Call .NET Web Service From SQL Server

May 3, 2004

Hi,
I have a situation where I need to call a web service from the database (by an insert trigger on a table). Please let me know how I could do this.
Thanks in advance
Raj

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What Permissions Are Required For SQL Server Service Account To Call Web Service Using CLR Integration?

May 18, 2007

Hello! I have the following problem. I developed CLR Stored Procedure "StartNotification" and deploy it on db. This sp calls external web service. Furthermore, this sp is called according with SQL Server Agent Job's schedule. On my PC SQL Server works under Local System account and this web service is called correctly (Executed as user: NT AUTHORITYSYSTEM). But on ther other server the following exception is raised during job running:
Date 17.04.2007 16:42:10
Log Job History (FailureNotificationJob)

Step ID 1
Server MSK-CDBPO-01
Job Name FailureNotificationJob
Step Name MainStep
Duration 00:00:00
Sql Severity 16
Sql Message ID 6522
Operator Emailed
Operator Net sent
Operator Paged
Retries Attempted 0

Message
Executed as user: CORPmssqlserver.
A .NET Framework error occurred during execution
of user defined routine or aggregate 'StartNotification':
System.Security.SecurityException: Request for the permission of type
'System.Net.WebPermission, System, 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. The step failed.

What is the reason of this behaviour? Unfortunately I do not have direct access to this server.
I have the following guesses:
1) CORPmssqlserver may have not enough permissions to call web service
2) Something wrong with SQL Server account's permissions
2) Something wrong with SQL Server Agent account's permissions
I will take the will for the deed. Thanks.

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Mar 5, 2007

I would like to call a web service from a sql server 2000 s.proc/sql job, but if there is a better way please let me know.  I'm using Captaris Workflow to create and manipulate workflow processes.  I have a sql job that will create some pdf's.  I want to call the web service that creates a new process in a step from that sql job.  I have read about doing this with extended s.procs, but I'm trying to find any possible solutions.  Essentially, the web method I want to call will insert several records into sql so I know I can at least do that.  I would still like to know if I can make a call to the web service from the sql job. Thanks for any help. 

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Aug 30, 2006

Dear fellow developers,

I have successfully developed a Transact-SQL stored procedure which calls a CLR function, which calls a web service. I am using a Visual Studio 2005 SQL Server Project to perform the necessary magic.

Is there a neat way to deploy this stuff to a production server?

It is bad enough deploying the sp and function, but the web server proxy also needs to be changed to refer to the production web service.

This all looks very nasty and complicated.

Am I missing something?

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Jan 4, 2013

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The backup file would be in a location independent of both servers.

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May 4, 2006

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[Web Service Task] Error: An error occurred with the following error message: "Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebserviceTaskException: Could not execute the Web method. The error is: Object reference not set to an instance of an object.. at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebMethodInvokerProxy.InvokeMethod(DTSWebMethodInfo methodInfo, String serviceName, Object connection) at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTaskUtil.Invoke(DTSWebMethodInfo methodInfo, String serviceName, Object connection, VariableDispenser taskVariableDispenser) at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTask.executeThread()".

or


[Web Service Task] Error: An error occurred with the following error message: "Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebserviceTaskException: Could not execute the Web method. The error is: Method 'ProxyNamespace.AWSECommerceService.SellerLookup' not found.. at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebMethodInvokerProxy.InvokeMethod(DTSWebMethodInfo methodInfo, String serviceName, Object connection) at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTaskUtil.Invoke(DTSWebMethodInfo methodInfo, String serviceName, Object connection, VariableDispenser taskVariableDispenser) at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTask.executeThread()".

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Sep 14, 2006

I have two databases with two identical tables in seperate physical locations. I want database B tables to be updated automatically when database A tables change. Is there a way to call a web service from SQL to make this happen? Or is there a better way to do this? I would really like it to get the rows that were modified and then copy only those rows to the other database tables. If anyone knows if this can be done please let me know. Thank you.   

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Feb 16, 2008

With regular .net web services in vb.net I can expose the service and call it like this:


http://server/EnrollmentLookup/EnrollmentService.asmx/GetS3MonitorLogs?StartDate=02/02/08&EndDate=02/05/08

But when I create a SQL XML Webservice via an endpoint all I can find on the net is how to show the wsdl.

http://localhost/Contacts?wsdl

Ive created a method in the "Contacts" webservice called GetContacts. Why cant I construct a similar url to execute that method without having to write a vb.net wrapper for it?

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Call Web Service From The Database

May 3, 2004

Hi,
I have a situation where I need to call a web service from the database (by an insert trigger on a table). Please let me know how I could do this.
Thanks in advance
Raj

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May 21, 2007

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Hello,

I have a microsoft report that uses a dll to calculate a value. If I hard code the value, my report shows it. My method in the dll is connecting to a database in order to calculate a result. However, in order to connect to the database, I am using Microsoft.Practices.EnterpriseLibrary.

The error in my report is:
Could not load file or assembly 'Microsoft.Practices.EnterpriseLibrary.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.

I have added a reference in the report to the EnterpriseLibrary but this has not made a difference.

Many thanks!

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Oct 6, 2006

Hi,

I'm hoping someone has tried something similar before. I am trying to run an integration from a remote computer using a web service. I have set up the web service and the bog standard launch package routine works fine. What i'd like to be able to do is to launch a package and also specify any parameters associated with it. I have the following code which is identcal to the main launch sub with the exception of an extra argument (jagged array of varible name and value variablePair[4][2]). It also processes the variable array and sets them on the DTSPackage object.

[code]
[WebMethod]
public int LaunchSSISPackageWithVariables(string sourceType, string sourceLocation, string packageName, string[][] variableArray)
{
string packagePath;
Package myPackage;
Application integrationServices = new Application();

// Combine path and file name.
packagePath = Path.Combine(sourceLocation, packageName);

switch (sourceType)
{
case "file":
// Package is stored as a file.
// Add extension if not present.
if (String.IsNullOrEmpty(Path.GetExtension(packagePath)))
{
packagePath = String.Concat(packagePath, ".dtsx");
}
if (File.Exists(packagePath))
{
myPackage = integrationServices.LoadPackage(packagePath, null);
}
else
{
throw new ApplicationException("Invalid file location: " + packagePath);
}
break;
case "sql":
// Package is stored in MSDB.
// Combine logical path and package name.
//if (integrationServices.ExistsOnSqlServer(packagePath, ".", String.Empty, String.Empty))
if (integrationServices.ExistsOnSqlServer(packagePath, ".", "executeSSIS", "p4ssw0rd"))
{
//myPackage = integrationServices.LoadFromSqlServer(packageName, "(local)", String.Empty, String.Empty, null);
myPackage = integrationServices.LoadFromSqlServer(packageName, "(local)", "executeSSIS", "p4ssw0rd", null);
}
else
{
throw new ApplicationException("Invalid package name or location: " + packagePath);
}
break;
case "dts":
// Package is managed by SSIS Package Store.
// Default logical paths are File System and MSDB.
if (integrationServices.ExistsOnDtsServer(packagePath, "."))
{
myPackage = integrationServices.LoadFromDtsServer(packagePath, "localhost", null);
}
else
{
throw new ApplicationException("Invalid package name or location: " + packagePath);
}
break;
default:
throw new ApplicationException("Invalid sourceType argument: valid values are 'file', 'sql', and 'dts'.");
}

//Variables var = myPackage.Variables;
//foreach (string key in variablePairs.Keys)
//{
// var[key].Value = variablePairs[key].ToString();
//}

Variables var = myPackage.Variables;

for (int i = 0; i < variableArray.Length; i++)
{
var[variableArray[0]].Value = variableArray[1].ToString();
}

return (Int32)myPackage.Execute();
}
[/code]

For some reason the above code runs and passes back the value that it succeeded. Yet the package doesn't do what it should. Does anyone have any ideas as to why this might be the case or even a better way to pass the variables.

Many thanks,

Grant

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Jun 2, 2006

I currently have the fllowing Stored Procedure. When I pass the the Url of the web service in the parameters, I'm having a sp_OAMethor read response failed error.

I don't know how to pass the parameter as well as the name of the function in the Web Service I'm calling. Maybe I'm all wrong here with this code too?

Thanks for any help.



ALTER PROCEDURE [dbo].[pTAPServiceWeb]

@sUrl varchar(200),

@response varchar(8000) out

AS

DECLARE @obj int

DECLARE @hr int

DECLARE @status int

DECLARE @msg varchar(255)

EXEC @hr = sp_OACreate 'MSXML2.ServerXMLHttp', @obj OUT

IF @hr < 0

BEGIN

RAISERROR('sp_OACreate MSXML2.ServerXMLHttp failed', 16, 1)

RETURN

END

EXEC @hr = sp_OAMethod @obj, 'Open', NULL, 'GET', @sUrl, false

IF @hr < 0

BEGIN

SET @msg = 'sp_OAMethod Open failed'

GOTO err

END

EXEC @hr = sp_OAMethod @obj, 'send'

IF @hr < 0

BEGIN

SET @msg = 'sp_OAMethod Send failed'

GOTO err

END

EXEC @hr = sp_OAGetProperty @obj, 'status', @status OUT

IF @hr < 0

BEGIN

SET @msg = 'sp_OAMethod read status failed'

GOTO err

END

-- IF @status <> 200

-- BEGIN

-- SET @msg = 'sp_OAMethod http status ' + str(@status)

-- GOTO err

-- END

EXEC @hr = sp_OAGetProperty @obj, 'responseText', @response OUT

IF @hr < 0

BEGIN

SET @msg = 'sp_OAMethod read response failed'

GOTO err

END

EXEC @hr = sp_OADestroy @obj

RETURN

err:

EXEC @hr = sp_OADestroy @obj

RAISERROR(@msg, 16, 1)

RETURN

GO

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Feb 9, 2007

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Thanks !!

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Jul 2, 2007

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Thank you,

James Mac William

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Jan 11, 2007

Hi,

I m trying to use the web services task, but when i try to run it i got the following error

[Web Service Task] Error: An error occurred with the following error message: "Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebserviceTaskException: Could not execute the Web method. The error is: Object reference not set to an instance of an object..    at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebMethodInvokerProxy.InvokeMethod(DTSWebMethodInfo methodInfo, String serviceName, Object connection)    at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTaskUtil.Invoke(DTSWebMethodInfo methodInfo, String serviceName, Object connection, VariableDispenser taskVariableDispenser)    at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTask.executeThread()".

This is probably because i never worked with this task, even so, does anyone knows what might be wrong?

I got a connection a wsdl, i can configure the service, method and variables(i use fixed values), and i configure the output to a variable with the type object(i have tryed string and int)

I even can download the wsdl file, but the error seems to be in the connection

Thanks

 

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Apr 2, 2007

We have a requirement to call a Web Service method from SSIS where the method accepts a single parameter that is derived from a database recordset and can exceed 4k characters. From the little we know about the Web Service task it is limited to only accepting direct input and variables. Does anyone have any suggestions to overcoming this issue? Any detailed information in possibly calling the Web Service from script or using an object variable would be extremely appreciated.



Thank you in advance for your help.

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Feb 7, 2007

Hi Remus,

I just started looking into SB about a week ago, so my question is likely to be pretty lame. However, that's not going to stop me from asking it :-)

We're trying to do something similar to what you're describing here. How do you "reset" a dialog timer? Why would you need to deal with resetting timers (or with timers at all for that matter) in the event of a success? Couldn't you rewrite the logic to be as follows?


begin transaction
receive message
if message is web request
save state of request (http address, caller etc)
else if message is retry timer message
load state of request
endif
commit
do the web request (no transaction open)
if success
begin transaction
send back response
end conversation
commit
else
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endif

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TIA.

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Is there any setting in the JDBC driver properties, where I can tell it to open a closed connection (like a retry count), rather than fail the first time and work the second time.

We use
1. SQL SERVER 2005 SP2,
2. Websphere Protal Server 5.1
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I am wondering if connection pool driver is causing this problem. I do not care about connection pooling, but Websphere doen not seem to like any other JDBC Driver. I don't mind switching to another driver as the last option.

Error is :
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at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.checkClosed(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.getCatalog(Unknown Source)
at com.ibm.ws.rsadapter.spi.WSRdbManagedConnectionImpl.getCatalog(WSRdbManagedConnectionImpl.java:676)
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at com.ibm.ws.ffdc.ObjectIntrospectorImpl.dumpContents(ObjectIntrospectorImpl.java:51)
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at com.ibm.ws.ffdc.IncidentStreamImpl.introspectAndWriteLine(IncidentStreamImpl.java:632)
at com.ibm.ws.ffdc.DiagnosticEngine.dumpObjectAndStack(DiagnosticEngine.java:301)
at com.ibm.ws.ffdc.DiagnosticEngine.processIncident(DiagnosticEngine.java:147)
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.......lots of lines


Regards
Bobba

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Hi,

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The results table should look like the one below:





CallRef.

Description

Severity



ProblemRef

Logged
Date

Call
Status

SLA Status



C0001

Approval for PO€™s not received

2



DGE0014

05-01-06 14:48

Resolved

Breach


C0002

PO€™s not published

2



DGE0014

06-01-06 10:21

Resolved

OK


C0003

Approval for PO€™s not received from Siebel.

2



n/a

05-01-06 14:48

Investigating

OK



















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if (due_date < completed_date)
{ sla_status = 'OK';
}
else sla_status = 'Breach';

The Select statement in my query is looking like this...

Select Distinct CallRef, Description, Severity, ProblemRef, Logdate, Status, Due_date, Completed_date;

The problem is that my query is returning multiple entries for each stage of the call (see below), whereas I just want one entry for each call, with SLA status 'Breach' if any of the stages for the call were out of SLA.






CallRef.

Description

Severity



ProblemRef

Logged
Date

Call
Status

SLA Status



C0001

Approval for PO€™s not received

2



DGE0014

05-01-06 14:48

Resolved

Breach


C0001

Approval for PO€™s not received

2



DGE0014

05-01-06 14:48

Resolved

OK


C0001

Approval for PO€™s not received

2



DGE0014

05-01-06 14:48

Resolved

Breach



















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System Log:



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Application Log:



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TDSSNIClient initialization failed with error 0x271d, status code 0xa.



TDSSNIClient initialization failed with error 0x271d, status code 0x1.



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SQL Server could not spawn FRunCM thread. Check the SQL Server error log and the Windows event logs for information about possible related problems.





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Cmd.CommandType = CommandType.StoredProcedure
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Kevin Jin

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