What is the difference between a Physical File & a Logical?
- 28 Answers
- 102270 Views
- Accenture, ACS, IBM, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / david
In a database management system, a physical record is the actual binary representation of the data whereas the logical record is the text representation of the data that humans can read and understand.
| Is This Answer Correct ? | 4 Yes | 3 No |
Answer / satyendra prajapati
In physical file it takes memory because it contain actual record.logical file not contain memory because it does not contain data its views of the data stored in physical file.
physical file have only one data format.logical file have more than one record format.physical file may exist SSD(secondary storage).Logical file does not exist SSD.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / saurav
Ph s like bytes are stored in a file.. Doesn't knw from whr d input is coming but lf is aware of it..
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / anwar khan
PF file hold the actual data of a database file.
LF is a view of the logical view of data
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / sarita
Physical file is the file that already present on disk or tape
and operating system can hide particular info of file is nothing but logical file.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / mithun paul
We can perform Update operations on PF. On the other hand
we can perform Update operations on simple LF(not with
multi format LF or Join LF)
Mithun Paul
KMG Infotech Ltd.
Kolkata
| Is This Answer Correct ? | 6 Yes | 6 No |
Answer / ankit singh
1. When we open a file stored on a disk, its logical file is
created and we work on that file.
2. Once we save the file, the changes we made are reflected
in the physical file. If we don't save the file, the
physical file doesn't get affected.
3. When we close the file, the logical file which was
created on opening the file, gets destroyed.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / teja
The Physical file stores the actual data.
The Logical File is a sequenced VIEW of the data in the Phsyical FIle.
| Is This Answer Correct ? | 1 Yes | 2 No |
what key word is used when screen is re-display?
DIFFERENCE BETWEEN BINDING LANG AND BIND DIR WHEN USING IN SERVICE PGM...when using binding directory service pgm is necessary?
What is a Member?
How to Define a Procedure in RPG?
how to see all source files in a particular library? ex:xyz is a library name a,b,and c..... are source files how to see?
which are the string manipulation opcodes?
Show 2 ways to convert a date from YYMMDD to MMDDYY (MULT operation not acceptable)
What process the command SBMRJEJOB does?
What is the exact difference between Service Program and Binding Directory?
When does the DFT keyword in PF be used?
How many types of jobs?what is difference between interactive and batch and submited jobs?
what is the purpose of DMPCLPGM IN CL?
RPG400 
