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when we go for unconnected lookup transformation? and why?

Answers were Sorted based on User's Feedback



when we go for unconnected lookup transformation? and why?..

Answer / harry

When we want to get single return value, and also we can
call this anywhere in the mapping

Is This Answer Correct ?    14 Yes 2 No

when we go for unconnected lookup transformation? and why?..

Answer / pooja ahmed

1. When we want to get single return value
2. also we can call this anywhere in the mapping
3. when no.of recs are less go for unconn lkp, which improv
t\da performacesa

Is This Answer Correct ?    8 Yes 1 No

when we go for unconnected lookup transformation? and why?..

Answer / arvind

When we want to get single return value, and also we can
call this anywhere in the mapping
In addition to this it gives u the flexibility to run
lookup for selected source rows which u dont find in
connected lookup

Is This Answer Correct ?    3 Yes 1 No

when we go for unconnected lookup transformation? and why?..

Answer / guduri hari

When we want to get single return value,we can call this
anywhere in the mapping...
> when no.of recs are less go for unconn lkp, which improve
the performancee
unconnect give performance edg

Is This Answer Correct ?    1 Yes 1 No

when we go for unconnected lookup transformation? and why?..

Answer / suneel reddy

Answers 1:
Depending upon the scenario we use the conn and unconn tr..

for e.g
In u r mapping u require same lkp multiple times, creating
lkp multiple times put it in flow is not a good idea, which
occupies more cache ...
Instead of that create one unconnectes lkp use multiple
times where ever u want , which very fast..

Answers 2:
u can use conn lookup but if u need 1 row so go for unconn
lookup coz u can
use it multiple time in same mapping from multiple
expression trn.
i hope it will help to u

Is This Answer Correct ?    0 Yes 0 No

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