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SQL Server Express and dashCommerce Setup

I'm trying to setup dashCommerce on my dedicated server, of which I already had SQL Server Express Installed; however, I"m not sure if I had installed it with Advance Services or not. So I need Expert help in this area:
1. How can I determine if Advance Services is installed?
2. If it is installed, how can I change Authentication Mode from Windows Authentication Mode to Mixed Mode?
3. If I should uninstall the SQL Express Server 2005 and reinstall it with Advance Services, will everything fall back into place okay with all the existing websites on my dedicated server using .mdf databases in their respective App_Data folders?

Thanks.
Microsoft DevelopmentMicrosoft SQL Server 2005Microsoft SQL Server

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John Account

8/22/2022 - Mon
Banthor

Do not use SQL Express for anything other than Development.
SQL Express is designed to Fail Silently when under a significant load.
This is by design.
ASKER
John Account

Are you serious?!
Banthor

YES, AND Verified
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck
ASKER
John Account

Really?---who's verified that?
So...what you're suggesting, Banthor, is not to use SQL Server Express under a significant load? Can you define approx. how significant that load will be once SQL Server Express begins to silently fail? Thanks.

Someone had once told me that SQL Server Express could handle a significant amount of traffic, and that, unless I"m building a huge datastore, it should be fine for even heavy loads. But I am certainly open to what you have to say regarding this matter, Banthor.
Banthor

While testing SQL Express for use in bedside monitors
We verified that when at an excess of 10 simultanous "active" spids there was a 10% fail rate.
The connection was closed without an error.
this was visible in Gaps in a Heart monitor -
So you can see we had to move on to another data store.

There is always the nature of the use, and the nature of the data.
SQL Express does perform well,
But it's intended purpose is development
and as a Local Machine/Distributed data store for more complex applications.
anything else is beyond the scope of the product.


ASKER
John Account

Goodness Gracious, Banthor...I will certainly keep this in mind. Thanks.
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Faizan Sarwar

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ASKER
John Account

THanks.