[dba-VB] SQL Server security

jwcolby jwcolby at colbyconsulting.com
Thu Jan 6 05:14:49 CST 2011


This app has been in use since I developed the initial iteration many years ago.  It is still at 
Access 2000.

John W. Colby
www.ColbyConsulting.com

On 1/6/2011 4:10 AM, Mark Breen wrote:
> Hello John,
>
> I had an almost exact issue about three months ago. It was a call centre
> with about 25 - 40 agents on the phone with an Access App.
>
> When they upgraded to Access 2007, the whole application ground to a halt.
>
> I did some basic checking but could find no single issue, so I downgraded
> them again to Access 2000 FE and BE and immediately all was ok again.
>
> Any help?
>
> thanks
>
> Mark
>
>
>
> On 5 January 2011 18:00, jwcolby<jwcolby at colbyconsulting.com>  wrote:
>
>> I am having performance issues in a largish Access application, a
>> Disability Insurance Claim call center app.
>>
>> I have one particular table which is not huge in terms of field count but
>> it does have a lot of records and most of the fields are indexed, and it has
>> about 800K records in it.  This table holds "contact" info, as in phone
>> calls that the users have.  They document every "contact" with every one,
>> claimants, doctors, lawyers, etc. into a memo field and also date of call,
>> ClaimID FK, employee id FK, contact type id FK etc.  Kind of a mini center
>> of the universe for this application.
>>
>> The result is that people are storing new records in this table constantly
>> throughout the day and we are getting a lot of "record locked..." issues
>> caused by (AFAICT) the time it takes Jet to store the records and update all
>> of the indexes, and probably the memo storage area of the mdb.
>>
>> Just to give a picture, this one table has been moved out to it's own mdb
>> and that mdb is about 700 megabytes after a compact.  Most of the rest of
>> the database (150 tables) is in another mdb and after compact that database
>> is 800 megabytes, so this one table is close to as big as the rest of the
>> db.
>>
>> I do not have experience in a transactional database using SQL Server, but
>> I am thinking that SQL Server express 2005 will not have an issue keeping up
>> with this kind of usage - 25 users adding records to this table all day
>> without causing locking issues like I am seeing now.
>>
>> My issue at this point is that they use a network logon and force the users
>> to change their password every 30 days.  Is SQL Server going to use that
>> same network username / password database or does it use a list of usernames
>> / passwords physically on the server itself?  IOW will Windows
>> authentication work or will I need to go to SQL Server username / password?
>>
>> --
>> John W. Colby
>> www.ColbyConsulting.com
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>>
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