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MSSQL Server 2008 Express Concurrent Connections

  • July 22, 2010 at 6:42 am

    #235677

    Would anyone happen to know if there is a limit on concurrent connections with SQL Server 2008 Express? I believe it was 32687 or somewhere around that but wasn't sure if this applied to the express edition.

    We are going to use this on a Production environment where we get around 6-7k hits per day. Our current host has the SQL server sitting on it's own box with only 768mb ram and the database size is about 5gb, which the log files are taking up a good 2gb of it.

    SQL Server Express 2008 R2 as far as I know has a limit of only one processor and up to 1gb for memory. I think we should be fine, but what are your thoughts?

  • July 22, 2010 at 10:00 am

    #1196956

    There are so many dependencies for this, I just don't know where to begin.

    How is the design of the database? Are the columns properly indexed? What kid of queries are each user preforming? How much data is being returned per resultset? The list is huge.

    Why would you want to use an Express version in a Production environment? How do you plan to maintain the databases? Maintaining a database is so much more important that the number of users trying to access the database. Without maintenance, there will soon be no database.

    I would almost say, that the database will not be there long. Without proper maintenance, the queries will begin to take longer and longer everyday.

    Andrew SQLDBA

  • July 22, 2010 at 11:03 am

    #1197009

    No limit on concurrent connections, though your DB is too large for 2008 Express. It has a DB size limit of 4 GB. R2 ups that to 10GB, but remember that's a hard limit. Hit it and you won't be able to insert more data. Other than that, only testing will tell you if the resource limitations on Express will hinder your system or not.

    Andrew, while there's no SQL Agent with express, that doesn't mean it can't be maintained. There are other ways to schedule maintenance tasks. Windows scheduler being the most obvious.

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass

  • July 22, 2010 at 11:09 am

    #1197014

    Gail

    Good to know.

    Thanks

    Andrew

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