what is hash file
Answers were Sorted based on User's Feedback
Answer / avni
1. Hash files is mostly used for lookups to avoid duplicates
2. Hash files acts as a reference table based on a key field
3. It can have any num of inputs and outputs and basically used to remove duplicates
4. It uses hashing algorithm to distribute data
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / prasad
Hash file is used to read data from/write data to Hash file.
it is used to remove duplicate from source data.
Is This Answer Correct ? | 0 Yes | 0 No |
Differentiate between Symmetric Multiprocessing and Massive Parallel Processing?
A job is having only 2 stages I/p dataset and target table.Job is taking very long time to load 50 million records.How to improve performance of this job.
Unix Qn asked in datastage interview: I have diff type(.txt, .tmp, .bat etc) of file in 4 diff directories, I want move all '.txt' file from 4 directories to other folder. And need to delete all the files except which are created TODAY?
Can you explain engine tier in information server?
What is the difference between datastage and informatica?
Explain the functionality of your current project?
1 Answers IBM, Miles Software,
how to find no.of records in sequntial file itself?
why we use parameters instead of hard code in datastage
CHANGE CAPTURE
What are some prerequisites for datastage?
what is the exact difference between dataset and fileset in datastage?
2.how u run your rotines in unix? what is job sequencer? if i have 4 jobs i would like to run 2 jobs in server(using job jobsequencer)and remaining 2 in parallel?how can i run?