Answer Posted / 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

what is the use of materialized view?

956

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A signal has a wavelength of 1 micro min in air.how far can the front of the wave travel during 1000periods?

2027

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Define orabulk and bcp stages?

675

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EXPLAIN SCD

956

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What are the functionalities of link partitioner and link collector?

594

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what is 'reconsideration error' and how can i respond to this error and how to debug this

2115

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How do you reject records in a transformer?

624

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What are the main features of datastage?

658

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How can we improve performance of data stage jobs?

612

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AGGREGATOR default datatype

931

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Explain Quality stage?

662

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How many types of stage?

673

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How you can fix the truncated data error in datastage?

1191

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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.

2185

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Lookup constraints

838

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