Making Managed Code Calls Inside SQL Server In Context Of The Client

Aug 17, 2006

Dear all,

I am very new to the subject of writing CLR code inside SQL Server, so I apologise if my questions seem naive.

I have a requirement to populate an asp.net 2.0 GridView control with data columns, some of which are directly from a SQL Server 2005 database, but some of which are calculated by calling CLR methods passing the values from the database columns to those methods.

However, the methods I need to call only make sense in the process context of the client web site which is calling the stored procedure which I want to write to return the data columns.

In effect, I want to be able to make a remote procedure call from within the SQL Server CLR code to the methods available in the client process.

Is this possible? If so, could someone please refer me to an example of how to do it.

If it can be done, it opens up lots of very cool possibilities!

Thanks.

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Database Replication Versus Making Remote Calls

Aug 21, 2012

I I work for a small business who has a somewhat successful ecommerce site. Our website is based on some VERY large DB's with 10's of millions of records, and 40+GB of images, so we choose to self host so we could easily manage the data. As things have grown and we've cobbled a fair amount of integration between the website databases and our internal systems. Fast forward 4-5 years, the website has grown to the point that self hosting is costing us a fortune in bandwidth costs, so I'm thinking of moving to a co-location facility. If I do that, I need to send the website tables along with it. Is there a replication stradagy that would allow us to have two independant DB's, both able to take updates that would sync with one another? My other thought is to spit the tables on two different DB's and let some of the data live in the co-location facility.. but I am worried about the performance impact for local users.

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Creating Triggers Using Managed Code In SQL Server 2005

Mar 6, 2008

Hi all( Create a VB 2005 SQL Server Project )

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Mar 11, 2008

All --
Please help.
I am using managed code in SQL Server 2005 and have a question about stored procedure name qualification.
With a VS.NET 2005 Pro Database project, when I use >Build, >DeploySolution, it works great but my stored procedures are named with qualification using my domainusername.ProcName convention, something like this...
XYZ_TECHKamoskiM.GetData
...when I want them to be named with the dbo.ProcName convention, something like this...
dbo.GetData
...and I cannot see where this can be changed.
Do you happen to know?
Please advise.
(BTW, I have tried going to this setting >Project, >Properties, >Database, >AssemblyOwner, and putting in the value "dbo" but that does not do what I want.)
(BTW, as a workaround, I have simply scripted the procedures, so that I can drop them and then add them back with the right names-- but, that is a bit tedious and wasted effort, IMHO.)
Thank you.
-- Mark Kamoski

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Does Sql Server 2005 Enterprise Edition Support Managed Code ?

Aug 4, 2006

Dear friends,

please help,

let me tell you what happens,

1) first i installed Sql Server 2005 Enterprise Edition, everything was working fine except i was not able to create managed objects from BI, like stored procedures, triggers, UDT, etc etc.

2) so i installed VS.net 2005 complete + Sql Server 2005 Express Edition

now i was able to create stored procedures, triggers, etc etc, i'm talking about the CLR objects, ok, i.e. the managed code, but........ i was only able to do this from Sql Server 2005 Express Edition.

whenever i try to create managed objects CLR like stored procedures and stuff from the Sql Server 2005 Enterprise edition it gives me the following error :

"The Sql Server supplied by these connection properties, does not support managed code, please choose a different server"

please help meeeee.. please please, tell me what's the problem ?

below i'm attaching a screenshot of the error....

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Mar 2, 2008

Hi try to connect with driver {SQL Sever Client} but i can't
I'm have SQL Server 2005 Express SP2

Error connecting to the ODBC server:[Microsoft][SQL Native Client][SQL Server] Changed database context to..

Please Help me

Thanks

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May 15, 2008

I have several UDFs created. Inside one of the UDFs I need to execute a dynamic SQL statement and then take that result and do something else with it, before returning the final value.

I know you can not execute a stored proce from inside a function. I also know you can not use the EXEC statement.

I did read that you could use an external stored procedure and/or managed CLR procedures inside a function.

I have created a managed procedure CLR (C#) that simply executes a passed statemetn and returns the value to the calling routine. I have this all coded and is working fine.

However, I am struggling with knowing how to call this CLR procedure from inside my function, seeing how I can not use EXEC statement.

Any advice on how to do this?

Thanks,
Bruce

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Apr 11, 2007

Can anyone explain to me why I would choose one over the other? Please provide some simple examples of when I would choose each. Thanks!

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Nov 20, 2006

I have a SQL Server project in Visual Studio 2005 which deploys an assembly to SQL Server 2005 containing various stored procedures user defined functions. Is there any way to tell Visual Studio to drop/create the stored procedures in a schema other than dbo?

ie: User.ChangePassword instead of dbo.ChangePassword.

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Aug 24, 2007

Hi there,
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How can I create a database trigger that will update the C# Application colllection whenever a table value is updated?

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Apr 19, 2007

There is an interesting article from MSDN Magazine titled "Identify and Prevent Memory Leaks in Managed Code"

http://msdn.microsoft.com/msdnmag/issues/07/01/ManagedLeaks/default.aspx

Are there any additional documents or utilities that people would suggest for monitoring and managing CLR impact on SQL server resources and performance?

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Oct 3, 2006

I have been attempting to create a managed stored procedure which calls a web service using WSE 3.0 for security.

It appears that the WSE-generated config file (or possibly the app.config file) is not accessible to the .Net code.

Is there a method for using config files with CLR managed sprocs?

Thanks,
Max

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Jan 10, 2007

Hi everyone,

Primary platform is Framework 2.0

Our current service throws on-demand .DTSX and now we'd like that will throw old ETL 2000 too.

I'd like to know if success or not success when calling dtspkg.dll from my managed code (vb).
Is it possible or not? I only capture errors for the sake of TRY..END TRY but I don't know how the hell to know
if the dts execution was successful.
Execute method not returns anything.

Currently my schema is the following:

paquete = New DTS.Package2

paquete.LoadFromSQLServer("SRVDESA1", , , DTS.DTSSQLServerStorageFlags.DTSSQLStgFlag_UseTrustedConnection, _
, , , "pruebaenric")

paquete.FailOnError = True

Try
paquete.Execute()

Catch ex As Exception
' stuff
End Try

paquete = Nothing

I've tried to use WITHEVENTS but it's useless at all from there.

Events are not fired. I though that RCW created for this could be able to call them...

Private Withevents paquete as dts.package2

Private paquete_OnError()
stuff
Private paquete_OnProgress()
stuff

Thanks for any input related with,

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Aug 22, 2004

I am trying to debug sql2000 sp from managed code app with VS.Net 2003 archetect Ed..
It did not stop at the break point within the sql sp.
I did granted execute permission for sp_sdidebug.
Do I need to attach any process?

Is there anything left off by the article?
I referenced msdn article option 2: http://support.microsoft.com/default.aspx?kbid=316549

Thanks.

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Jan 23, 2008

Hi,
I have a requirement to create #Temp table in database and insert values to it.

I use following code:

DbCommand dbCreateTable;

dbCreateTable = provider.CreateCommand();

dbCreateTable.Connection = conn;

dbCreateTable.CommandText ="Create table #MyTemp (Id varchar(10))";

dbCreateTable.ExecuteNonQuery();

string[] insertValues = {"Insert into #Mytemp values ('TestString1')",

"Insert into #Mytemp values ('TestString2')"};

DbCommand dbInsertData = provider.CreateCommand();

dbInsertData.Connection = conn;

foreach (String insertStr in insertValues)

{

dbInsertData.CommandText = insertStr;

dbInsertData.ExecuteNonQuery();

}

Code creates the Temp table but when it comes to insert statement, it throws error saying "Temp table not found".
Reason can be Create and Insert statement gets executed as 2 different sessions.
How to get the above requirement work fine?
Thank you.
HV

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Apr 18, 2006

hi

I am trying to store the output of sp-executesql into a variable to implement it as a user defined function later

The function is

ALTER function [dbo].[UnitsAvailable] (@id int)

returns int

as

begin

declare @sql nvarchar(100)

declare @params nvarchar(500)

declare @count nvarchar(10)

set @sql = N'Select count(*) from units where projectid=' + convert(varchar,@id) + 'and sold=0 and displayunit=1'

set @params = N'@countOUT nvarchar(10) OUTPUT';

exec sp_executesql @sql, @params, @countOUT=@count OUTPUT;

return @count

end

The result is that I am able to parameterize the sql end execute with the right result. The only problem is that the value is not stored in the variable @count. I could get to the same result using managed code in sql 2005 but still I am curious to find out where the problem is ....

Can you please help?

Thanks Alex

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Problem With Managed Code Simple Example Target String Size Is Too Small To Represent The XML Instance

Feb 10, 2006

I am trying to understand creating SQL Server projects and managed code. So I created a C# SQL Server Database project and named it "CSharpSqlServerProject1" and followed the steps in the following "How to: " from the Help files:

"How to: Create and Run a CLR SQL Server Stored Procedure "

I used the exact code in this "How to: " for creating a SQL Server managed code stored procedure (see below) in C#. However it didn't even compile! When I went to build the code I got the following error message:

"Error 1 Target string size is too small to represent the XML instance CSharpSqlServerProject1"

It does not give a line number or any further information! Since this is a Microsoft example I'm following I figure others must have run into this too. I can't figure out how to fix it!

Here's the code as copied directly from the howto:

using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;

public partial class StoredProcedures
{
[SqlProcedure()]
public static void InsertCurrency_CS(
SqlString currencyCode, SqlString name)
{
using (SqlConnection conn = new SqlConnection("context connection=true"))
{
SqlCommand InsertCurrencyCommand = new SqlCommand();

InsertCurrencyCommand.CommandText =
"insert Sales.Currency (CurrencyCode, Name, ModifiedDate)" +
" values('" + currencyCode.ToString() +
"', '" + name.ToString() +
"', '" + System.DateTime.Now.ToString() + "')";

InsertCurrencyCommand.Connection = conn;

conn.Open();
InsertCurrencyCommand.ExecuteNonQuery();
conn.Close();
}
}
}

Thanks for any help you can give!

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Feb 20, 2008

I have a RPC which gives me multiple - single record rows like

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Now I need to split the above record into 6 Fields and populate in my local DB
I know i could use any .NET Language and accomplish this. But Iam limited to using SSIS/T-SQL Proc's

Any ideas / directions?

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was a result of running DBCC DBREINDEX.I wasn't able to replicate this when I did a trace on my local machine, but SQL Monitor from Red-Gate shows that query happening for at least some of the tables that are being reindexed via a job. Is there anyway to examine the actual code inside DBREINDEX to see exactly what commands it may execute?

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Jan 12, 2007

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Oct 30, 2005

Hi.here is my code with my problem described in the syntax.I am using asp.net 1.1 and VB.NETThanks in advance for your help.I am still a beginner and I know that your time is precious. I would really appreciate it if you could "fill" my example function with the right code that returns the new ID of the newly inserted row.
Public Function howToReturnID(ByVal aCompany As String, ByVal aName As String) As Integer
'that is the variable for the new id.Dim intNewID As Integer
Dim strSQL As String = "INSERT INTO tblAnfragen(aCompany, aName)" & _ "VALUES (@aCompany, @aName); SELECT @NewID = @@identity"
Dim dbConnection As SqlConnection = New SqlConnection(connectionString)Dim dbCommand As SqlCommand = New SqlCommand()dbCommand.CommandText = strSQL
'Here is my problem.'What do I have to do in order to add the parameter @NewID and'how do I read and return the value of @NewID within that function howToReturnID'any help is greatly appreciated!'I cannot use SPs in this application - have to do it this way! :-(
dbCommand.Parameters.Add("@aFirma", aCompany.Trim)dbCommand.Parameters.Add("@aAnsprAnrede", aName.Trim)
dbCommand.Connection = dbConnection
TrydbConnection.Open()dbCommand.ExecuteNonQuery()
'here i want to return the new ID!Return intNewID
Catch ex As Exception
Throw New System.Exception("Error: " & ex.Message.ToString())
Finally
dbCommand.Dispose()dbConnection.Close()dbConnection.Dispose()
End Try
End Function

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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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Jul 25, 2003

Hi,

I am working on SQL-Server 2000 (developer edition) with SP3 on Win 2000 and Clients are Win98/Win XP.

I am not able to 'Step Into' my SQL Procedure code in Debug mode, executed from Query Analyzer from a client machine. As soon as I select the 'Execute' button after inserting all the parameters value, the whole procedure gets executed. But I'm able to do the same (i.e 'step into') from the Server itself.

Do I need any additional configuration settings in the client machine ??

I shall be greatful if anyone can help me to solve the above problem.

Thanx in advance.

Surajit

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Mar 13, 2006

Hi,

I have been working on a soap client project for over a week now and can not figure out what I am doing wrong. I am not an expert using Perl or SOAP so any help would be "greatly" appreciated.

I get basic errors throughout, starting with:
Error - SOAP::Transport::HTTP::Client::send_receive: POST
It seems as if the user access information is not carried through as it should, but I truly have no idea what the problem is.

Here is what I have put together so far.

Thanks,
Mark

sub procgetmemberinfo {

my $pin = "$form{'lPin'}";
my $password = "$form{'sPassword'}";

my $soap = SOAP::Lite
-> uri('https://xmlsql.XXXXX.xxx:441')
-> on_action( sub { join '/', 'https://xmlsql.XXXXX.xxx:441', $_[1] } )
-> proxy('https://xmlsql.XXXXX.xxx:441/service.asmx?WSDL');

my @params = (
SOAP::Data->name(lPin => $pin),
SOAP::Data->name(sPassword => $password)
);

my $method = SOAP::Data->name('GetMemberInfo')->attr({xmlns => 'https://xmlsql.XXXXX.xxx:441/'});

my $result = $soap->call($method => @params);
unless ($result->fault) {

my $title = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/TITLE');
my $firstname = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/FIRST');
my $middlename = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/MIDDLE');
my $lastname = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/LAST');
my $suffix = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/SUFFIX');
my $address1 = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/STREET_ADDRESS');
my $address2 = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/ADDRESS2');
my $city = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/CITY');
my $stateprovince = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/STATE_PROV');
my $postalcode = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/ZIP');
my $country = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/COUNTRY');
my $homephone = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/HOME_PHONE');
my $workphone = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/WORK_PHONE');
my $emailaddress = $result->valueof('//GetMemberInfoResult/diffgram/NewDataSet/MEMBERS/EMAIL');

print "PIN Number: $pin ";
print "Password: $password ";
print "Title: $title ";
print "First Name: $firstname ";
print "Middle Name: $middlename ";
print "Last Name: $lastname ";
print "Suffix: $suffix ";
print "Address1: $address1 ";
print "Address2: $address2 ";
print "City: $city ";
print "State: $stateprovince ";
print "ZIP/Postal Code: $postalcode ";
print "Country: $country ";
print "Home Phone: $homephone ";
print "Work Phone: $workphone ";
print "Email Address: $emailaddress";

}

else {
print join ', ',
$result->faultcode,
$result->faultstring,
$result->faultdetail;
}

}

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Mar 8, 2008

All -

I have a SQL Server 2005 HTTP endpoint. I create a transaction scope in a client application and call two methods on that endpoint. Will the operations performed in the two methods, really, be in a transaction?

In other words, will SQL Server enlist in the ambient transaction even when I am accessing it through a HTTP endpoint?

Thanks.

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Oct 25, 2007

Hi,

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When I preview the report in VS, the default values are correctly set but, when using the URL call, I keep being prompt for this parameters and the report is not rendered until I set them manually.

Does anyone ever had this problem?

Thank you in advance
Catarina Ribeiro

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May 2, 2006

On Windows XP systems I get the following issue when trying to browse the MSDB folder in SSIS

Client unable to establish connection
Encryption not supported on SQL Server. (Microsoft SQL Native Client)

I have noticed another post where several others have noticed the same issue. It appears to only occur on Windows XP installations. Is there a workaround or fix for this?

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Sep 14, 2006

I��ve been working on getting a linked server through SQL 2005 to work with VFP 9.
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What other security settings should I be checking?

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Apr 20, 2008

Can someone give me a heads up on how to do this--what tools, a how-to or the like?

Thanks
Michael Isbell

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Sep 19, 2014

SELECT MAX(ID)
FROM [LinkedServer].[Database].dbo.[TableName] (NOLOCK)
WHERE <Condition>

The above SQL Script ran successfully up to yesterday. But today its throws the below error message.

Remote table-valued function calls are not allowed.

Now i have modified the SQL script as follows

SELECT MAX(ID)
FROM [LinkedServer].[Database].dbo.[TableName] WITH (NOLOCK)
WHERE <Condition>

I want to know how the 1st SQL script runs successfully up to yesterday.

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Mar 17, 2015

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Nov 27, 2007

No idea where this bug crept in from. Have been using SSIS for 1.5 years now without hitting this problem.

I had a script component opening an XML document and parsing it using XPATH. I added some code that uses StreamReader / Streamwriter (closing one stream before starting the other). The code works without issue in my C# app.

And it ran without issue 2-3 times in SSIS. Then suddenly after running my package again, the script component says it completes successfully, yet nothing happens. I set a breakpoint on the first line of code - it never hits it. I add a msgbox as the first line of code - and it never displays.

I then close my package / exit out of ssis ... and then re-open it. When i open my script component, all of my code is GONE. All references that I added are gone.

I tried adding the streamreader/writer process to a dll I created from my c# app ... and added the DLL to the package -- same result.

I can reproduce this on 2 different computers.

Anyone experience this problem ? Any idea how to stop it ? Or debug it ?

Here is a slimmed down code sample of what causes the error :

Public Class ScriptMain
Public Sub Main()
Try
Dim xmlDoc As New XmlDocument
xmlDoc.Load("c:ulkasync_86281519_20070628045850225_4.xml")
MsgBox("xmlLoaded") --this doesn't display once the package starts "acting up"
Catch ex As Exception
MsgBox(ex.Message)
UpdateXML("c:ulkasync_86281519_20070628045850225_4.xml", ex.Message)
End Try
Dts.TaskResult = Dts.Results.Success
End Sub
Private Sub UpdateXML(ByVal fileName As String, ByVal message As String)
Try
Dim invalidChar As String = message.Trim().Substring(message.Trim().IndexOf("0x"), 4)
Dim rd As StreamReader = New StreamReader(fileName)
Dim xml As String = rd.ReadToEnd()
Xml = Xml.Replace(invalidChar, String.Empty)
xml = xml.Replace("", String.Empty)
xml = xml.Replace("<![CDATA[<![CDATA[", "<![CDATA[")
xml = xml.Replace("]]>]]>", "]]>")
MsgBox("replaced")
rd.Close()
Dim wr As StreamWriter = New StreamWriter(fileName)
wr.Write(xml)
wr.Close()
Dim xdoc As XmlDocument = New XmlDocument()
xdoc.Load(fileName)
Catch ex As Exception
UpdateXML(fileName, ex.Message)
End Try
End Sub
End Class

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Execute A Stored Procedure Which Calls SSIS Packages Using A Proxy Account For Non Sysadmins In Sql Server 2005

Sep 18, 2007

Hi all,
I have a problem while i create a proxy account.The situation is like this...There is a user who has an login in to the server.He has a stored procedure which calls some on the SSIS packages and XP_cmdshell...so this stored procedure basically load some data in to the tables .So for the login in order to execute the stored procedure as he is not a Sys admin I have created a proxy account in my account as Iam an SA and then in the proxies and in principals I selected his login name and this way I have created a credential and a proxy account.

Now the problem is if he logins with his id and password and try to execute the stored procedure it gives an error message

Server: Msg 15153, Level 16, State 1, Procedure xp_cmdshell, Line 1
The xp_cmdshell proxy account information cannot be retrieved or is invalid. Verify that the '##xp_cmdshell_proxy_account##' credential exists and contains valid information.

....so this mean the login is not able to see the proxy account.So what I did is I created a job and then in the job owner tab I have selected his login and then created a step with the type operating system (CmdExec) as I need to just execute the stored procedure and used the proxy account that I have created.

so I gave the command -- exec <stored procedure> --.
But this job fails and gives the error message as
[298] SQLServer Error: 536, Invalid length parameter passed to the SUBSTRING function. [SQLSTATE 42000]....

So now ....first My question is am I doing in a right way....if its right then why Iam not able to execute the stored procedure.

If there is any other way through which I can execute the stored procedure using a proxy account for the logins who are not sys admins....please do let me know.....

Thanks
Raja.V

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