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What Is The Difference Between Physical File And Logical File?

Answer»

Physical file

  • Occupies the portion of memory. It’s containing data. 
  • A physical file contains one record format
  • Can be exist EVEN WITHOUT LF
  • If you delete a LF, the PF can’t be DELETED
  • CRTPF command is used to CREATE such object

Logical file

  • Does not OCCUPY any memory space. Does not contain any data.
  • A logical file can contain up to 32 record formats.
  • Can’t exist without PF
  • If you delete a LF, the PF can’t be deleted
  • CRTLF command is used to create such type object

Physical file

Logical file



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