What is diff between connected and unconnected lookup?
- 5 Answers
- 7249 Views
- BirlaSoft, Blue Star Infotech, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / padmavathi
Connected Lookup:
Part of the mapping dataflow.
Returns multiple values by linking output ports to
another transformation
Executed for every record passing through the transformation
More Visible, shows where the lookup values are used.
Unconnected Lookup:
Seperate from the mapping dataflow.
Returns one value by checking the return port option for
the output that provides the return value
only executed when the lookup function is called
Less visible, as the look is called from an expression
within another transformation
Default values are ignored
| Is This Answer Correct ? | 3 Yes | 0 No |
connected lookup:
It is used to join the two tables
it returns multiple rows
it must be in mapping pipeline
u can implement lookup condition
using connect lookup u can generate sequence numbers by
enabling dynamic lookup cache.
unconnected lookup:
it returns single output through return port
it acts as a lookup function(:lkp)
it is called by another t/r.
not connected either source r target.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / kalu bhai
CONNECTED look up:
>> It will patispated in data pipeline
>> It contain maltible inputs and maltible outputs.
>> It supported flat file and relation table
>> It supported static and dynamic cache.
UNCONNECTED LOOK UP:
>> It will not patispated in data pipeline
>> It contain maltible inputs and single output.
>> It supported relation table only
>> It supported staticcache only.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / ramesh
the main difference between connected and unconnected is
connected:
recieves data from source table in a pipeline.
it returns multiple columns
it supports user defined default values
unconnected:
recieves data from result of the lookup expresion on other transformation
it returns one column
it doesnt supports use defined default values
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / naidu.k
Connected Lookup
Its can recieve multiple input ports and returns
multiplepoutputorts
it is part of mapping data flow
when lookup condition no match Data the integration services
returns insert the data
when lookup condition match Data The integration services
returns update the Data
default values supports
UNConnected Lookup
Its not part of mapping data flow it can recieve multiple
input ports and return single output ports.
when lookup condition no match data the integration services
returns null values
when lookup condition matchdata the integration srvices
returns update data
default values removed
I
| Is This Answer Correct ? | 0 Yes | 0 No |
1)can anyone explain how to use Normalizer transformation for the following scenario Source table | Target Table | Std_name ENG MAT ART | Subject Ramesh Himesh Mahesh Ramesh 68 82 78 | ENG 68 73 81 Himesh 73 87 89 | MAT 82 87 79 Mahesh 81 79 64 | ART 78 89 64 | please explain what should be the normalizer column(s) The GCID column 2)Also please explain the Ni-or-1 rule.
5 Answers FCS, IBM, Satyam, TCS,
Explain joiner transformation in informatica
What is target designer and target load order?
How does the aggregator transformation handle null values?
How to eliminate duplicates from flat file..what is the procedure
I am having two tables,say table1 having cols Empid,firstname,lastname,middlename and table2 having Empid,firstname,lastname can i union them using Union t/f?
Explain where to store informatica rejected data? How to extract the informatica rejected data?
hw cn v elimate dublicate values from lookup without overriding sql?
my source having 10 records but how can i load 20 records in target, i am not bother about duplicates?
How to convert a row into column and a column into rows? Name all DTM threads. What all threads stop when we issue STOP or ABORT? How to pass the value of a data(variable kind of) from one session ( generated in mapping) to another session in the same workflow... What are the tyoes of partitioning you know and how to apply them in real time ... Can partitioning be applied to expression transformation and how
What is a data modeling?
what is pre and post sql and what is diff between source presql and target pre sql
Teradata 
