Interested to Buy Any Domain ? << Click Here >> for more details...
1.how to generate even numbers in surrogate or tranformar
stage ?
2. how many ways to remove duplicate values?
- 5 Answers
- 15043 Views
- Gallega, TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
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
| Is This Answer Correct ? | 9 Yes | 0 No |
Answer / pavan
To generate even numbers using transformer, we can make use
of stage variables. declare a stage variable say SV1 and
initialise it to 0. In the derivation of that stage
variable increment it by 2 which looks like SV1+2. By doing
this we can generate even numbers.
mail me @ akellapavankumar@gmail.com for more info.
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / kumar
By using distinct we can eliminate duplicates,
by using variable comparison we can eliminate duplicates.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / pavan
To remove duplicates we could use Remove Duplicates Stage.
If the requirement states not to use a remove duplicates
stage, u culd use Sort stage, by setting one of its
property Allow Duplicates to false.
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / kiran
IN surrogate key generator stage set the block size to 2
with initial value as 2, it will increment the surrogates
by 2 and will get you even numbers. I don't think in any
real world scenario you would do this as it violates
surrogate key concept. I wish the interviewer knew this
before he/she asked you.
| Is This Answer Correct ? | 1 Yes | 4 No |
If there is a file that contains 1000 records, I need the ouput to contain these 1000 records with the header as file name concatenated with the current timestamp and trailer as the count of records
by using dsjob..we can run only one job at a time?how can u run multiple jobs at a time in unix?
IS FILE SET CAN SUPPORT I/P AND O/P LINK AT A TIME?
my soure table is emp having columns sal,deptno in the deptno 10,20,30deptno row are there expected out put is min(sal) of 10th deptno,max(sal) of 20th deptno,mean(sal) of 30th deptno using aggregation stage
How to create a file using vi editor? 2)how to delete a file in vi editor? 3)How to connect the server datastage to unix? what r the command lines we r using? 4)30 jobs r runnig in unix i want to find out my job. how to do this? give me command?
What is the flow of loading data into fact & dimensional tables?
1)i put Pharma Project in my Resume..whar are the sources used in my project Generally? 2)how many fact and dimensional tables used? 3)Have u used any Datamarts and measues in fact table? ....plz give the answers...
i have a scenario with i/p as ID,salary with values 1,1000 2,2000 and 3,4000 i need an extra column in the o/p named amount with values 2000,4000 and NULL. how can i get it?
How do u convert the columns to rows in datastage?
what is 'reconsideration error' and how can i respond to this error and how to debug this
Describe routines in datastage? Enlist various types of routines.
Can you explain repository tables in datastage?
Teradata 
