an Unsafe assembly "MyAssembly" in SQL Server 2005 and Visual Studio 2005.
- Created all the necessary Interop assemblies (by creating a normal (non-SQL) C# project and building my code, and raiding the bin directory).
- Added these Interop assemblies to SQL Server 2005 as Unsafe assemblies.
- In VS2005, built my SQL Project code and deployed successfully.
- Tried running my stored procedure through a Query window, and I got the error above.
I've done many searches. All of the results I've found concern themselves with Web Services and XML serialization, and suggest using sgen.exe. I don't think they're relevant to my problem. A few said I should add my COM DLLs as assemblies to SQL Server, but that is impossible for native code DLLs. I found something that hinted at tblexp.exe, but I didn't understand how that could help me. I already figured out a way to get me the Interop libs.
Efforts at solving:
- Reading webpages for hours on end.
- I tried using sgen.exe to create the XML serialization assembly, but it didn't help.
- I tried adding various native-code DLLs directly as SQL Server assemblies, but you can bet it didn't like that.
- A few other pitiful attempts not worth mentioning.
- Reading this forum. I didn't see anything that applied.
- Posting here.
I really wish Microsoft had meant what they said when they stated that "Unsafe" assemblies can access anything, instead of trying to protect developers from their folly.
Any insights on getting those COM objects to work in my CLR stored procedure? Thank you.
-Tony Flay
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Jun 2, 2015
Recently we migrated our environment to 2012.
We are planning to implement Xevents in all the servers in place of Trace files and everything is working fine.
Is it possible to configure Extended event to trigger a mail whenever any event (example dead lock) occurs.
I have gone through so many websites but i never find.
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Oct 25, 2011
My SQL Server 2005 SP4 on Windows 2008 R2 is flooded with the below errors:-
Date  10/25/2011 10:55:46 AM
Log  SQL Server (Current - 10/25/2011 10:55:00 AM)
Source  spid
Message
Event Tracing for Windows failed to send an event. Send failures with the same error code may not be reported in the future. Error ID: 0, Event class ID: 54, Cause: (null).
Â
Is there a way I can trace it how it is coming? When I check input buffer for these ids, it looks like it is tracing everything. All the general application DMLs are coming in these spids.
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Apr 8, 2008
I have been testing with the WMI Event Watcher Task, so that I can identify a change to a file.
The WQL is thus:
SELECT * FROM __InstanceModificationEvent within 30
WHERE targetinstance isa 'CIM_DataFile'
AND targetinstance.name = 'C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Backup\AdventureWorks.bak'
This polls every 30 secs and in the SSIS Event (ActionAtEvent in the WMI Task is set to fire the SSIS Event) I have a simple script task that runs a message box).
My understanding is that the event polls every 30 s and if there is a change on the AdventureWorks.bak file then the event is triggered and the script task will run producing the message.
However, when I run the package the message is occurring every 30s, meaning the event is continually firing even though there has been NO change to the AdventureWorks.bak file.
Am I correct in my understanding of how this should work and if so why is the event firing when it should not ?
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May 31, 2007
I am trying to deploy a Database Project with Visual Studio 2005 and SQL Server 2005 Standard.
I import €œSystem.IO€? and have therefore set the permission levels to EXTERNAL_ACCESS.
I am receiving the same error message that many folks have received.
CREATE ASSEMBLY for assembly 'Images' failed because assembly 'Images' is not authorized for PERMISSION_SET = EXTERNAL_ACCESS.
The assembly is authorized when either of the following is true: the database owner (DBO) has EXTERNAL ACCESS ASSEMBLY permission and the database has the TRUSTWORTHY database property on; or the assembly is signed with a certificate or an asymmetric key that has a corresponding login with EXTERNAL ACCESS ASSEMBLY permission. If you have restored or attached this database, make sure the database owner is mapped to the correct login on this server. If not, use sp_changedbowner to fix the problem. Images.
My CLR access is €œon€?
I have tried
1) From master run: GRANT EXTERNAL ACCESS ASSEMBLY to [BuiltinAdministrators].
2) From master run: GRANT EXTERNAL ACCESS ASSEMBLY to €œMy Windows Authentication ID€?.
3) Run ALTER DATABASE MYDATABASE SET TRUSTWORTHY ON
4) In Visual Studio .NET 2005 Set the permission levels to €˜external€™
5) Tried BuiltinAdministrators and my SQL Server Windows Authenticated Login ID for the ASSEMBLY OWNER.
I can compile BUT NOT DEPLOY
Any help would be greatly appreciated.
Regards Steve
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Mar 8, 2006
I was trying to understand how VS.NET2005 was deploying .NET CLR assemblies to SQL2005 so I ran a trace and found some interesting results.
VS.NET creates some SQL that looks pretty interesting:
CREATE ASSEMBLY [AssemblyNameHere]
FROM 0x4D5A90000300000004000000FFFF000......<continue binary data>
WITH PERMISSION_SET = EXTERNAL_ACCESS
Boy howdy!
I have tried to reproduce this and create my own deployment application but I cant figure out how they create this binary stream. The info in BOL is not much help and I have not found any samples anywhere on how to create this stream in c#.
Anyone out there been able to get this to work?
-Ben
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May 31, 2007
Server 2003 SE SP1 5.2.3790 Sql Server 2000, SP 4, 8.00.2187 (latest hotfix rollup)
We fixed one issue, but it brought up another. the fix we applied stopped the ServicesActive access failure, but now we have a failure on MSSEARCH. The users this is affecting do NOT have admin rights on the machine, they are SQL developers.
We were having
Event Type: Failure Audit
Event Source: Security
Event Category: Object AccessEvent ID: 560
Date: 5/23/2007
Time: 6:27:15 AM
User: domainuser
Computer: MACHINENAME
Description:
Object Open:
Object Server: SC Manager
Object Type: SC_MANAGER OBJECT
Object Name: ServicesActive
Handle ID: -
Operation ID: {0,1623975729}
Process ID: 840
Image File Name: C:WINDOWSsystem32services.exe
Primary User Name: MACHINE$
Primary Domain: Domain
Primary Logon ID: (0x0,0x3E7)
Client User Name: User
Client Domain: Domain
Client Logon ID: (0x0,0x6097C608)
Accesses: READ_CONTROL
Connect to service controller
Enumerate services
Query service database lock state
Privileges: -
Restricted Sid Count: 0
Access Mask: 0x20015
Applied the following fix
http://support.microsoft.com/kb/907460/
Now we are getting
Event Type: Failure Audit
Event Source: Security
Event Category: Object Access
Event ID: 560
Date: 5/23/2007
Time: 10:51:23 AM
User: domainuser
Computer: MACHINE
Description:
Object Open:
Object Server: SC Manager
Object Type: SERVICE OBJECT
Object Name: MSSEARCH
Handle ID: -
Operation ID: {0,1627659603}
Process ID: 840
Image File Name: C:WINDOWSsystem32services.exe
Primary User Name: MACHINE$
Primary Domain: domain
Primary Logon ID: (0x0,0x3E7)
Client User Name: user
Client Domain: domain
Client Logon ID: (0x0,0x60D37C1A)
Accesses: READ_CONTROL
Query service configuration information
Query status of service
Enumerate dependencies of service
Query information from service
Privileges: - Restricted Sid Count: 0 Access Mask: 0x2008D
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Nov 2, 2007
Hi all,
Can we get the event properties by using a query?
Are there any extended stored procuder to get the above?
Scenario:
>Desktop>Right Click on My Computer
>Go to Manage and click
>Expand System Tools
>Expand Event Viewer
>Application
click on one event.We can get the log info which is the manual procudure.
But now i want to get the event properties through the Query analyzer...
Any help would be great?
Thanks,
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Sep 12, 2007
For inserting current date and time into the database, is it more efficient and performant and faster to do getDate() inside SQL Server and insert the value
OR
to do System.DateTime.Now in the application and then insert it in the table?
I figure even small differences would be magnified if there is moderate traffic, so every little bit helps.
Thanks.
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Mar 24, 2008
Hi,I have a table with uniqueidentifier column as its primary key. If I insert a record into this table by defining the key of this record in VB code (Dim myId As Guid = Guid.NewGuid ... is it??), is it possible that I receive the primary key violation error since the new record has an id which is already exists in the table? Thanks in advance
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