Answer / mr. cooooool

Hi....................

Vsam is a collections of 4 types of files(KSDS,ESDS,RRDS,LDS)
which can be accessed Sequentialy,Randomly & Dynamicaly.

While Dataset can be a Type of VSAM, QSAM OR NON-VSAM.


THANKS.

Answer / mahesh

data sets are two types
1 vsam data sets
2 normal datasets
vsam data sets are called asa clusters here records are
saved in the control intervals(CI)
but in normal data sets records are entered in blocks

explain how many ways you can load data in a vsam cluster?

0 Answers   IBM,

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Is it slower if you access a record through ALT INDEX as compared to Primary INDEX? Why?

1 Answers  

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By seeing a program how we findout it is a VSAM program?

6 Answers   TCS,

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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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what are the additional information you should give in the dd statement while defining the next generation of a gdg?

0 Answers   IBM,

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what are s0c1, s0c4, s0c5, s0c7 abends?

0 Answers   IBM,

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During processing of a VSAM file, some system error occurs and it is subsequently unusable . What do you do ?

1 Answers  

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what are the codes returned by the ams (access method services) command during the execution in vsam?

0 Answers   IBM,

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What is the index set?

1 Answers  

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What is the meaning of each of the values in SHAREOPTS(2 ?

1 Answers  

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is it slower if you access a record through alternative index as compared to primary index?

1 Answers   IBM,

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What makes vrrds different from vsam?

0 Answers  

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