SQL Server – DTS to SSIS Migration – SQL Circuit

SQL Server – DTS to SSIS Migration

1.    
Need of DTS to
SSIS Migration

DTS was first released with SQL Server
7.0 with a objective of helping the user in 
import, export, and/or transform data from various sources to single or
multiple sources. Now Data Transformation Services (DTS) has been replaced by
SQL Server Integration Services and SQL Server 2008 Setup does not install DTS
support. Data Transformation Services (DTS) is deprecated. We should plan to
remove dependencies on DTS in anticipation of future releases of SQL Server. so
there is a need to upgrage or migrate the DTS to SSIS packages.

2.    
Ways to
Upgrade DTS to SSIS 2008 R2

     
In Place upgrade
     
Side by Side installation
     
New installation

3.    
DTS to SSIS
Migration Plan

      Run
the Upgrade Advisor for DTS
      Fix
the issues suggested by Upgrade Advisor
      Choose
the Migration method
      Migration
Wizard to convert DTS packages to SSIS
      Rewrite
the DTS packages to fully leverage SSIS capabilities
      Use
a third-party tool (such as DTS xChange from Pragmatic Works Software)
      Continue
to run and modify existing DTS packages. This is not applicable if migrate to
SQL 2012 in future.


                                  Fig. showing DTS to SSIS Migration / Upgrade Process 

4.    
DTS Package
Migration Wizard

      Migration
wizard converts DTS to SSIS in large extends
      Some
portion need to re-write after migration
      Migration
wizard can be run from either SQL Server management Studio or Business
Intelligence studio

5.    
Without Migration
/ Upgrade

      We
can directly import the DTS to SQL Server 2008 and can be utilized.
      This
approach will not work when need to migrate DTS to SQL Server 2012 because SQL
Server 2012 has deprecated all the features of DTS.

6.    
Completely Re-Write

      Upgrade
advisor is not required
      Efforts
required are more as compare to other approach.
      It
is the best approach to avail all the benefits of new technology
      Upgrade
advisor is not required
      Efforts
required are more as compare to other approach.
     
It is the best approach to avail all
the benefits of new technology

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