What is the difference between ITER and DO ? I know both are
used to execute set of statements repeatedly, but what is the
main difference?

Answers were Sorted based on User's Feedback



What is the difference between ITER and DO ? I know both are used to execute set of statements rep..

Answer / joy mukherjee

There is no comparision between DO and ITER as DO statement
is an looping statement and ITER is an branching statement
like LEAVE.
When I use ITER with some condition inside a DO-ENDDO loop,
when that condition occouerd, ITER transfered the control
to ENDDO not out of the loop like LEAVE ie it just skip the
excecution of statements between ITER and ENDDO.

In one statement we can say that ITER in RPGLE is same as
CONTINUE in C.

Is This Answer Correct ?    27 Yes 1 No

What is the difference between ITER and DO ? I know both are used to execute set of statements rep..

Answer / chittim

with in a do loop itself again we have to create loop again
where u want loop by using iterate.

Is This Answer Correct ?    2 Yes 9 No

Post New Answer

More RPG400 Interview Questions

what is post opcode do

1 Answers   CTS,


difference between 1:%found and %equal built function in detail with example .

6 Answers   Polaris,


How to select highest score of each subject or how to select highest income of every month?

0 Answers  


how can i retrieve the field name from display file at run time? Devendra Singh Tomar

3 Answers  


what was the robotech rpg?

0 Answers   IBM,






Hi all friend, Could Any body send me the code (with coding) of this senario because I have tried but I am stucking somewhere so Please reply ASAp with coding. senario:Q: I have to write the flat file(FLAT1) into the three different PFS (PF1,PF2 and PF3) with the respect of H line data, D line data and Z line data of flat file. where I have different data in flat file(FLAT1) which is mentioned below with data. H0929200909282009092820095529420003000073 D2222220006765555webservi001633.9909222009092820090924200951 8564380134049ROSNER TOYOTA OF FREDE FREDERICKSBURVA 224080000USA840840001633.99001633.99851856492689800208001915 511001633.990408490000000.0000000003446048 1,3 110793145 09070700351 372367 Rosner Motors D3333320006774444webservi000271.2409222009092820090924200951 8564380134049ROSNER TOYOTA OF FREDE FREDERICKSBURVA 224080000USA840840000271.24000271.24851856492689800208001835 511000271.240930680000000.0000000003450293 1 110793254 09072100079 373933 Rosner Motors Z0929200900000020001905.25 FLAT1 has the three pf data H line-represents the header pf data,D-Represent Details pf data,Z-Represents the trailer pf data Now I have to write H line data of flat file into Header pf (PF1),D line data of flat into datails pf(PF2) and Z line data of flat file into pf(PF3) with the spefic position(H,D and Z data of flat file into PF1, PF2 and PF3) of flat file.

4 Answers   IBM,


What is the difference between iter and do?

0 Answers  


What is file identifier where we can use?

0 Answers  


RETRIVING DELETED RECORDS :- I'm frequently asked how to retrieve deleted records from an unjournaled physical file when the deleted records have not yet been removed from the file. Utility UNDEL lets you undelete records in a physical file. This public domain program is available in CISC and RISC versions, and the complete source code is available for download at: UNDEL for AS/400 Save File (RISC): http://www.as400network.com/sharewarefiles/undelris.zip UNDEL for AS/400 Save File (CISC): http://www.as400network.com/sharewarefiles/undel.zip UNDEL for AS/400 Save File (Source code): http://www.as400network.com/sharewarefiles/undelsrc.zip The utility takes advantage of the fact that deleted records in physical files are only flagged as deleted, and the record data still exists until it is overwritten or the file is reorganized with a utility such as RGZPFM. UNDEL simply reads the deleted record, then reuses the record by writing over it with the new record (thus eliminating the flag for the deleted record). Some homegrown and commercial utilities copy the file containing undeleted records to a save file, then use a program to read the save file, which contains live and undeleted records, to a file to undelete the records. The UNDEL utility is superior to the SAVF technique because there's no need to copy the file to a save file, which is especially important for really large files. When run, UNDEL displays the physical file records in their unformatted, raw text form. You can either position the display to a given relative record number or use F19 or F20 to find the previous and next deleted record, respectively. The utility also includes online help, which is almost unheard of for free utilities. Other utilities include the ability to undelete records. You can use the RTVDLTRCD command in the old QUSRTOOL (no longer supported by IBM). QUSRTOOL is now a commercial product called TAA Productivity Tools ( http://www.taatool.com ). The free file editor WRKDBF has a built-in undelete capability ( http://www.wrkdbf.com ), and several commercial file editors can undelete records. For a complete list of file editors, go to http://www.sourcebook400.com, select "Programmer Tools" under "Product Category," then select "File Editors."

0 Answers  


How can read PF in reverse order (end to start) in CL pgm..

8 Answers   TCS,


are there any useful c runtime apis that I can call from rpg iv?

0 Answers   IBM,


Can we possible to key with the date field?

1 Answers   IBM,


Categories