Optimising Lookups with the Cache Transform (Video)

by Allan Mitchell 14 May 2010 15:40
How to optimise doing the same lookup multiple times. [More]

The Pipeline Limiter in SQL Server Integration Services (Video)

by Allan Mitchell 14 May 2010 11:51
Not many people understand that the Integration Services pipeline can be intentionally throttled back under the covers to stop you from running out of memory.  In this video we show you how to detect this is happening and explain more about the limiter itself. More...

Preview of SSIS in SQL Server 2008 (Presentation)

by Allan Mitchell 15 Oct 2007 14:00
Download the slides and samples from the Preview of SSIS in SQL Server 2008 presentation, first presented at the SQLBits 2007 Community Conference. In this session we looked at some of the new and improved features of SSIS coming in SQL Server 2008. Highlights include: Looking at the new pipeline limiter The new threading engine The arrival of C# as a scripting language option Change Data Capture(CDC) Presentation & Samples (360KB) Preview of SSIS in SQL Server 2008.zip

Pipeline Memory Limiter

by Allan Mitchell 10 Sep 2007 14:00
Michael Entin has blogged about something that you see now, well you feel the effects anyway, in SQL Server 2005 but it isn't as visible as it should be but is really important. Backpressure is an interesting internal memory limiter inside SSIS and in SQL Server 2008 you get to see when the limiter kicks in. For a detailed explanation see Michael''s blog entry here but we wanted to show you how to reproduce it very simply. Here is a package we are going to use to show the limiter kick in and how SQL Server 2008 shows us it taking effect: Inside the Script Component a... [More]

Log Events and Pipeline Events

by Guest 6 May 2005 14:00
I was about to write about data flow buffer size configuration properties but need to get this one out first so that we can refer to it. The Data Flow task (internally and in the object model also called the 'Pipeline') logs some pretty interesting information that describe the internal scheduler. To see these messages, one way is: 1. In a package you want to get detailed pipeline logs on, select the 'Logging...' menu option on the control flow. 2. Check the Data Flow task of interest on the tree on the left. Switch over to Details and se... [More]

The Script Component as a Transformation

by Allan Mitchell 2 Aug 2004 14:00
In this article we are going to assume a few things about the reader as we want to concentrate as much as possible on the Script Component itself and not the peripheral stuff The things we will assume are: You are happy with adding a Data Flow task to the designer in Workflow You are happy to configure an OLE-DB Source adapter You are comfortable with configuring mappings in the Destination adapter As usual we will show you a graphic of the Data Flow once it is completed so we know that if yours resembles ours at the end then chances are we are at the same place. ... [More]

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