• I'd suggest you post this question on a .Net forum (or maybe somewhere like StackOverflow). The functioning and internals of the SQLDataReader is all .Net, nothing within SQL Server itself, hence this is probably not the best place to ask (we're DBAs and database developers mostly, not .Net programmers)

    Also, deep knowledge of the internals is not necessary in order to use the .Net classes

    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
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