Distinguish between logical file and physical file?
Answer Posted / jeetendra yadav
Physical file contains only one record format.
Logical file contains more than one record format.
Physical file contains actual data.
Logical file doesn't contains data but it provides view from the physical file.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
define subsystem?
What is file access opcodes?
what is the maximum number of subfiles that can specified in a display file ?
which single rpg opcode performs both setll and reade?
what is the difference between packed decimal and zoned decimal?
what is a program described file in rpg?
when are the referential constraints executed?
Explain this error: "all record formats for externally-described file abcd ignored or dropped due to error; file ignored."?
give three main purposes of file specification ?
how can you detect overflow for a print program that prints multiple lines per cycle?
how can a message from a message file appear as a constant on the screen?
difference between sflrcdnbr and sflnxtchg?
what is subfile?
how to pick up the changed records every time in a subfile after the first change made ?
What is array in as400? What are the types of array?