Scenario:
In which conditions
we can not use joiner transformation (Limitations of joiner transformation)?
Solution:
1. When
our data comes through Update Strategy transformation or in other words after
Update strategy we cannot add joiner transformation
2. We
cannot connect a Sequence Generator transformation directly before the Joiner
transformation.
The
Joiner transformation does not match null values. For example if both EMP_ID1
and EMP_ID2 from the example above contain a row with a null value the
PowerCenter Server does not consider them a match and does not join the two
rows. To join rows with null values you can replace null input with default
values and then join on the default values.
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