What is the flow of loading data into fact & dimensional tables?
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This is UNIX question asked in DataStage Interview. Say I have n numbers of records in a text file. I want first 3 records in 1st file, last three records in 3rd file and remaining n-6 records in 2nd file. (Note: we don't know how many records are there in the File. I am getting one file on daily basis and I want three target files as asked above)
1)How will u implement SCD2 by using surrogate key. 2)What are the disadvantages with surrogate key. 3)How will you handle nulls in your project for the varchar, integer data types. 4)Can I use two fact tables in star schema. 5)3 jobs are running on the 2 nodes after I added one more node so can I compile those jobs to run on three nodes.
how many datamarts we will use in real time project and when will use the datamart?pls send the replay early
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: <min_lvl>”, where <min_lvl> is the value in the min_lvl field. My Question is how do you write the stage variable for reject rows.
Explain how a source file is populated?
what are the types of nodes
What is the precedence of stage variables,derivations, and constraints?
How to read the length of word in unix?
my source is sequencial file and my target is dataset. i am running the job in two node configuration file. my source having 10 records how the data move to target?
What are the different options associated with dsjob command?
1.new record it will insert but changes of natural key is not present in taget i want to update (here key is composite natural key )can any one help this to explan how to do
Explain briefly scd type2 in datastage7.5x2(parallel)
Teradata 
