Logical OR in Control Flow to Skip Task

by Allan Mitchell 28 Oct 2008 08:52

Here is an example of how to do something that in DTS we would have had to do some coding in Script. In our packages we often find the need to follow one path or another in the Control flow based on some condition that exists at runtime. In the example below we use a variable value to de... [More]

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Tags ssis, logical or, skip task, control flow

Categories Execution | Tasks | Workflow

Disabling tasks through Expressions

by Darren Green 28 Oct 2008 08:43

All Containers include a Disable property. This is what is used for the right-click Disable/Enable functionality you may have used when developing packages in the designer. Expressions are evaluated at run-time and can be used to set properties, so it follows that you could use an expression on the ... [More]

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Tags tasks, disable, expressions

Categories Tasks | Workflow

Meaning of the On Success Workflow Constraint

by Allan Mitchell 3 Oct 2005 14:00

What do you think happens in the following trivial package (The first task is disabled)? Nothing. Error. Everything except for the first task executes. Let's take a look Suprised? Well if like us you are coming from a DTS background then it most likely will ... [More]

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Tags workflow

Categories Workflow

Shredding a Recordset

by Allan Mitchell 15 Jun 2005 14:00

Doing what to a recordset? Shredding a recordset in this instance means that we are going to show you how to take a recordset produced in your SSIS package, loop over the rows in that recordset, break apart the columns and do something with them. This is really useful when you want to preform a... [More]

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Looping over files with the Foreach Loop

by Allan Mitchell 31 May 2005 14:00

In SQL Server 2000 Data transformation Services (DTS) it was a bit of a hack to be able to loop over files of a given type in a certain directory and import them into your destination. It involved a lot of "Glue Code" and a certain amount of fooling the package into going back to a pre... [More]

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Tags loop

Categories Workflow

Parallel Execution Properties

by Guest 5 May 2005 14:00

Adjusting the following properties can have an impact on parallelization during execution: 1. MaxConcurrentExecutables This is a property on the Package. It defines how many tasks can be run concurrently. A value of -1 means the number of processors and when hyperthreading is turned on... [More]

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Tags dataflow, engine threads, loop, performance

Categories Data Flow | Workflow

For Loop Container Samples

by Darren Green 10 Aug 2004 14:00

One of the new tasks in SQL Server 2005 is the For Loop Container. In this article we will demonstrate a few simple examples of how this works. Firstly it is worth mentioning that the For Loop Container follows the same logic as most other loop mechanism you may have come across, in that it will c... [More]

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Tags loop

Categories Workflow

Workflow Constraints - Logical OR

by Allan Mitchell 2 Aug 2004 14:00

To do some of the stuff we wanted in SQL Server 2000 DTS we had put together some serious glue code and to be honest it wasn't pretty. One of the things that we used to have to do this way was if we wanted to implement using workflow constraints a Logical OR. Well that has changed and it is no... [More]

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Introduction to Expressions on Workflow

by Allan Mitchell 2 Aug 2004 14:00

SQL Server 2005 gives us loads of flexibility in our workflow management to decide how and if the following task should be executed. In this article we are going to introduce you to one of those ways and that is putting an expression into the workflow constraint itself. The Situation is as fo... [More]

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Tags expressions

Categories Workflow

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SQL Server Integration Services - SSIS

Logical OR in Control Flow to Skip Task

Disabling tasks through Expressions

Meaning of the On Success Workflow Constraint

Shredding a Recordset

Looping over files with the Foreach Loop

Parallel Execution Properties

For Loop Container Samples

Workflow Constraints - Logical OR

Introduction to Expressions on Workflow

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