1.how to generate even numbers in surrogate or tranformar
stage ?
2. how many ways to remove duplicate values?
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Answer Posted / subhash
1) By using Stage variables in transformer, we can generate even numbers,
Declare a stage variable - SV1 and initialize to '0'.
In the derivation of that stage variable increment by 2.
i.e. SV1=SV1+2.
By using Surrogate key in transformer, use the below logic in derivation part.
Surrogate_Key -----> If mod(Surrogate_Key,2)= 0 then Surrogate_key Else Surrogate_Key + 10000001
2)Removing Duplicates
a. By using Remove Duplicates Stage.
b. By using SORT Stage,Sort on KEY Column and set 'Allow Duplicates' to 'FALSE'
c. By using Link Partitioning, use 'HASH partition' on KEY Columns and Select Perform Sort and UNIQUE options.
d. By using Transformer Stage Variables,
SV2----->If SV1=KEY_Column then 0 Elso 1
SV1----->KEY_Column
In the Constraint Part give as,
SV2=1
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