Data Stage Interview Questions
Questions Answers Views Company eMail

how to do pergformence tuning in datastage?

TCS, Symphony, MCA,

4 28922

what is the difference between datasatge and datastage TX?

6 18989

What is exact difference between Parallel Jobs and server Jobs..


7 9169

How can we run same job in 1 day 2 times


4 8208

Wat is pre-load in Hashed file


1 5871

How can we run same job in 1 day 2 times


7 11578

What is exact difference between Parallel Jobs and server Jobs..


8 34850

tell me abt Datastage trigger?


1 12985

How do y read Sequential file from job control?

IBM, Telesis, HP,

2 8643

How do u call shellscript/Batch file from DS?


4 17242

What are the different database update actions available?


1 5889

Wat is isolation level and when do u use them?


1 14029

How do u view log file for a particular job?


6 15982

How do u set a default value to a column if the column value is NULL?


7 18584

How did you reconcile source with target?


2 5603

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Un-Answered Questions { Data Stage }

How to find value from a column in a dataset?


What is the Environment Variable need to Set to TRIM in Project Level?(In transfermer, we TRIM function but I need to impliment this project level using Environment variable)


why do u need the IOS upgradation in a FC switch


in oracle target stage when we use load option and when we use upsert option?


create a job that splits the data in the Jobs.txt file into four output files. You will direct the data to the different output files using constraints. • Job name: JobLevels • Source file: Jobs.txt • Target file 1: LowLevelJobs.txt − min_lvl between 0 and 25 inclusive. − Same column types and headings as Jobs.txt. − Include column names in the first line of the output file. − Job description column should be preceded by the string “Job Title:” and embedded within square brackets. For example, if the job description is “Designer”, the derived value is: “Job Title: [Designer]”. • Target file 2: MidLevelJobs.txt − min_lvl between 26 and 100 inclusive. − Same format and derivations as Target file 1. • Target file 3: HighLevelJobs.txt − min_lvl between 101 and 500 inclusive. − Same format and derivations as Target file 1. • Rejects file: JobRejects.txt − min_lvl is out of range, i.e., below 0 or above 500. − This file has only two columns: job_id and reject_desc. − reject_desc is a variable-length text field, maximum length 100. It should contain a string of the form: “Level out of range: ”, where is the value in the min_lvl field. My Question is how do you write the stage variable for reject rows.


what are .ctl(control files) files ? how the dataset stage have better performance by this files?


Sorce contins the metadata sorce ----- hyderabad,chennai,banglore by using nested loop sequence select sourch as hyderabad in target just run target as hyderabad only not others please give me answer thanks in advance(give reply how to wrote logic using nested loop sequence)


how can we create rank using datastage?what is the meaning of rank?


Is it possible to implement parallelism in Mainframe Jobs ? If Yes how ? If no why ?


8000 jobs r there i given commit, suddenly job will abort? what happens? 2)diff b/t transformer stage & filter stage? 3)how to load the data in the source?


Can you filter data in hashed file?


1)what is the size of Fact table and dimension table? 2)how to find the size of Fact table and dimension table? 3)how to implement the surrogate key in transform stage? 4)write the configuration file path? 5)how many types of datasets explain? 6)diff b/w developed projects and migration projects? 7)how to delete the header and footer file of the sequencer file? 8)how can u call the parameters in DS in unix environment? 9) how much data ur getting daily ? 10)


Hi, My source is oracle(eno,ename,sal,commision,...), my requirement is like this, if there is a null values in commission col i want to keep it as null,and for the remaining first two characters of the value in my target. Plz help me


explain about completely flow of sequencers technicaly,without using example??explain about lookup,nullhandling?


what is flow of project?