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Friday 2 December 2011

Difference between Joiner Transformation and Lookup Transformation


Joiner

Lookup

Active Transformation

Passive Transformation

In joiner we cannot configure to use persistence cache, shared cache, uncached and dynamic cache
Where as in lookup we can configure to use persistence cache, shared cache, uncached and dynamic cache.
We cannot override the query in joiner
We can override the query in lookup to fetch the data from multiple tables.
We can perform outer join in joiner transformation.
We cannot perform outer join in lookup transformation.

Support Equi Join Only

Support Equi Join and Non Equi Join

Joiner used only as source

Lkp used as source and target

In Joiner on multiple matches it will return all matching records

In Lkp it will return either first record or last record or any value or error value

posted by Jeyakumar @ Friday, December 02, 2011,


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