Explain the process in which flat files are converted into VSAM files.


Posted On: Feb 22, 2018


Flat files can be converted into VSAM files with this process.

  • First, identify the primary key or the whole record can be the primary key top. You can also use the alternate key if necessary.
  • All the files are to be sorted by the primary key or by the whole record.
  • The "Sort" command can be used to delete all the duplicates from files.
  • One JCL/ IDCAMS command needs to be submitted with the result got by sorting mechanism. This result should be input.
  • Finally, the IDCAMS command for "Repro" should be used to load the flat file into a VSAM file.
  • In this way, one can convert flat files into a VSAM file.

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