is it required that primary key values have to be unique? Do alternate key values have to be unique?

0 Answers   IBM,

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What are the distinctive features of a ksds, key sequenced dataset?

2 Answers  

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How many cluster index can have in a table?

3 Answers   HSBC,

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what is the drawback of vsam dataset?? a.execution slow. b.free space. c.independent storage device. d.none of the above. let me know the answer with reason.

4 Answers   Target,

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How do you define a GDG ?

1 Answers   IBM,

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if you wish to use the rewrite command how must the vsam file be opened?

0 Answers   IBM,

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Hi, I want to create alternate index on VSAM file.my file structure is ex: RoomID pic x(7) R000001 Floor pic a((6) First RoomNo pic x(2) FA1 Occupied(yes/no) pic a(3) Yes Occupied Batch pic x(10). Maths i want to create alternate index on floor,roomno fields.can i create alternate index on both the fields.and tell me how to create.

1 Answers  

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what will happen when you try to open an empty vsam file in a cobol program for input?

0 Answers   IBM,

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If you wish to use the REWRITE command haw must the VSAM file be opened?

1 Answers  

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What are the different dataset organizations used in vsam?

0 Answers  

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in a cobol select statement, can you tell what is the organization for a ksds?

0 Answers   IBM,

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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?

2 Answers   IBM,

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