What is the difference between a Physical File & a Logical?
Answers were Sorted based on User's Feedback
Answer / jothi lakshmi
physical file:physical file is an object of *file it
contains orginal data.
Logical File: contains only an index to the data stored into
the physical files.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / subbaro.d
IN PF IT TAKES MEMORY AND IN LF DONT TAKE MEMORY ONLY READ ONLY
| Is This Answer Correct ? | 18 Yes | 24 No |
Answer / ka
the physical file exists on ssd(secondary storage), logical
is not exists on ssd
| Is This Answer Correct ? | 19 Yes | 28 No |
Answer / sasi
1.IN PF WE CAN VIEW ALL THE DATA
2.IN LF WE CAN SORT THE DATA(WE CAN SEE ONLY LIMITED DATA)
| Is This Answer Correct ? | 12 Yes | 22 No |
Answer / vishal
PH file is the core data file.
where LF is the duplicate value of ph file that is use only
for display.
| Is This Answer Correct ? | 11 Yes | 21 No |
Answer / rk
physical representation a file may take, the logical view
of a unix file is the same
| Is This Answer Correct ? | 12 Yes | 25 No |
Answer / harish
hi guys, i also have one aswer for logical and physical files
correct me if im wrong.
logical file= file which is in memory {temporary}
physical file = which is stored on an external
disk...{external storage medium}
what do u recon guys?
| Is This Answer Correct ? | 9 Yes | 24 No |
how can I control from my cgis the cache of a remote browser?
What are the different types of access paths maintained on the file?
how does the runqry show the output?
how does union file maintains record formats?
at what level s,o are defined and what they will do?
I have to execute 12000 CL Commands one by one.. So, I have created a file called COMMAND. This file has only 1 field called STRING. This file had 12000 records, and all these records are CL Commands (ex: CALL PGM(PGM1)), etc) I have written a CL which will read all the record and do sbmjob.. But it is not working... Plz help me to exexute all these 12000 commands..
What is the use of jdftval in as400?
Which command is used to replace CDUP command in FTP IF i WANT TO USE SFTP?
the maximum number of subfiles that can be active for a single file is ____ .
how can database records be read without lock ?
What are the two main attributes, which govern the execution of a job?
how many maximum spaces could be given in o specs?