Integration Services Tasks
Tasks are control flow elements. That define unit of work performs in a package control flow. An SQL Server Integration Services package made up of one or more tasks. The package contains more than one task. They connect and sequence in the control flow by precedence constraints. The programming language use writes custom tasks. That supports COM, such as Visual Basic, or a.NET programming language, such as C#. The SQL Server Integration Services for working with graphical Designer tool packages. It provides the surface for creating the package to control flow configuring tasks. The SQL Server Integration Services object model to create packages.
Types of Tasks
Integration Services includes the following types of tasks.
Data Flow Task
The task runs data flows to extract data. Apply column level transformations, and load data.
Data Preparation Tasks
This task contains copy files and directories. Download files and data. Run Web methods. To apply operations to XML documents and profile data for cleaning.
The tasks contains That communicate with other processes to run packages Run programs or batch files. Send and receive messages between packages. Send e-mail messages. Read Windows Management Instrumentation (WMI) data. Watch for WMI events.
SQL Server Tasks
The tasks that access, copy, insert, delete, and change SQL Server objects and data.
the tasks that extend package functionality by using scripts.
Analysis Services Tasks
The tasks that create, change, delete, and process Analysis Services objects.
The tasks perform administrative functions such as backing up and SQL Server databases. Rebuilding and reorganizing indexes, and running SQL Server Agent jobs.
Write custom tasks using a programming language. That supports COM, such as Visual Basic, or a.NET programming language, such as C#. If want to access custom task in the SSIS Designer. They can create and register a user interface for the task.
Configuration of Tasks
An Integration Services package can contain a single task. Such as an Execute SQL task deletes records in a database table when the package runs. But, packages contain several tasks. Each task is set to run within the context of the package control flow. Event handlers run in response to run-time events, can also have tasks. Each task using the custom dialog boxes for each task. That SSIS Designer provides Properties window included in SQL Server Data Tools. A package can include many tasks of the same type.
Tasks Connections and Groups
If the task contains one task connect and sequence in the control flow constraints. Tasks group together and performed as a single unit of work, or repeated in a loop.
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