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source table have 3 records? and it is sucessfully loaded
into target. and 4more records is added in to source .that
means 7 records now in source. we have to load the
remaining 4 records into the same trgt table with maintian
top 3 records. how ?can any one give me the data flow of
this logic plz?
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Answer / ap
Use the target table as lookup and check for the existance
of the rows from source in the lookup. If the row already
exists then ignore and only pass the new rows to the target.
| Is This Answer Correct ? | 18 Yes | 3 No |
Answer / vinod
Use Update Strategy Transformation. Identity an unique
field or an unique combination which is the primary key.
Check the primary key field or combination field in Update
stratergy based on which the target is updated. If the key
from the source matches with the target key field, then
these rows not inserted into the target, else it gets
inserted
Correct me if I am wrong
| Is This Answer Correct ? | 11 Yes | 0 No |
Answer / kishore
Hi this will do by using INCREMENTAL LOADING.
We should delete records on staging area by using presql on
target(staging).
now staging having only new records..
| Is This Answer Correct ? | 2 Yes | 8 No |
Answer / ajit
just give truncate table option in session properties of
target table.if you dont want to delete the old records and
load from 4th record onwards then you have to use sequence
generator and filter give key>=4
| Is This Answer Correct ? | 1 Yes | 8 No |
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