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Showing page 4 of 7 (68 total posts)
  • Does SSIS in Denali solve the "relative paths" problem?

    Earlier today I stumbled upon a blog post that I wrote back in 2008 entitled Absolute and relative paths where I said: A common complaint about SSIS is that it does not allow the use of relative paths. The most useful application of this feature would be the ability to execute packages (using the Execute Package Task) where all the ...
    Posted to Jamie Thomson (Weblog) by jamiet on March 25, 2011
  • Have SSIS' differing type systems ever caused you problems?

    One thing that has always infuriated me about SSIS is the fact that every package has three different type systems; to give you an idea of what I am talking about consider the following: The SSIS dataflow's type system is made up of types called DT_*  (e.g. DT_STR, DT_I4) The SSIS variable type system is based on .Net datatypes (e.g. ...
    Posted to Jamie Thomson (Weblog) by jamiet on March 14, 2011
  • Why I don't use SSIS checkpoint files

    In a recent discussion in regard to general ETL best practises the subject of checkpoint files as a means for package restartability came up and I stated that I was dead against using them. For anyone that may care, here is why: Configuring them is distinctly unintuitive (that's a matter of opinion but if you follow the link I'll wager that you ...
    Posted to Jamie Thomson (Weblog) by jamiet on March 10, 2011
  • Export all SSIS packages from msdb using Powershell

    Have you ever wanted to dump all the SSIS packages stored in msdb out to files? Of course you have, who wouldn’t? Right? Well, at least one person does because this was the subject of a thread (save all ssis packages to file) on the SSIS forum earlier today. Some of you may have already figured out a way of doing this but for those that haven’t ...
    Posted to Jamie Thomson (Weblog) by jamiet on February 2, 2011
  • Merge Join component sorted outputs [SSIS]

    One question that I have been asked a few times of late in regard to performance tuning SSIS data flows is this: Why isn’t the Merge Join output sorted (i.e.IsSorted=True)? This is a fair question. After all both of the Merge Join inputs are sorted, hence why wouldn’t the output be sorted as well? Well here’s a little secret, the Merge Join ...
    Posted to Jamie Thomson (Weblog) by jamiet on January 31, 2011
  • Always use dtexec.exe to test performance of your dataflows. No exceptions.

    Earlier this evening I posted a blog post entitled Investigation: Can different combinations of components effect Dataflow performance? where I compared the performance of three different dataflows all working to the same overall goal. I wanted to make one last point related to the results but I thought it warranted a blog post all of its ...
    Posted to Jamie Thomson (Weblog) by jamiet on January 12, 2011
  • Investigation: Can different combinations of components affect Dataflow performance?

    Introduction The Dataflow task is one of the core components (if not the core component) of SQL Server Integration Services (SSIS) and often the most misunderstood. This is not surprising, its an incredibly complicated beast and we’re abstracted away from that complexity via some boxes that go yellow red or green and that have some lines drawn ...
    Posted to Jamie Thomson (Weblog) by jamiet on January 12, 2011
  • Required Parameters [SSIS Denali]

    SQL Server Integration Services (SSIS) in its 2005 and 2008 incarnations expects you to set a property values within your package at runtime using Configurations. SSIS developers tend to have rather a lot of issues with SSIS configurations; in this blog post I am going to highlight one of those problems and how it has been alleviated in SQL Server ...
    Posted to Jamie Thomson (Weblog) by jamiet on December 20, 2010
  • Introducing SSIS Reporting Pack for SQL Server code-named Denali

    In recent blog posts I have introduced the new SSIS Catalog that is forthcoming in SQL Server Code-named Denali: What's new in SSIS in Denali Introduction to SSIS Projects in Denali Parameters in SSIS In Denali SSIS Server, Catalogs, Environments and Environment Variables in SSIS in Denali The SSIS Catalog is responsible for ...
    Posted to Jamie Thomson (Weblog) by jamiet on December 8, 2010
  • SQL Server 2008 SP1 CU 6 includes small changes to .dtsx files

    At work earlier this week an SSIS package in our environment was failing inexplicably and after a great deal of effort my superhuman colleague Tom Hunter discovered the root cause of the problem and I thought it might be worth sharing, particularly as a poster to the SSIS forum earlier today encountered the same problem. The problem was in regard ...
    Posted to Jamie Thomson (Weblog) by jamiet on November 25, 2010
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