clarify me on flat file9esds) ?

[samayamsasi]

Hi All,

Please clarify on flatfile(esds), my questions

1.How we will delete the flat file ?
2. Can we delete record by record ?
3. Can we update the flat file ?

Thanks in advance
Sasi

[Kgumraj]

Please clarify on flatfile(esds), my questions

1.How we will delete the flat file ?
2. Can we delete record by record ?
3. Can we update the flat file ?

Thanks in advance
Sasi


Hello,

1) you can use either a tso command or JCL to delete a flat file (any type)
2) In ESDS it is not possible(Physical deletion is restricted)
3) Yes you can update a ESDS file.

FYI: ESDS file a advanced sequential file, with properties like Alternate Key and some other fetures

[dbzTHEdinosauer]

Document SC26-9049-05, though a little old, has excellent description and clarification of VSAM files and the acceptable COBOL verbs to be used while processing.

flatfile is an expression normally associated with a QSAM sequential file.

an ESDS is a VSAM sequential file; flatfile is not used to describe an ESDS file.