Secure Microsoft Access To SQL Linked Tables

Jan 9, 2007

Not sure if I'm posting to the right group or not, pls tell me where else to post.

My question is: I have a microsoft access database on a client desktop that links to tables in sql server. Is there a way to encrypt the data that goes back and forth between access and sql?

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Configuring A Linked Microsoft Access Database On SQL Server 2005

Nov 7, 2007

The following installation:

- Microsoft SQL Server 2005 Standard Edition running on Microsoft Windows Server 2003 Standard Edition
- Client Service for Netware installed.
- Access 2000 database in a Novell Directory Services (NDS) Environment
- SQL Server service running under local Administrator account.


Linked server configured as follow:

Linked server: MyDB
Provider: Microsoft Jet 4.0 OLE DB Provider
Product name: Access 2000
Data Source: UNC path to my Access database

Security: Admin with no password (default Access behaviour)

I can connect to my access database by following the next steps:

- Open Management studio on the SQL Server itself (where I'm logged in as Administrator)
- Connect using Windows Authentication (Administrator)
- Create a new query, run EXEC sp_tables_ex 'MyDB'

This will return all the tables from the Access database.

I can also make a view pointing to MyDB...MyTable.

Enough prove to me It can work....

So far so good


But now the tricky part.

When I login as 'sa', I can't connect and will receive the following message:

OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "MyDB" returned message "'Full UNC to my access database' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides.".Msg 7303, Level 16, State 1, Procedure sp_tables_ex, Line 41Cannot initialize the data source object of OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "MyDB".


(In real life I want to connect to my SQL 2005 Server from a ASP.NET (2.0) application using SQL authentication, but as long as I can't get the above working this is not important for now)

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Access 2007 Linked Tables (vs Access 2003)

May 15, 2007

We migrated a MS Access 2003 mdb into MS Access 2007. The mdb has linked tables to SQL Server via a DSN and utilizes a mdw file. In 2003, the username/password is "passed" to SQL Server, so the UID/PWD that is used for opening the mdb, is used in SQL Server.



Opening the same file in 2007 using the same mdw, gives a secondary login on SQL Server.



Is there a way to have MS Access 2007 pass the UID/PWD to SQL Server on linked tables, the same way that 2003 does?



Thanks!

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Microsoft Access Database Link Tables

Jan 30, 2008

Hi All, I have recently moved jobs. From my last job I created a holiday database for the organisation, than I copied it on a storage device. Now, in my new job I would like to use same database. But the problem is most of the tables were linked. I know I can convert linked tables to local tables and I have tried it but it asks me for the new location with the same table names. Can some one please helpppppppppppppppppppppppppppppppppp I as I am really very desperate.

Thanks in advance.

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Linked Server ( Not Able To Access Any Tables Under LINKED SERVER From My DESKTOP Enterprise Manager

Mar 25, 2002

Hi ,
On my Desktop i registered Production Server in Enterprise Manager
on that Server if i go to SecurityLinked Servers
There is another Server is already mapped, when i am trying to see the Tables under that one of the
Linked Server i am getting the Error message saying that
"Error 17 SQL Server does not exist or access denied"

if i went to Production Server location and if i try to see the tables i am able to see properly, no problems
why i am not able to see from my Desk top
i am using the sa user while mapping the Production Server on my DESKTOP using (ENTERPRISE MANAGER)

And i check the Client Network Utility in the Alias using Named Pipe only, i changed to TCP/IP still same problem
What might the Problem how can i see the Tables in Linked Server from my DESKTOP

Thanks

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Access/SQL Linked Tables

Nov 17, 2005

I have linked a number of tables from a SQL database to a Access front end. I am able to update all but one of the tables (the main table I need!!!). I get the error, cannot update record as it has been changed by another user although there is no other user. I believe it may be to do with the way the recordset is linked to the access database or the referential integrity of the table associations in the SQL database.

I can change the data using query analyser without issue.

Any help would be greatfully apreciated.

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Apr 21, 2006

Hi,

I've just installed SQL Server 2005 Express Advanced and I haven't found a way to import Microsoft Access 2003 files. Is there a way to do it?

Thanks in advance,

Sergio Oliveira

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Question About Linked Servers And Access Tables

Jan 7, 2005

Having a little problem with linking to Access tables. I have an Access database that has in it, some linked tables. After setting up the linked server in SQL server, none of the linked tables in Access show up, only the tables that were created or imported show up.

Is there anything you can do to get the linked tables in Access to show up under the tables list in the SQL linked server?

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Securing SQL Server Tables Linked Via Access

Jun 7, 2000

Hello,
We are currently live with a CRM solution (Siebel) that uses SQL Server 6.5 as the back end. All is fine and dandy, except I have some reservations about security.
Quite simply, it is possible for anyone to open up MS Access and link to any of the SQL Server database tables via the ODBC DSN used by the Siebel front end. This DSN is necessary for Siebel to function.
I am bit worried that someone (out of incompetence or spite) might do just that and cause some serious damage. Its probably technically beyond the large proportion of our users (especially those that could make mistakes!), but I can't get the nagging fear out of my head.
Does anyone know of anyway to combat this problem? I have scoured the web, including this site, and cant seem to get any information on this.
Thanks and Regards
Dike

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Is It Possible To Define In Sql Server Linked Tables As In Access?

Mar 23, 2006

is it possible to define in sql server linked tables to odbc data sources as it is possible to do in access?
except Access and vfp, is there another database that allows to create linked tables to odbc data sources?

I need to combine in a database native tables with odbc linked tables, but it would need to use a database more powerful that access or vfp

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View Tables In Linked Access Database

Apr 14, 2008

Hey everyone. I've linke an access database and I am able to query the tables like so:


SELECT *
FROM QFinity...tblEmployees

I can do that to all the tables, however, I'd like to create a view to this linked database. Is this possible? I have a more complex query I'd like to run:



SELECT dbo_evaluations.eval_id, dbo_evaluations.quality_date, dbo_eval_questions.status
FROM QFinity...dbo_evaluations INNER JOIN dbo_eval_questions ON dbo_evaluations.eval_id = dbo_eval_questions.eval_id;

I get the error "Msg 208, Level 16, State 1, Line 1
Invalid object name 'dbo_evaluations'."

I'm afraid I've reached the limit of my know how concerning sql server 2005... I think I read that I need to create a view? But I can't figure out how to do that.

Thanks for any help!

Dave

Windows XP, Office XP

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Cannot Update Tables Linked To Access Front-end

Sep 26, 2006

Hi,
I've a bit of a problem that I'm stuck on.

I have a system that has the tables on an SQL Server with the front-end on a Microsoft access database. They are connected via odbc and the tables are linked to the access front-end. The odbc connects to the sql server via a user created for the purpose that only has rights to this database. This user has rights set so that they can access/alter any data in the database.

When my users try to alter data on some of the linked tables they get "The Microsoft Jet database engine stopped the process because you and another user are attempting to change the same data at the same time." This does not happen to every table only on some of them.

This happens even when there is only one user accessing the system. If I log into the enterprise manager I can alter those tables/ records without any problem (as some articles I’ve read say if the problem is connected to a corrupt record its not possible to then alter that record and sql server should give me an error message instead).

I have tired.
- Compact and repairing the access front-end.
- Deleting the links in the access front-end then re-linking them.
- Copying the objects from the access to a new blank access db.
- I have tried altering the account the odbc uses to login to the SA account.
- I have asked the server admin to do the 'compact and repair' on the s.q.l server, shrink I believe it is, as some articles suggest this could solve the problem.
- The admin has also tried this on the transaction files (so he has told me).

None of this has worked.

I'm stuck. I don't have any training on SQL server (nor will I be able to have any as I gather the training budget may be needed to fill some finance holes). If anyone has any idea of the answer to my problem or could point me in a direction that I could try investigating I would be very grateful. I have asked the admin if it’s anything to do with transactions, he has told me he does not know how to see those but he will try to find out if we can. Am I shooting in the dark or does this sound like a transaction/process locking problem? Is there something I should be looking for?

Thanks in advance.

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Access 2003 Linked Tables Update

Jun 28, 2007

Hello,



I am trying to update some SQL-linked tables in my Access database by repoiting the existing linked tables to a new datasource. The problem is, when I go to select the machine data source where the table sits, I get an error message saying the MS Jet Database can't find the object. This is because when Access creates the linked table, it replaces the period in the <schema>.<table_name> with an underscore. So when I go to update the links, it is essentially looking for the new table with the wrong file name.



I have about 80 linked tables to update and I haven't been able to figure a work-around. HELP PLEASE!



Cheers,

Josh

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Nov 30, 2006

Please help

We have an application written in MS Access. The tables are linked to a SQL 2000 database.
The problem is that sometimes insert a new record in a table freezes and times out after a while without anything has happened.
When installing the application the *mdb file is copied over to the C drive and an ODBC connection is written to the registry.
The application is used by many in the company.
We have problems on tables defined with IDENTITY columns. Can this be our problem and how can we solve it?

Regards Anna-Lena

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Mar 13, 2007

I am using two almost idential laptops, one with XP and one with Vista, the only differences is that the XP laptop has 1G of RAM and running Office XP and the Vista has 2G RAM and is running Office 2007.

I have a MS Access database that has linked tables to a SQL Server 2000 database. The performance of the Access database on Vista is 5-10 times slower on the Vista machine. Just flipping through records or opening forms can take 5 - 15 seconds on the Vista machine while the XP machine takes 1 sec or less.

What gives? I looked at the CPU performance and the network performance while the Access database was busy flipping through records, the network traffic was < 2% and the CPU would spike to 40% on one of the CPUs (dual core) but would remain under 5% most of the time.

I also previously had Office XP installed on the Vista machine and it had the same performance issue so bought and install Office 2007 on the Vista machine and it did not solve the problem.

It seems that Vista is doing something that is slowing down Access with linked tables. Is this a issue between Vista and using an ODBC connection to SQL Server?

Thanks in advance for any help on this

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Nov 1, 2006

Hello Experts!!

Let me start off by saying I'm not a SQL expert and have very limited knowledge on the topic.Here is my question:Our organization has an archiving solution that stores data in a SQL database. This applicaton creates two SQL accounts. One that is used to archive to the database. The second to browse the database from a search interface provided by the application. With all the federal compliance issues I see that they require the data to be stored in "a non-rewriteable and non-erasable format". My question is. How can I prevent the database from being erased in the SQL database? As 'Administrator' I can open Enterprise Manager and open a table in the database and simply delete any record that I wish. I understand that might have this ability because I'm logged on as Administrator. How do I prevent access to this database and prevent access modify the records. I believe the only two accounts that should have access to the database are the Archive and Browse accounts required by the application.

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Jul 23, 2005

Dear All,Access adp on sql-server 2000After upgrating to A2003 updating data with 1 perticular combobox causes theprogram to hangs without any error-msg.Traying to change te combobox recordsource i get this error:This version of Microsoft Access doesn't support design changes to theversion of Microsoft SQL Server your project is connected to. See theMicrosoft Office Update Web site for the latest information and downloads(on the Help menu, click Office on the Web). Your design changes will not besaved.The solution in :http://support.microsoft.com/defaul...kb;en-us;313298tolks about SP 'dt_verstamp007' but I have SP 'dt_verstamp006'What should I do.Is the failure of the combobox also caused by the absence of dt_verstamp007???Filip

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odbc_pconnect() [function.odbc-pconnect]: SQL error: [Microsoft][ODBC Microsoft Access Driver] System resource exceeded., SQL state S1001 in SQLConnect





we got the error with access 2000 database and PHP as prog. language .



we created dsn for the connection.



reboot solves the problem. but we need another solution better than this.

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Jul 23, 2005

Dear netters,We are looking to build a SQL Server database that will be hooked up toa Web server (WebLogic or a .NET).The database will house data for multiple customers, and therequirement is to have no customer see other customer data. Web serverwill be responsible for authenticating users (ids and passwords will bemaintained there/possibly stored in the database, but will not beactual database logins) -- and establishing pooled connections to thedatabase, using some sort of a proxy login.Ideally, we do not want to have the database itself visible to "theworld", it should reside behind a firewall, and be accessible throughthe Web server, which will do all authentication and routing.We want to have either tables or views defined in such a way that:1. Users can only see their own data and NEVER can see anybody else's.2. Users' access to the database is logged (this includes updates aswell as queries).3. We would like to provide some sort of a reporting mechanism -- whereusers can form their own queries. So, something like a Crystal or anAccess front end, that users are typically familiar with... The problemis that this requires users having direct access to the database (?),and opens up tables (unless, there is a way to create parameterizedviews that will always restrict access to a subset of records).Any advice on how to best implement this is greatly appreciated.Thank you in advance!

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Oct 7, 2005

Ok, I need to give some details. I have a secure Access Database using WorkGroup Security logon. It is an Access 97 database (yes I know it is "old").

I tried to create a DTS package in SQL Server 2000 to connect to it, but I am getting the same error that I got before I "joined" the workgroup when attempting to access the DB. So I changed the Service logon identites to mimic <me> as the logon, and still I can't get it to connect. The user name and password I put in the connection are correct.

It seems like nothing is working and I am all out of ideas. Does anyone have any recommendations? Has anyone done anything like this successfully?

PS: I can manually logon to the database, and extract the data 1 table at a time, but I don't want to export 40 tables each time I have to load this data. Any help would be appreciated. Thanks in advance.

Frank

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Mar 13, 2008

Ok, here is the problem.

SQL Server 2000 DTS Package
Need to access a secure website which displays a list of available files for download.
Firstly need to read that page to determine the most recent file.
There is a view link to the file which uses java script to post back information for file download.

Any ideas please ?

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May 8, 2007

Hi guys



I'm writing a C# application which connects to a local SQL database for data access. The application connects to SQL Server through windows authentication, but opens up the port and sqlbrowser to others on the network wanting to access the database through SQL Server authentication, and also allows remote users to connect to this server remotely if they have the login and password (and because the port is already open)



I understand this is not secure and open to attack, and am unsure of how to secure these processes without blocking these three types of access, from A.) the local user, B.) the network user and C.) the remote user across the net.



Have researched this a fair bit, but get somewhat lost amongst all the jargon.

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Aug 26, 2006

hello all member

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Linked Servers In Microsoft SQL 2005

Mar 25, 2008



Hi,

I have:
- SQL 2005 Dev on machine A
- SQL 2005 Dev on machine B

I've made a linked server from A to B using:
- Windows authentication
- SQL Server authentication

However, I ran into the following "problems":

- When creating a linked server from A to B, when I do a "new linked server" I have to give it the same name as machine B.
- Therefore, I can only make one linked server to B (not f.ex. make two, one Windows authentication and one SQL Server authentication).


Is it only possable to make one linked server to a machine running SQL Server 2005?

Thank you.

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Dec 21, 2006

Hi All,

I am writing an interface between SQL Server and Access. I have chosen to use a linked server using the Microsoft.Jet.OLEDB.4.0 provider. One of the requirements is to have multiple SQL statements in one transaction, which is where I am encountering the problem. (see below)

BEGIN TRAN

INSERT INTO ACCES...Table

Msg 7390, Level 16, State 2, Line 2

The requested operation could not be performed because OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "HES" does not support the required transaction interface.

I am having a really really hard time finding documentation on the Microsoft.Jet.OLEDB.4.0 provider, specifically I want to know for sure if it supports the ITransactionJoin interface.

The main question is - does MS Access linked servers support transactions?

Thank you for your help,

I have exausted all resources available to me in finding out the answer.

Thanks,
Eric

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Linked Server Using Microsoft.Jet.OLEDB.4.0 Problem

Feb 9, 2006

Hi all,

I'm using following code to create linked server and then access data

EXEC sp_addlinkedserver N'XLS',

'Jet 4.0',

'Microsoft.Jet.OLEDB.4.0',

'C:DataProdukthierachie.xls',

NULL,

'Excel 5.0;'



EXEC sp_addlinkedsrvlogin N'XLS', FALSE, NULL, Admin, NULL

SELECT * FROM XLS...SWProdukthierachie$

When executing the select statement I get following error message

OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "XLS" returned message "Unspecified error".

Msg 7303, Level 16, State 1, Line 1

Cannot initialize the data source object of OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "XLS".

Strange is that when I run this code on dev machine it works fine. But when I try to execute it on my second (pilot) machine it ends with the error message posted. I'm not a admin on the pilot machine so I don't know it's exact configuration but I'm beeing assured that the only difference is that on pilot machine there is no Visual Studio installed.

I'm running SQL Server 2005 9.0.1399.

Could anyone give me some hints?

Thx

fleshi

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OLE DB Provider Microsoft.Jet.OLEDB.4.0 For Linked Server Error

May 5, 2008

Hello all,

I want to create a table in MS-Access. So I have written the following query.




Code Snippet
select * from Openquery(KKACC, 'select * Into Temp from Table select 1 as col1')





But I am getting the following error.





Code Snippet

OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "KKACC" returned message "Syntax error in FROM clause.".
Msg 7321, Level 16, State 2, Line 1
An error occurred while preparing the query "select * Into Temp from Table select 1 as col1" for execution against OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "KKACC".






How can I resolve this error. Does any one have any work arround for this..?

Thanks
-- Krishna

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Jan 12, 2000

Hi Everyone,

I have set up a link from ACCESS to a SQL 7.0 database using ODBC (File DSN saved on a shared DRIVE). The link works well only from the workstation where the link was created. But How can I create a link so a group of users can view the linked table in ACCESS without type a password? Any suggestion is appreciated.

Lunjun

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Oct 7, 2015

I am using the following select statement to get the row count from SQL linked server table.

SELECT Count(*) FROM OPENQUERY (CMSPROD, 'Select * From MHDLIB.MHSERV0P')

MHDLIB is the library name in IBM DB2 database. The above query gives me only the row count of table MHSERV0P. However, I need to get the names, rowcounts, and sizes of all tables that exist in MHDLIB librray. Is it possible at all?

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Dec 25, 2007

Hi,

I have been trying to export data from a Microsoft Excel 2007, Tester.xlsx to a SQL Server 2005 table as :

SELECT * INTO CUSTMAS FROM OPENDATASOURCE('Microsoft.Jet.OLEDB.4.0',
'Data Source=C:Tester.xls;Extended Properties=Excel 8.0')...[Providers$]

I have an error:

Cannot get the column information from OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server"(null)"

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Jan 24, 2008

I'm new to my company, although not new to SQL 2005 and I found something interesting. I don't have an ERD yet, and so I was asking a co-worker what table some data was in, they told me a table that is NOT in SQL Server 2005's list of tables, views or synonyms.

I thought that was strange, and so I searched over and over again and still I couldn't find it. Then I did a select statement the table that Access thinks exists and SQL Server does not show and to my shock, the select statement pulled in data!

So how did this happen? How can I find the object in SSMS folder listing of tables/views or whatever and what am I overlooking?

Thanks,
Keith

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Any Solution? Cannot Initialize The Data Source Object Of OLE DB Provider Microsoft.jet.oledb.4.0 For Linked Server (null).

Jul 22, 2007

This is a problem that never get solved, sometime I can use other way to avoid it, but havn't found a solution yet, i hope I can get some more idea here.

I am using SQL 2005, when I run



select * into #import1
from OpenRowSet('microsoft.jet.oledb.4.0','Excel 8.0;hdr=yes;database=\ws8webjeff2.xls',
'select * from [jeff2$]')



I get

Cannot initialize the data source object of OLE DB provider "microsoft.jet.oledb.4.0" for linked server "(null)".



when I try to compile a SP with that statement in it, I get the same error, like



create stored procedure test

as begin

select * into #import1
from OpenRowSet('microsoft.jet.oledb.4.0','Excel 8.0;hdr=yes;database=\ws8webjeff2.xls',
'select * from [jeff2$]')

end



so it seems the error may not relate to the real file, since at the compile stage, it should not check the real file?



On my live db, after I restart the SQL service, the statement will work, after a while, one or several days, I get the same error again. I can not restart my live db quite often for sure, so now I have another backup db server, I need run the statement on the backup server and then read the data from there.



I have the same problem at two places, both use SQL 2005.



So far there are three questions

1, why it works after restart, but only last for a while? something about memory? since the backup db seldom need restart and work fine after many days.



2, why it gives error in compile stage?



3, why two dbs in different Enviroment has the same problem



The most answer I have gathered so far is permission issue, true I got similar error if the import file is located in a place which SQL has no right to access. But in this case, it should not be.



Any other idea or suggestion?



thanks

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Microsoft Access Security

Jan 20, 2004

I HAVE CREATED A SECURITY DATABASE USING A NEW WORKGROUP FILE WITH A NEW MDW FILE NAME. THE DATABASE ITSELF CONTAINS SEVERAL GROUPS OF USERS AND SEVERAL USERS. THE DATABASE WORKS AS DESIGNED.
THE PROBLEMS IS IF I OPEN THIS DATABASE USING THE SYSTEM.MDW FILE, THE DATABASE OPENS AND GIVE ME COMPLETE ACCESS TO EVERYTHING.

CAN ANYONE EXPLAIN WHAT IS HAPPENING.

ANY HELP WILL BE APPRECIATED

THANKING YOU IN ADVANCE

JOSEPH FORD

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