What is the difference between a Physical File & a Logical?
Answer Posted / narender
Physical file (PF) contains the data and have only one
record format. Logical file (LF) is a view of the physical
file which does not contain any data may be based on one
physical file or more then one physical file. Logical file
can have more then one record format. Logical can be non
join or join logical file. Performance becomes better if
you use the logical file in the program.
| Is This Answer Correct ? | 48 Yes | 8 No |
Post New Answer View All Answers
how can a cgi check whether an ifs object is available?
what are necessary keywords to code message subfile?
in which specification the report layout can be defined?
how can a message from a message file appear as a constant on the screen?
What is the as400 called now?
what is the command used to invoke rlu ?
A join logical file has how many record formats?
What is the default access path of a file?
define the purpose of the *bcat function?
What are the mandatory keywords of sub file?
define the purpose of the %sst function?
what is the purpose of putovr (put with explicit override) keyword?
what is the maximum number of files allowed in rpg?
how can u check no of records in a file?
WHICH REPLY CODE IS USED BT sftp ? ... (e.g.226 is used by FTP IF FILE IS TRANSFERED)