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What is a flat file and what are the uses of Flat files

 
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markanthos

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Joined: 28 Apr 2005
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Location: India

PostPosted: Wed May 11, 2005 12:46 pm    Post subject: What is a flat file and what are the uses of Flat files
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What is a flat file and what are the uses of Flat files?

How many types of flat files are there?
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priya

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Joined: 24 Jul 2003
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Location: Bangalore

PostPosted: Wed May 11, 2005 2:05 pm    Post subject:
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Flat Files - NON-VSAM Files.

Types:

QSAM
BSAM
BDAM
ISAM
BPAM
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markanthos

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PostPosted: Wed May 18, 2005 12:33 pm    Post subject: Re: What is a flat file and what are the uses of Flat files
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What are the full forms of the above mentioned files.
Please elaborate on their usage
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priyesh.agrawal

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Joined: 28 Mar 2005
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Location: Chicago, IL

PostPosted: Wed May 18, 2005 3:52 pm    Post subject: Re: What is a flat file and what are the uses of Flat files
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QSAM : Queued Sequential Access Method : A file access method for reading, writing and updating sequential data sets and partitioned data set members.

BSAM : Basic Sequential Access Method

BDAM : Basic Direct Access Method

ISAM : Indexed Sequential Access Method : A method for managing how a computer accesses records and files stored on a hard disk. While storing data sequentially, ISAM provides direct access to specific records through an index. This combination results in quick data access regardless of whether records are being accessed sequentially or randomly.

BPAM : Basic Partitioned Access Method : An access method for reading members of partitioned data sets.

Regards,

Priyesh.
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