Answer / Punit Tripathi

Key Sequenced Datasets (KSDS) are a type of VSAM file in IBM mainframe environment with distinct features such as:
1. The records are stored using a key value that determines their order.
2. Key can be either unique or non-unique, but the dataset will maintain the sort order based on the key.
3. KSDS allows for multiple users to read or write concurrently.
4. It supports automatic record chaining (LRU, MRU, and LIFO chaining).

what is buffering and how does it apply to vsam files ?

1 Answers   IBM,

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what is meant by s0c-07 system abend codes?

1 Answers   IBM,

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Suppose 3 generations of a GDG exist. How would you reference the 1st generation in the JCL?

2 Answers   IBM,

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what is the concept of AIX in vsam ????

1 Answers   HCL,

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By looking into JCL can we identify the dataset is VSAM (VSAM dataset supposed to be a input dataset).In this scenerio how will we identify the dataset is VSAM ?

5 Answers   Cognizant, EDS, Shridhar,

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What is the main function of key sequenced data set in vsam?

1 Answers  

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Suppose a generation of GDG gets created in a particular step of a proc. How would you refer the current generation in a subsequent step? What would be the disposition of this generation now ?

4 Answers   Patni,

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What is the use Free space in CI ?

4 Answers  

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What is SHAREOPTS ?

2 Answers  

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In a file(PS), we dont know how many records are there. requirement is divide half n half the records n insert into 2 another files(PS).

6 Answers   Cap Gemini, TCS,

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What is the meaning of VSAM RETURN-CODE 28?

3 Answers  

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Explain the purpose of the file status clause in the select statement?

1 Answers  

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