Answer / noah

cpyf copy file member is to copy file content to an existing
file. If file does not exist then user can create a new
file. The structure will be based on source file.

crtdupobj create duplicate object, create clone exactly as the
source file with structure and content with its link to prgram
and logical file and its authority setting as well. no need to
recompile pgm that use this file.

Answer / sujan

wE CAN'T ABLE TO CREATE A LOGICAL FILE DUPLICATE BY USING
CPYF COMMAND, IF U USE THIS THE LOGICAL FILE CREATED OF FILE
TYPE *PF INSTEAD OF *LF.SO THAT U USE CRTDUPOBJ TO CREATE
THE LOGICAL FILES DUPLICATES

SYNTAX:

CRTDUPOBJ OBJ(OLD_OBJNAME) FROM lIB(LIBNAME)
OBJTYPE(OBJTYPENAME) TOLIB(TOLIB_NAME) NEWOBJ(NEWOBJ_NAME)

Answer / indraneel

cpyf command is to be used when you want to copy the data
of the file. For eg. if want a selection of data that can
be done. It is not necessary that from file and to file
record format are exactly same

In case of crtduobj, a clone of the object is created.

Answer / sanjay

CPYF command are used to copy the all data from one data
base file to another or copy the required data from one
file to another files .

when we copy the data from one file to another file that
time if user want to create new file then create new file
object by using CPYF command

CRTDUPOBJ - this command used to create duplicate object
from any existing object your AS400 system.

Answer / swami redddy

the command is used to create a duplicate object crtdupobj
from an existing object .this command not only creates a
duplicate objects but also copies the contents of the existing
object into a newly created duplicate object.
syntax for crtdupobj as given below
crtdupobj obj(old object name)
from lib(lib name)
obj type(any valid as/400 obj type)
to lib(into which obj.must be created)
newobj(new obj name)
data(*yes/*no)
(constraint) cst (*yes)
(trigger) trg (*yes)

Answer / parikshit

CRTDUPOBJ:1)triggers gets copied in the new file, also new
files gets journalled if base file is being journalled.
2)New file member name can able to changed.
3)Can copy selected members data from base file
to new file.
CPYF: 1)triggers not copied. New file not journalled.
2)New file member name cant changed.
3)all members data gets copied into new file.

Answer / suri

CPYF works on physical files only.
CRTDUPOBJ works on any file.
If we use CRTDUPOBJ New files gets journalled if base file
is being journalled.
In CPYF new files r not jounalled.

Answer / shikha

Copy File (CPYF) command could be used to copy the source
into a database file.
(CRTDUPOBJ) command to create a copy of an existing object.
The duplicate object has the same object type and
authorization as the original object and is created into
the same auxiliary storage pool (ASP) as the original
object. The user who issues the command owns the
duplicate object.

If you create a duplicate object of a journaled file, the
duplicate object (file) will not have journaling active.
However, you can select this object for journaling
later. If you create a duplicate object and the object
(file) has no members, the last used date field is blank
and the count for number of days used is zero.

Answer / swami reddy

copyfile command copies the contents of existing database
file into another datbase file .
1.using cpyf command we cancopy data from external device to
a datbase file and viceversa..

thanks mr.Harshad R Suryawaunshi,i'm new to as400 i think you are telling in rpgile i know only rpg400 if possible can you tell in rpg400

0 Answers   iGate,

What is the length of Signature?

3 Answers   UST,

Hi,This is raju.Can any body give me the real experience answer for this question? 1.What is the significance of *MAP and *DROP in the CPY command?

3 Answers  

What are the necessary keywords required to code a message subfile?

3 Answers  

What you have to do in the display file when you are using message subfile?

1 Answers  

suppose i i am changing / updating record of subfile and i want to change the record in reverse order . means i want to change the bottom record first and so on through readc . how i do it please any one explain .

4 Answers   CSC,

Thanks gagan for your answer,i'm new to as400,i don't know embedded sql in rpg.can you send me the coding for the below mentioned question in embedded sql rpg. how to retrieve particular field records from a physical file,say i have a physical file called 'employee' in it i have to retrieve the records of a field 'admin' present in pf 'employee' using rpg,but i should not use logical file or openquery file.

2 Answers   iGate,

How Commitment and Roll back control is used in as400, explain with real time senario ???

2 Answers   Acolite, HSBC,

How can a screen field that has changed since the last output operation be detected?

4 Answers   IBM,

Suppose we have 10 records with same name and we are reading using READE,after 4 record i have to use CHAIN what is the output

3 Answers  

Why we cannot call a service program? If I add a PEP can i call the service program?

1 Answers   DELL,

How can you delete records form a file in rpg without using "Delete" OPCODE?

7 Answers