Lookups and Indexes - SQL Server Forums

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SSIS and Import/Export (2005)

Lookups and Indexes

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Topic

Ali Chadorbaf
Starting Member

44 Posts

Posted - 2010-03-11 : 19:00:00

Does Lookup component in SSIS 2005 use indexes?
I am simply joining the output of OLE DB Source to a lookup table (with more than 50 million rows). Does indexing lookup table make a difference in performance?

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2010-03-11 : 22:49:17

A table with more than 50 million rows should definitely be indexed.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

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